Pub Date : 2022-08-11DOI: 10.1080/02603594.2022.2108413
B. Brunschwig, D. Turner
Norman Sutin, a distinguished inorganic chemist who studied electron and charge-transfer reactions, died on January 31, 2022, at the age of 93. He was the founding editor of Comments on Inorganic Chemistry. Sutin pioneered the use of transition-metal complexes to study ground and excited-state reactions and to identify outer-sphere electron transfer reactions from other types of reactions. He was a master at using experiments to test theoretical descriptions of electron-transfer reactions, Figure 1. Sutin was born in Ceres, South Africa, on September 16, 1928. He was the third of three children and grew up in Paarl, an area northeast of Cape Town. In his late teens, he became interested in mysticism and meditation. During one meditation, he focused on how a candle burns. He believed this experience sparked his interest in how the exchange of different forms of energy can control chemical reactions. His initial work considered how energy released by radioactive decay controlled subsequent chemical reactions. Later, he studied how the thermal energy of the reactants controls rates of electron transfer between them, and then how absorption of light can provide the energy to drive a chemical reaction. Sutin received a bachelor’s degree with distinctions in Physics and Chemistry from the University of Cape Town (UCT) in 1948. He continued at UCT and received a master’s degree. He earned his doctorate in 1953 from Trinity College, Cambridge, in Alfred G. Maddock’s Radiochemistry group. He became friends with Dr. Garman Harbottle, a visiting scientist from Brookhaven National Laboratory (BNL), US. After a postdoc at Durham University, he moved to the United States and joined BNL as a Research Associate. He imagined Brookhaven as a bucolic area with green fields and
诺曼·苏廷，一位杰出的无机化学家，研究电子和电荷转移反应，于2022年1月31日去世，享年93岁。他是《无机化学评论》的创始编辑。Sutin率先使用过渡金属配合物来研究基态和激发态反应，并从其他类型的反应中识别外球电子转移反应。他擅长用实验来检验电子转移反应的理论描述，如图1所示。苏廷1928年9月16日出生在南非的谷神星。他在三个孩子中排行老三，在开普敦东北部的帕尔长大。在他十几岁的时候，他开始对神秘主义和冥想感兴趣。在一次冥想中，他专注于蜡烛是如何燃烧的。他相信这一经历激发了他对不同形式的能量交换如何控制化学反应的兴趣。他最初的工作是考虑放射性衰变释放的能量如何控制随后的化学反应。后来，他研究了反应物的热能如何控制它们之间的电子转移速率，然后是光的吸收如何提供驱动化学反应的能量。他于1948年获得开普敦大学(University of Cape Town, UCT)的物理和化学学士学位。他继续在UCT学习并获得硕士学位。1953年，他在剑桥大学三一学院阿尔弗雷德·g·马多克的放射化学小组获得博士学位。他与来自美国布鲁克海文国家实验室(BNL)的访问科学家Garman Harbottle博士成为了朋友。在英国杜伦大学(Durham University)获得博士后学位后，他移居美国，并加入英国国家实验室(BNL)担任研究助理。他把布鲁克海文想象成一个有着绿色田野和
{"title":"Norman Sutin, Founding Editor of Comments on Inorganic Chemistry: A Remembrance and Tribute","authors":"B. Brunschwig, D. Turner","doi":"10.1080/02603594.2022.2108413","DOIUrl":"https://doi.org/10.1080/02603594.2022.2108413","url":null,"abstract":"Norman Sutin, a distinguished inorganic chemist who studied electron and charge-transfer reactions, died on January 31, 2022, at the age of 93. He was the founding editor of Comments on Inorganic Chemistry. Sutin pioneered the use of transition-metal complexes to study ground and excited-state reactions and to identify outer-sphere electron transfer reactions from other types of reactions. He was a master at using experiments to test theoretical descriptions of electron-transfer reactions, Figure 1. Sutin was born in Ceres, South Africa, on September 16, 1928. He was the third of three children and grew up in Paarl, an area northeast of Cape Town. In his late teens, he became interested in mysticism and meditation. During one meditation, he focused on how a candle burns. He believed this experience sparked his interest in how the exchange of different forms of energy can control chemical reactions. His initial work considered how energy released by radioactive decay controlled subsequent chemical reactions. Later, he studied how the thermal energy of the reactants controls rates of electron transfer between them, and then how absorption of light can provide the energy to drive a chemical reaction. Sutin received a bachelor’s degree with distinctions in Physics and Chemistry from the University of Cape Town (UCT) in 1948. He continued at UCT and received a master’s degree. He earned his doctorate in 1953 from Trinity College, Cambridge, in Alfred G. Maddock’s Radiochemistry group. He became friends with Dr. Garman Harbottle, a visiting scientist from Brookhaven National Laboratory (BNL), US. After a postdoc at Durham University, he moved to the United States and joined BNL as a Research Associate. He imagined Brookhaven as a bucolic area with green fields and","PeriodicalId":10481,"journal":{"name":"Comments on Inorganic Chemistry","volume":"11 1","pages":"66 - 76"},"PeriodicalIF":5.4,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88746362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-08DOI: 10.1080/02603594.2022.2106977
V. Uskoković
ABSTRACT The Russian-Ukrainian scientist, G. V. Samsonov left an enormous legacy in materials science, even though a large portion of his and his group’s work remained hidden behind the Iron Curtain. One of his crowning theoretical contributions that received but a slight tidbit of resonance in the west was the configurational model of the solid state based on the statistical weight of atoms with stable configuration (SWASC). Only a handful of papers employing this model were published in the western journals since the model was developed, in 1965. Here, the configurational model was tested for its ability to explain the effects of divalent transition elements on solubility of hydroxyapatite when they acted as dopants in it. It is shown that the SWASC values for half-filled d orbitals of transition elements in the ± 5 pm range of ionic radii centered around iron do correlate monotonously with the solubility change induced by the dopant ions relative to the solubility of stoichiometric hydroxyapatite synthesized and analyzed under the same conditions when the solubility values are extrapolated to identical atomic ratios between the dopant ions and the constitutive calcium ions. The effect of SWASC, however, competes with that of the dopant concentration, producing a complex plexus of mutually antagonistic effects. With this work, it is hoped that the interest in the work of G. V. Samsonov and the generation of his Soviet and Yugoslavian scientific contemporaries gets revived and their legacy in the west popularized.
{"title":"The Samsonov Configurational Model: Instructive Historical Remarks and the Extension of Its Application to Substituted Hydroxyapatite","authors":"V. Uskoković","doi":"10.1080/02603594.2022.2106977","DOIUrl":"https://doi.org/10.1080/02603594.2022.2106977","url":null,"abstract":"ABSTRACT The Russian-Ukrainian scientist, G. V. Samsonov left an enormous legacy in materials science, even though a large portion of his and his group’s work remained hidden behind the Iron Curtain. One of his crowning theoretical contributions that received but a slight tidbit of resonance in the west was the configurational model of the solid state based on the statistical weight of atoms with stable configuration (SWASC). Only a handful of papers employing this model were published in the western journals since the model was developed, in 1965. Here, the configurational model was tested for its ability to explain the effects of divalent transition elements on solubility of hydroxyapatite when they acted as dopants in it. It is shown that the SWASC values for half-filled d orbitals of transition elements in the ± 5 pm range of ionic radii centered around iron do correlate monotonously with the solubility change induced by the dopant ions relative to the solubility of stoichiometric hydroxyapatite synthesized and analyzed under the same conditions when the solubility values are extrapolated to identical atomic ratios between the dopant ions and the constitutive calcium ions. The effect of SWASC, however, competes with that of the dopant concentration, producing a complex plexus of mutually antagonistic effects. With this work, it is hoped that the interest in the work of G. V. Samsonov and the generation of his Soviet and Yugoslavian scientific contemporaries gets revived and their legacy in the west popularized.","PeriodicalId":10481,"journal":{"name":"Comments on Inorganic Chemistry","volume":"18 1","pages":"106 - 128"},"PeriodicalIF":5.4,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75923158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-08DOI: 10.1080/02603594.2022.2109019
M. Afshari, R. Varma, S. J. Saghanezhad
ABSTRACT Heteropolyacids (HPAs) have been extensively investigated in view of their favorable attributes namely discrete ionic structure, high proton mobility, strong acidity, hydrothermal stability and reversible multi-electron redox behavior which renders them especially valuable in thermal and photocatalysis systems. Consequently, HPAs have found numerous appliances as catalysts for an array of selective synthetic transformations in organic synthesis. However, HPAs have detriments namely their extreme solubility in polar solvents and low specific surface area for a catalyst. To circumvent these drawbacks, many efforts have been made to support heteropoly acids on various nanomaterials. Herein, recent catalytic applications of HPA-supported on nanocatalysts are deliberated with a focus on useful synthesis and organic transformations including their use in conjunction with thermal/ microwaves and photochemical environment to accomplish the performance of some name reactions (Friedel -Crafts and Biginelli), the assembly of useful synthetic molecules (assorted heterocyclic compounds, acetalization, epoxidation, esterification and transesterification reactions and utilization of carbon dioxide) under sustainable and greener conditions including the safer remediation of recalcitrant pollutants (dyes, nitro compounds and antibiotics) and deactivation of bacterium in aqueous streams. GRAPHICAL ABSTRACT
{"title":"Catalytic Applications of Heteropoly acid-Supported Nanomaterials in Synthetic Transformations and Environmental Remediation","authors":"M. Afshari, R. Varma, S. J. Saghanezhad","doi":"10.1080/02603594.2022.2109019","DOIUrl":"https://doi.org/10.1080/02603594.2022.2109019","url":null,"abstract":"ABSTRACT Heteropolyacids (HPAs) have been extensively investigated in view of their favorable attributes namely discrete ionic structure, high proton mobility, strong acidity, hydrothermal stability and reversible multi-electron redox behavior which renders them especially valuable in thermal and photocatalysis systems. Consequently, HPAs have found numerous appliances as catalysts for an array of selective synthetic transformations in organic synthesis. However, HPAs have detriments namely their extreme solubility in polar solvents and low specific surface area for a catalyst. To circumvent these drawbacks, many efforts have been made to support heteropoly acids on various nanomaterials. Herein, recent catalytic applications of HPA-supported on nanocatalysts are deliberated with a focus on useful synthesis and organic transformations including their use in conjunction with thermal/ microwaves and photochemical environment to accomplish the performance of some name reactions (Friedel -Crafts and Biginelli), the assembly of useful synthetic molecules (assorted heterocyclic compounds, acetalization, epoxidation, esterification and transesterification reactions and utilization of carbon dioxide) under sustainable and greener conditions including the safer remediation of recalcitrant pollutants (dyes, nitro compounds and antibiotics) and deactivation of bacterium in aqueous streams. GRAPHICAL ABSTRACT","PeriodicalId":10481,"journal":{"name":"Comments on Inorganic Chemistry","volume":"288 1","pages":"129 - 176"},"PeriodicalIF":5.4,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87102351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-05DOI: 10.1080/02603594.2022.2094919
Keshab Mondal, Soumen Mistri
ABSTRACT Over the last few years, many Schiff base complexes of metal ions have exhibited substantial catalytic activity in various reactions such as oxidation, Henry reaction, hydroxylation, aldol condensation, and epoxidation. The literature survey shows that, over the past few years, there have been few reports on the catalytic aldol and Henry reaction where Schiff base-based metal complexes act as homogeneous or heterogeneous catalysis. This review reorganizes the various transition metal Schiff base complexes as well as chiral Schiff base metal complexes, which have potential application in catalytic activity on aldol and Henry reaction. Schiff bases are an important class of chelating ligands due to its coordination tendency and their complexes exhibit a wide range of applications in various fields like anti-bacterial, anti-fungal, antiviral, anti-cancer, antioxidant, anti-inflammatory, magnetism, luminescence, conductivity, sensing, catalytic, and so on. This review mainly focuses on the catalytic activities of Schiff base ligands and their transition metal complexes to the aldol and Henry reaction. GRAPHICAL ABSTRACT
{"title":"Schiff Base Based Metal Complexes: A Review of Their Catalytic Activity on Aldol and Henry Reaction","authors":"Keshab Mondal, Soumen Mistri","doi":"10.1080/02603594.2022.2094919","DOIUrl":"https://doi.org/10.1080/02603594.2022.2094919","url":null,"abstract":"ABSTRACT Over the last few years, many Schiff base complexes of metal ions have exhibited substantial catalytic activity in various reactions such as oxidation, Henry reaction, hydroxylation, aldol condensation, and epoxidation. The literature survey shows that, over the past few years, there have been few reports on the catalytic aldol and Henry reaction where Schiff base-based metal complexes act as homogeneous or heterogeneous catalysis. This review reorganizes the various transition metal Schiff base complexes as well as chiral Schiff base metal complexes, which have potential application in catalytic activity on aldol and Henry reaction. Schiff bases are an important class of chelating ligands due to its coordination tendency and their complexes exhibit a wide range of applications in various fields like anti-bacterial, anti-fungal, antiviral, anti-cancer, antioxidant, anti-inflammatory, magnetism, luminescence, conductivity, sensing, catalytic, and so on. This review mainly focuses on the catalytic activities of Schiff base ligands and their transition metal complexes to the aldol and Henry reaction. GRAPHICAL ABSTRACT","PeriodicalId":10481,"journal":{"name":"Comments on Inorganic Chemistry","volume":"5 1","pages":"77 - 105"},"PeriodicalIF":5.4,"publicationDate":"2022-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74427181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-04DOI: 10.1080/02603594.2021.1993837
S. Iravani, B. Zolfaghari
ABSTRACT There is an increasing demand for simple, greener, and cost-effective synthesis of nanomaterials and nanostructures with well-defined and uniform architectures. Recently, various studies are focused on the application of plant viruses and bacteriophages to construct innovative nano-based systems and nanoformulations; these viruses can be employed as suitable scaffolds or biotemplates for nanoparticle synthesis in view of their structural symmetry, simplicity in functionalization/surface modification, small sizes, various distinct shapes, simple genetic manipulation, monodispersity, and capability of self-assembling. Additionally, plant viruses and bacteriophages with their unique structures and relative simplicity have shown attractive advantages such as ease of isolation or purification processes and nonpathogenicity to humans and animals. However, there is still a lack of knowledge regarding the mechanisms and relative processes of nanoparticle formation using these viruses. Notably, host organisms are required for protein expression, and there are limited studies on optimization of nanoparticle synthesis and up-scalable and commercial production; therefore, more elaborative studies and comprehensive evaluations should be conducted to find and solve these challenging issues. In this review, important matters pertaining to viral fabrication of nanoparticles using plant viruses and bacteriophages are covered, with a focus on possible mechanisms and related important challenges. Graphical abstract
{"title":"Plant Viruses and Bacteriophages for Eco-friendly Synthesis of Nanoparticles: Recent Trends and Important Challenges","authors":"S. Iravani, B. Zolfaghari","doi":"10.1080/02603594.2021.1993837","DOIUrl":"https://doi.org/10.1080/02603594.2021.1993837","url":null,"abstract":"ABSTRACT There is an increasing demand for simple, greener, and cost-effective synthesis of nanomaterials and nanostructures with well-defined and uniform architectures. Recently, various studies are focused on the application of plant viruses and bacteriophages to construct innovative nano-based systems and nanoformulations; these viruses can be employed as suitable scaffolds or biotemplates for nanoparticle synthesis in view of their structural symmetry, simplicity in functionalization/surface modification, small sizes, various distinct shapes, simple genetic manipulation, monodispersity, and capability of self-assembling. Additionally, plant viruses and bacteriophages with their unique structures and relative simplicity have shown attractive advantages such as ease of isolation or purification processes and nonpathogenicity to humans and animals. However, there is still a lack of knowledge regarding the mechanisms and relative processes of nanoparticle formation using these viruses. Notably, host organisms are required for protein expression, and there are limited studies on optimization of nanoparticle synthesis and up-scalable and commercial production; therefore, more elaborative studies and comprehensive evaluations should be conducted to find and solve these challenging issues. In this review, important matters pertaining to viral fabrication of nanoparticles using plant viruses and bacteriophages are covered, with a focus on possible mechanisms and related important challenges. Graphical abstract","PeriodicalId":10481,"journal":{"name":"Comments on Inorganic Chemistry","volume":"100 1","pages":"226 - 248"},"PeriodicalIF":5.4,"publicationDate":"2022-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74217181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-29DOI: 10.1080/02603594.2022.2083608
Reem G. Deghadi, G. Mohamed
ABSTRACT A new series of La(III), Er(III), and Yb(III) complexes were synthesized from ferrocenyl Schiff base ligands (2-(1-((8-aminonaphthalen-1-yl)imino)ethyl)cyclopenta-2,4-dien-1-yl) (cyclopenta-2,4-dien-1-yl)iron (L1) and (2-(1-((1-carboxyethyl)imino)ethyl) cyclopenta-2,4-dien-1-yl)(cyclopenta-2,4-dien-1-yl)iron (HL2). Complexes were designed, synthesized, and characterized using various spectroscopic techniques. Molar conductance data exposed that the complexes were electrolytes except La(III)-HL2 complex, which was non-electrolyte. IR spectra denoted that Schiff bases were coordinated with transition metal ions in a bidentate manner, N,N donor sites with L1 and N,O donor sites with HL2. All complexes were octahedral and prepared in a 1:1 molar ratio with the ligands. Thermal behavior of the complexes was studied. The in vitro antibacterial activities of these compounds were evaluated against eight bacterial species such as four Gram positive bacteria (Staphylococcus aureus, Bacillus cereus, Bacillus subtilis, Streptococcus faecalis), and four Gram negative bacteria (Escherichia coli, Pseudomonas aeruginosa, Neisseria gonorrhoeae, Salmonella typhimurium) and results displayed that title compounds are biologically active. Also, they were assessed for their anticancer activities against cell line MCF-7 for breast cancer. Finally, molecular docking studies were tested for all prepared compounds with two different COVID-19 receptors (7BZ5 and 7C8J), also, against 3HB5 receptor of breast cancer. Molecular docking has shown favorable interaction between the title compounds and three protein receptors. This paper affords a manifestation of a novel tradition by which Comments on Inorganic Chemistry starts publishing original research content that, nonetheless, preserves the Journal’s identity as a niche for a critical discussion of contemporary literature in inorganic chemistry; for previous manifestations, see Comments Inorg. Chem. 2020, 40, 277–303, and references cited in the abstract thereof. GRAPHICAL ABSTRACT
{"title":"Can New Series of Half-sandwich Lanthanum(III), Erbium(III), and Ytterbium(III) Complexes of Organometallic Ferrocenyl Schiff Base Ligands Display Biological Activities as Antibacterial and Anticancer Drugs?","authors":"Reem G. Deghadi, G. Mohamed","doi":"10.1080/02603594.2022.2083608","DOIUrl":"https://doi.org/10.1080/02603594.2022.2083608","url":null,"abstract":"ABSTRACT A new series of La(III), Er(III), and Yb(III) complexes were synthesized from ferrocenyl Schiff base ligands (2-(1-((8-aminonaphthalen-1-yl)imino)ethyl)cyclopenta-2,4-dien-1-yl) (cyclopenta-2,4-dien-1-yl)iron (L1) and (2-(1-((1-carboxyethyl)imino)ethyl) cyclopenta-2,4-dien-1-yl)(cyclopenta-2,4-dien-1-yl)iron (HL2). Complexes were designed, synthesized, and characterized using various spectroscopic techniques. Molar conductance data exposed that the complexes were electrolytes except La(III)-HL2 complex, which was non-electrolyte. IR spectra denoted that Schiff bases were coordinated with transition metal ions in a bidentate manner, N,N donor sites with L1 and N,O donor sites with HL2. All complexes were octahedral and prepared in a 1:1 molar ratio with the ligands. Thermal behavior of the complexes was studied. The in vitro antibacterial activities of these compounds were evaluated against eight bacterial species such as four Gram positive bacteria (Staphylococcus aureus, Bacillus cereus, Bacillus subtilis, Streptococcus faecalis), and four Gram negative bacteria (Escherichia coli, Pseudomonas aeruginosa, Neisseria gonorrhoeae, Salmonella typhimurium) and results displayed that title compounds are biologically active. Also, they were assessed for their anticancer activities against cell line MCF-7 for breast cancer. Finally, molecular docking studies were tested for all prepared compounds with two different COVID-19 receptors (7BZ5 and 7C8J), also, against 3HB5 receptor of breast cancer. Molecular docking has shown favorable interaction between the title compounds and three protein receptors. This paper affords a manifestation of a novel tradition by which Comments on Inorganic Chemistry starts publishing original research content that, nonetheless, preserves the Journal’s identity as a niche for a critical discussion of contemporary literature in inorganic chemistry; for previous manifestations, see Comments Inorg. Chem. 2020, 40, 277–303, and references cited in the abstract thereof. GRAPHICAL ABSTRACT","PeriodicalId":10481,"journal":{"name":"Comments on Inorganic Chemistry","volume":"109 1","pages":"368 - 401"},"PeriodicalIF":5.4,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80777399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-28DOI: 10.1080/02603594.2022.2090347
Anjali S, S. B. S., M. Reddy
ABSTRACT The development of appropriate luminophores for detecting nitroaromatic explosives is a crucial issue for our safety and security. In the past decade, astounding efforts have been made towards the development of phosphorescent iridium probes based on diverse sensing mechanisms for explosive detection. Phosphorescent iridium materials possess unique properties such as long-lived phosphorescence, high quantum efficiency, and modular syntheses that render them as suitable alternatives to organic dyes. According to the literature, many of the iridium molecular probes used to detect nitroaromatics are ”turn-off” luminescence sensors. Thus, the review describes the current state-of-the-art, its accomplishments, unique challenges, and future directions. Graphical Abstract
{"title":"Phosphorescent Iridium Molecular Materials as Chemosensors for Nitroaromatic Explosives: Recent Advances","authors":"Anjali S, S. B. S., M. Reddy","doi":"10.1080/02603594.2022.2090347","DOIUrl":"https://doi.org/10.1080/02603594.2022.2090347","url":null,"abstract":"ABSTRACT The development of appropriate luminophores for detecting nitroaromatic explosives is a crucial issue for our safety and security. In the past decade, astounding efforts have been made towards the development of phosphorescent iridium probes based on diverse sensing mechanisms for explosive detection. Phosphorescent iridium materials possess unique properties such as long-lived phosphorescence, high quantum efficiency, and modular syntheses that render them as suitable alternatives to organic dyes. According to the literature, many of the iridium molecular probes used to detect nitroaromatics are ”turn-off” luminescence sensors. Thus, the review describes the current state-of-the-art, its accomplishments, unique challenges, and future directions. Graphical Abstract","PeriodicalId":10481,"journal":{"name":"Comments on Inorganic Chemistry","volume":"1 1","pages":"34 - 65"},"PeriodicalIF":5.4,"publicationDate":"2022-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77309374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-15DOI: 10.1080/02603594.2022.2087637
V. Solov'ev, A. Tsivadze
ABSTRACT Linear Free Energy Relationships (LFER) logK j = a⋅logK i between the stability constants (logK) of the Mn+L complexes of ith and jth metal ions Mn+ (Ca2+, Cd2+, Co2+, Cu2+, Fe2+, La3+, Mg2+, Mn2+, Ni2+, Pb2+, Th4+, VO2+, Y3+, Zn2+) with diverse organic ligands (L) in water were analyzed. From these 432 LFER it follows that each metal ion can be described by one parameter - thermodynamic ionic radius r, and the stability constants of two metal ions M i and M j with a ligand L are related by the simple relationship logKj = (ri /rj )logKi . Predictive performance of this relationship was tested on 228 metal ion pairs which were not used for the radii estimations, and the number of ligands varied from 20 to 221 for these metal ion pairs. Root mean squared error RMSE and squared determination coefficient of the logK predictions vary from 0.50 to 2.0 for 186 test sets and from 0.849 to 0.500 for 218 test sets, respectively.
{"title":"Prediction of Stability Constants of metal-ligand Complexes Using Thermodynamic Radii of Metal Ions","authors":"V. Solov'ev, A. Tsivadze","doi":"10.1080/02603594.2022.2087637","DOIUrl":"https://doi.org/10.1080/02603594.2022.2087637","url":null,"abstract":"ABSTRACT Linear Free Energy Relationships (LFER) logK j = a⋅logK i between the stability constants (logK) of the Mn+L complexes of ith and jth metal ions Mn+ (Ca2+, Cd2+, Co2+, Cu2+, Fe2+, La3+, Mg2+, Mn2+, Ni2+, Pb2+, Th4+, VO2+, Y3+, Zn2+) with diverse organic ligands (L) in water were analyzed. From these 432 LFER it follows that each metal ion can be described by one parameter - thermodynamic ionic radius r, and the stability constants of two metal ions M i and M j with a ligand L are related by the simple relationship logKj = (ri /rj )logKi . Predictive performance of this relationship was tested on 228 metal ion pairs which were not used for the radii estimations, and the number of ligands varied from 20 to 221 for these metal ion pairs. Root mean squared error RMSE and squared determination coefficient of the logK predictions vary from 0.50 to 2.0 for 186 test sets and from 0.849 to 0.500 for 218 test sets, respectively.","PeriodicalId":10481,"journal":{"name":"Comments on Inorganic Chemistry","volume":"36 1","pages":"16 - 33"},"PeriodicalIF":5.4,"publicationDate":"2022-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78867622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-12DOI: 10.1080/02603594.2022.2085692
Reem H. Alzard, Lamia A. Siddig, Nada Alhatti, I. Abdallah, Latifa Aljabri, Afra Alblooshi, Ahmed Alzamly
ABSTRACT Titanium dioxide was prepared using titanium-based metal–organic framework (MOF) i.e., NH2-MIL-125(Ti) as a metal precursor. NH2-MIL-125(Ti) was synthesized then calcined at 400 °C, 500 °C, 550 °C, and 600 °C. The properties of NH2-MIL-125(Ti) and produced TiO2 were investigated using various techniques, including powder X-ray diffraction (PXRD), Brunauer–Emmett–Teller (BET), and UV–visible diffuse reflectance spectroscopy (UV–Vis DRS). A scanning electron microscopy (SEM) was used to observe surface morphology and energy-dispersive X-ray spectroscopy (EDX) to analyze elemental composition of prepared samples. PXRD pattern confirms TiO2 anatase phase formation when Ti-MOF was calcined up to 500 °C, whereas the formation of TiO2 rutile phase at calcination temperature of 600 °C. The photocatalytic activities of produced TiO2 photocatalysts were investigated for the cycloaddition reaction of CO2 to propylene oxide.
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Pub Date : 2022-06-05DOI: 10.1080/02603594.2022.2078316
Javad B. M. Parambath, Najrul Hussain, H. Alawadhi, Yeji Park, D. Dionysiou, Changseok Han, Ahmed Abouzeed Mohamed
ABSTRACT Electrocatalytic hydrogen evolution reactions (HER) offer an enduring strategy for hydrogen fuel production and are vital for sustainable energy conversion and storage. To explore efficient and durable HER electrocatalysts, we fabricated gold-aryl nanoparticles (AuNPs-COOH) anchored on graphitic carbon nitride (g-C3N4) sheets by reducing aryldiazonium tetrachloroaurate(III) salt with sodium borohydride at room temperature in water. Two different nanocomposites, AuNPs-COOH-g-C3N4 (H) (higher amount of g-C3N4) and AuNPs-COOH-g-C3N4 (L) (lower amount of g-C3N4) were prepared. Contact angle measurements revealed that the increased surface wettability of the nanocomposites on glass and silicon wafer surfaces compared to pristine g-C3N4. Cyclic voltammetry, electrochemical impedance spectroscopy, double-layer capacitance, linear sweep voltammetry, and chronoamperometry measurements revealed that AuNPs-COOH-g-C3N4 (L) displayed the best HER performance in 0.1 M H2SO4 electrolyte. Overall, nanocomposites exhibited higher electrocatalytic activity compared to bare AuNPs-COOH and pristine g-C3N4 in current density and onset potential values. The AuNPs-COOH-g-C3N4 (L) nanocomposite offered an excellent electrocatalytic activity and displayed a current density of 53.4 mA/cm2 at 0.72 V vs RHE, which is nearly twice compared to bare AuNPs-COOH of 33.1 mA/cm2. In addition, the nanocomposite showed the lowest onset potential of 0.14 V vs RHE compared to 0.26 V and 0.31 V for AuNPs-COOH-g-C3N4 (H) and AuNPs-COOH, respectively.
电催化析氢反应(HER)为氢燃料生产提供了一种持久的策略，对可持续的能量转换和储存至关重要。为了探索高效耐用的HER电催化剂，我们在室温下用硼氢化钠还原四氯酸芳基重氮铵(III)盐，制备了锚定在石墨氮化碳(g-C3N4)片上的金-芳基纳米颗粒(AuNPs-COOH)。制备了两种不同的纳米复合材料AuNPs-COOH-g-C3N4 (H) (g-C3N4用量较高)和AuNPs-COOH-g-C3N4 (L) (g-C3N4用量较低)。接触角测量显示，与原始的g-C3N4相比，纳米复合材料在玻璃和硅晶圆表面的表面润湿性增加。循环伏安法、电化学阻抗法、双层电容法、线性扫描伏安法和计时安培法等测试结果表明，AuNPs-COOH-g-C3N4 (L)在0.1 M H2SO4电解质中表现出最佳的HER性能。总的来说，纳米复合材料在电流密度和起始电位值方面比裸AuNPs-COOH和原始g-C3N4表现出更高的电催化活性。AuNPs-COOH-g- c3n4 (L)纳米复合材料具有优异的电催化活性，在0.72 V vs RHE下电流密度为53.4 mA/cm2，是裸AuNPs-COOH电流密度33.1 mA/cm2的近两倍。此外，与AuNPs-COOH-g- c3n4 (H)和AuNPs-COOH相比，纳米复合材料对RHE的起效电位最低，分别为0.26 V和0.31 V。
{"title":"Graphitic Carbon Nitride Platforms Modified with Gold-Aryl Nanoparticles for Efficient Electrocatalytic Hydrogen Evolution","authors":"Javad B. M. Parambath, Najrul Hussain, H. Alawadhi, Yeji Park, D. Dionysiou, Changseok Han, Ahmed Abouzeed Mohamed","doi":"10.1080/02603594.2022.2078316","DOIUrl":"https://doi.org/10.1080/02603594.2022.2078316","url":null,"abstract":"ABSTRACT Electrocatalytic hydrogen evolution reactions (HER) offer an enduring strategy for hydrogen fuel production and are vital for sustainable energy conversion and storage. To explore efficient and durable HER electrocatalysts, we fabricated gold-aryl nanoparticles (AuNPs-COOH) anchored on graphitic carbon nitride (g-C3N4) sheets by reducing aryldiazonium tetrachloroaurate(III) salt with sodium borohydride at room temperature in water. Two different nanocomposites, AuNPs-COOH-g-C3N4 (H) (higher amount of g-C3N4) and AuNPs-COOH-g-C3N4 (L) (lower amount of g-C3N4) were prepared. Contact angle measurements revealed that the increased surface wettability of the nanocomposites on glass and silicon wafer surfaces compared to pristine g-C3N4. Cyclic voltammetry, electrochemical impedance spectroscopy, double-layer capacitance, linear sweep voltammetry, and chronoamperometry measurements revealed that AuNPs-COOH-g-C3N4 (L) displayed the best HER performance in 0.1 M H2SO4 electrolyte. Overall, nanocomposites exhibited higher electrocatalytic activity compared to bare AuNPs-COOH and pristine g-C3N4 in current density and onset potential values. The AuNPs-COOH-g-C3N4 (L) nanocomposite offered an excellent electrocatalytic activity and displayed a current density of 53.4 mA/cm2 at 0.72 V vs RHE, which is nearly twice compared to bare AuNPs-COOH of 33.1 mA/cm2. In addition, the nanocomposite showed the lowest onset potential of 0.14 V vs RHE compared to 0.26 V and 0.31 V for AuNPs-COOH-g-C3N4 (H) and AuNPs-COOH, respectively.","PeriodicalId":10481,"journal":{"name":"Comments on Inorganic Chemistry","volume":"24 1","pages":"249 - 270"},"PeriodicalIF":5.4,"publicationDate":"2022-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91095158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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