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Metal-Organic Frameworks as bio- and heterogeneous catalyst supports for biodiesel production 金属有机框架作为生物柴油生产的生物和多相催化剂支持
IF 4.1 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2022-12-08 DOI: 10.1515/revic-2022-0014
Yetzin Rodríguez Mejía, Fernando Romero Romero, Murali Venkata Basavanag Unnamatla, Maria Fernanda Ballesteros Rivas, Victor Varela Guerrero
Abstract As biodiesel (BD)/Fatty Acid Alkyl Esters (FAAE) is derived from vegetable oils and animal fats, it is a cost-effective alternative fuel that could complement diesel. The BD is processed from different catalytic routes of esterification and transesterification through homogeneous (alkaline and acid), heterogeneous and enzymatic catalysis. However, heterogeneous catalysts and biocatalysts play an essential role towards a sustainable alternative to homogeneous catalysts applied in biodiesel production. The main drawback is the supporting material. To overcome this, currently, Metal-Organic Frameworks (MOFs) have gained significant interest as supports for catalysts due to their extremely high surface area and numerous binding sites. This review focuses on the advantages of using various MOFs structures as supports for heterogeneous catalysts and biocatalysts for the eco-friendly biodiesel production process. The characteristics of these materials and their fabrication synthesis are briefly discussed. Moreover, we address in a general way basic items ranging from biodiesel synthesis to applied catalysts, giving great importance to the enzymatic part, mainly to the catalytic mechanism in esterification/transesterification reactions. We provide a summary with recommendations based on the limiting factors.
生物柴油(BD)/脂肪酸烷基酯(FAAE)是从植物油和动物脂肪中提取的,是一种经济有效的柴油替代燃料。BD通过均相(碱性和酸性)、多相和酶催化等不同的酯化和酯交换催化途径进行加工。然而,多相催化剂和生物催化剂对生物柴油生产中均相催化剂的可持续替代品起着至关重要的作用。主要的缺点是支撑材料。为了克服这一问题,目前,金属有机框架(mof)由于其极高的表面积和众多的结合位点而成为催化剂的载体,引起了人们的极大兴趣。本文综述了不同mof结构作为多相催化剂和生物催化剂在生态生物柴油生产过程中的优势。简要讨论了这些材料的特点及其制备方法。此外,我们从生物柴油的合成到应用催化剂的基本问题进行了一般性的讨论,其中非常重视酶的部分,主要是酯化/酯交换反应的催化机理。我们提供了一个总结,并根据限制因素提出了建议。
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引用次数: 1
A review on the chemistry of novel platinum chelates based on azo-azomethine ligands 新型偶氮甲亚胺铂螯合物的化学研究进展
IF 4.1 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2022-11-04 DOI: 10.1515/revic-2022-0027
Paritosh Mandal, J. L. Pratihar
Abstract Numerous platinum group metals (PGMs) complexes contain azo-azomethine-based ligands. Azo-azomethine ligands are N-donor ligands that have extended conjugated π-bonded systems and both azo (–N=N–) and aldimine (–C=N–) functions in their structure. Plenty of platinum (Pt) complexes with azo-imine ligands have been prepared and characterized. Various multidentate azo-imine ligands coordinated with different platinum metal substrates afforded structurally diverse platinum chelates. Nonetheless, many azo-imine-based platinum complexes demonstrated a wide range of biological activities, photo-switchable properties, and redox activities. The review encompasses a general overview of platinum complexes with versatile azo-azomethine ligands, their synthetic protocol, spectroscopic and structural features, chemical reactivity, and multipurpose applications in different areas.
摘要许多铂族金属(PGM)配合物含有偶氮甲亚胺基配体。偶氮甲亚胺配体是N-供体配体,具有扩展的共轭π键系统,偶氮(–N=N-)和醛亚胺(–C=N-)在其结构中都具有功能。制备了大量的偶氮亚胺配位铂(Pt)配合物,并对其进行了表征。不同的多齿偶氮亚胺配体与不同的铂金属底物配位,得到结构不同的铂螯合物。尽管如此,许多偶氮亚胺基铂络合物表现出广泛的生物活性、光可切换特性和氧化还原活性。综述了具有多功能偶氮甲亚胺配体的铂配合物、它们的合成方案、光谱和结构特征、化学反应性以及在不同领域的多用途应用。
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引用次数: 0
Recent reports on vanadium based coordination polymers and MOFs 钒基配位聚合物和MOFs的最新报道
IF 4.1 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2022-10-24 DOI: 10.1515/revic-2022-0021
Samik Gupta
Abstract Coordination polymers (CP) and metal-organic frameworks (MOF) have become a topic of immense interest in this century primarily because of the structural diversity that they offer. This structural diversity results in their multifaceted utility in various fields of science and technology such as catalysis, medicine, gas storage or separation, conductivity and magnetism. Their utility inspires a large variety of scientists to engage with them in their scientific pursuit thus creating a buzz around them in the scientific community. Metals capable of forming CPs and MOFs are primarily transition metals. Among them vanadium-based CPs and MOFs demand detailed discussion because of the unique nature of vanadium which makes it stable in many oxidation states and coordination number. Vanadium’s versatility imparts additional structural marvel and usefulness to these CPs and MOFs.
摘要配位聚合物(CP)和金属有机框架(MOF)在本世纪已成为一个备受关注的话题,主要是因为它们提供的结构多样性。这种结构多样性导致了它们在催化、医学、气体储存或分离、导电性和磁性等科学技术领域的多方面应用。它们的效用激发了各种各样的科学家参与他们的科学追求,从而在科学界引起了轰动。能够形成CP和MOF的金属主要是过渡金属。其中,钒基CP和MOFs需要详细讨论,因为钒的独特性质使其在许多氧化态和配位数中稳定。钒的多功能性赋予了这些CP和MOF额外的结构奇迹和实用性。
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引用次数: 0
Iron metabolism: pathways and proteins in homeostasis 铁代谢:稳态中的途径和蛋白质
IF 4.1 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2022-10-24 DOI: 10.1515/revic-2022-0031
E. Arora, Vibha Sharma
Abstract Iron is essential to human survival. The biological role and trafficking of this trace essential inorganic element which is also a potential toxin is constantly being researched and unfolded. Vital for oxygen transport, DNA synthesis, electron transport, neurotransmitter biosynthesis and present in numerous other heme and non-heme enzymes the physiological roles are immense. Understanding the molecules and pathways that regulate this essential element at systemic and cellular levels are of importance in improving therapeutic strategies for iron related disorders. This review highlights the progress in understanding the metabolism and trafficking of iron along with the pathophysiology of iron related disorders.
铁对人类生存至关重要。这种微量必需无机元素也是一种潜在的毒素,其生物学作用和贩运作用正在不断研究和展开。对氧运输、DNA合成、电子运输、神经递质生物合成至关重要,并且存在于许多其他血红素和非血红素酶中,其生理作用是巨大的。了解在系统和细胞水平上调节这种基本元素的分子和途径对于改善铁相关疾病的治疗策略至关重要。这篇综述强调了在理解铁的代谢和运输以及铁相关疾病的病理生理学方面的进展。
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引用次数: 0
Chemistry of azo-imine based palladium complexes: a brief review 偶氮亚胺基钯配合物的化学研究进展
IF 4.1 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2022-10-03 DOI: 10.1515/revic-2022-0017
Paritosh Mandal, J. L. Pratihar
Abstract This paper provides a general overview of palladium complexes incorporating numerous multidentate azo-imine ligands, their structural diversity, synthetic protocol, interesting properties such as redox properties, biological activity and their further application on C – N coupling reactions, C – C cross-coupling reactions (e.g., Suzuki and Heck) and catalytic activity on different organic transformations. A detailed literature survey revealed that no brief review has yet been published on the azo-azomethine-based palladium complex. Therefore, the present review incorporates the research undertaken on the synthetic strategies and coordinating behaviour of various azo-imine ligands with palladium metal centre and a few important properties of metal complexes.
摘要本文综述了含多齿偶氮亚胺配体的钯配合物的结构多样性、合成方法、氧化还原性等有趣性质、生物活性及其在C - N偶联反应、C - C交叉偶联反应(如Suzuki和Heck)和不同有机转化催化活性方面的进一步应用。详细的文献调查显示,目前还没有关于偶氮-偶氮甲醚基钯配合物的简要综述。因此,本文综述了以钯为中心的各种偶氮亚胺配体的合成策略和配位行为以及金属配合物的一些重要性质的研究。
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引用次数: 0
Main group cyanides: from hydrogen cyanide to cyanido-complexes 主要氰化物:从氰化氢到氰化物络合物
IF 4.1 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2022-09-21 DOI: 10.1515/revic-2021-0044
A. Schulz, Jonas Surkau
Abstract Homoleptic cyanide compounds exist of almost all main group elements. While the alkali metals and alkaline earth metals form cyanide salts, the cyanides of the lighter main group elements occur mainly as covalent compounds. This review gives an overview of the status quo of main group element cyanides and cyanido complexes. Information about syntheses are included as well as applications, special substance properties, bond lengths, spectroscopic characteristics and computations. Cyanide chemistry is presented mainly from the field of inorganic chemistry, but aspects of chemical biology and astrophysics are also discussed in relation to cyano compounds.
摘要几乎所有的主族元素都存在同质氰化物化合物。当碱金属和碱土金属形成氰化物盐时,较轻的主族元素的氰化物主要以共价化合物的形式出现。本文综述了主要族元素氰化物和氰化物配合物的研究现状。包括有关合成的信息以及应用、特殊物质性质、键长、光谱特性和计算。氰化物化学主要从无机化学领域介绍,但也讨论了化学生物学和天体物理学方面与氰基化合物的关系。
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引用次数: 1
Real scenario of metal ion sensor: is conjugated polymer helpful to detect hazardous metal ion 金属离子传感器的真实场景:是有助于检测有害金属离子的共轭聚合物
IF 4.1 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2022-09-21 DOI: 10.1515/revic-2022-0006
Pushparani Selvakumar Umabharathi, S. Karpagam
Abstract Metal ions from natural and anthropogenic sources cause pollution to society and the environment is major concern in the present scenario. The deposition and contamination of metal ions in soil and water affect the biogeochemical cycles. Thus, it threatens the everyday life of living and non-living organisms. Reviews on the detection of metal ions through several techniques (Analytical methods, electrochemical techniques, and sensors) and materials (Nanoparticles, carbon dots (quantum dots), polymers, chiral molecules, metal-organic framework, carbon nanotubes, etc.) are addressed separately in the present literature. This review reveals the advantages and disadvantages of the techniques and materials for metal ion sensing with crucial factors. Furthermore, it focus on the capability of conjugated polymers (CPs) as metal ion sensors able to detect/sense hazardous metal ions from environmental samples. Six different routes can synthesize this type of CPs to get specific properties and better metal ion detecting capability in vast research areas. The metal ion detection by CP is time-independent, simple, and low cost compared to other materials/techniques. This review outlines recent literature on the conjugated polymer for cation, anion, and dual ion sensors. Over the last half decades published articles on the conjugated polymer are discussed and compared.
摘要自然和人为来源的金属离子对社会和环境造成污染是当前情况下的主要问题。金属离子在土壤和水中的沉积和污染影响着生物地球化学循环。因此,它威胁着生物体和非生物体的日常生活。本文献分别介绍了通过几种技术(分析方法、电化学技术和传感器)和材料(纳米颗粒、碳点(量子点)、聚合物、手性分子、金属有机框架、碳纳米管等)检测金属离子的综述。这篇综述揭示了金属离子传感技术和材料的优缺点以及关键因素。此外,它还关注共轭聚合物(CP)作为金属离子传感器的能力,能够检测/感知环境样品中的有害金属离子。六种不同的路线可以合成这种类型的CP,以获得特定的性能和更好的金属离子检测能力,在广阔的研究领域。与其他材料/技术相比,CP的金属离子检测是时间无关的、简单且成本低的。这篇综述概述了用于阳离子、阴离子和双离子传感器的共轭聚合物的最新文献。对过去五年来发表的关于共轭聚合物的文章进行了讨论和比较。
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引用次数: 1
The use of metal-organic frameworks as heterogeneous catalysts 金属-有机骨架作为非均相催化剂的应用
IF 4.1 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2022-09-19 DOI: 10.1515/revic-2022-0020
V. Larina, O. Babich, Anastasia Zhikhreva, S. Ivanova, Eugene Chupakhin
Abstract This article presents an overview of some of the available research studies of MOFs as catalysts. Catalytic studies of magnetic iron oxide nanoparticles with modified surfaces, MOFs with precious metals such as palladium, platinum, and silver, with zirconium, hafnium, copper, alkaline earth metals, lanthanides are generalized. The studies of the catalytic activity of micro- and mesoporous MOF structures are described.
摘要本文概述了MOFs作为催化剂的一些可用研究。综述了具有改性表面的磁性氧化铁纳米颗粒、具有贵金属(如钯、铂和银)的MOFs、具有锆、铪、铜、碱土金属和镧系元素的催化研究。介绍了微介孔MOF结构的催化活性研究。
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引用次数: 1
Transition metal complexes with strong and long-lived excited state absorption: from molecular design to optical power limiting behavior 具有强而长寿命激发态吸收的过渡金属配合物:从分子设计到光功率限制行为
IF 4.1 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2022-08-22 DOI: 10.1515/revic-2022-0013
H. Su, Lai Hu, Senqiang Zhu, Jiapeng Lu, Jinyang Hu, Rui Liu, Hongjun Zhu
Abstract Transition metal complexes (TMCs) with strong and long-lived excited state absorption (ESA) usually exhibit high-performance optical power limiting (OPL) response. Several techniques, such as transmission vs. incident fluence curves and Z-scan have been widely used to assess the OPL performance of typical TMCs. The OPL performance of TMCs is highly molecular structure-dependent. Special emphasis is placed on the structure-OPL response relationships of Pt(II), Ir(III), Ru(II), and other metal complexes. This review concludes with perspectives on the current status of OPL field, as well as opportunities that lie just beyond its frontier.
摘要具有强、长寿命激发态吸收(ESA)的过渡金属配合物(TMCs)通常表现出高性能的光功率限制(OPL)响应。一些技术,如透射与入射通量曲线和Z扫描,已被广泛用于评估典型TMC的OPL性能。TMCs的OPL性能高度依赖于分子结构。特别强调了Pt(II)、Ir(III)、Ru(Ⅱ)和其他金属配合物的结构-OPL响应关系。这篇综述的结尾是对OPL领域现状的展望,以及其前沿之外的机遇。
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引用次数: 1
Recent advances on structural, thermal, vibrational, optical, phase transitions, and catalysis properties of alkylenediammonium halogenometallate materials (Metal: Bi, Sb, Halogen: Cl, Br, I) 卤代金属酸亚烯二铵材料(金属:Bi, Sb,卤素:Cl, Br, I)的结构、热、振动、光学、相变和催化性能研究进展
IF 4.1 3区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR Pub Date : 2022-07-07 DOI: 10.1515/revic-2022-0012
A. Ouasri
Abstract This paper aims to review recent advances on synthesis, crystal structures, thermal, spectroscopic, phase transitions, optical, dielectric, and catalysis properties of hydrate and anhydrous alkylenediammonium halogenometallates materials (Metal: Bi, Sb, Halogen: Cl, Br, I). These hybrid materials present rich structural diversities based on octahedra forming infinite zero dimensional, 1-dimensional chains, 2-dimensional layers, discrete bioctahedra, and discrete tetramer units. The effect, contribution and importance of hydrogen bonding N–H … X (X: Cl, Br, I) are reviewed in terms of solid state relationship. Particularly, a comparative study is made on hydrate and anyhdrous aliphatic chlorobismuthates with alkylenediammonium +NH3(CH2) n NH3+ based on structural data and V/Z variation with (CH2) n chains (n = 2–8, 12), and variation of BiCl63− Raman frequencies modes versus (CH2) n chains (n = 3–8). Hydrate salts with (n = 3, 12) consist of isolated BiCl63− anions and two water molecules, against others ones with isolated anionic chains [BiCl52−] n or Bi2Cl104− dimers, formed by distorted octahedra BiCl63− sharing corners, vices or edges. The reviewed optical and electronic band gaps suggested interesting compounds with band gaps (1.85–2.4 eV), as suitable materials in optoelectronic properties, photoactive layer in solution-processed photovoltaics, and bio-imaging or photovoltaic applications. It was concluded that iodobismuthate salts have generally the lowest bands gap, compared to that of bromo and chlorobismuthate slats. Catalysis proprieties are reviewed n fast (RhB) degradation under dark conditions for (C4N2H7)4Bi2Cl10, (C5H9N2)BiI4, and {(H-BPA)4·[(BiI6)I13]·2I3} n , and in organic salts synthesis under solvent-free conditions. Herein NH3(CH2) n NH3BiCl5 (n = 5–7) salts were used as highly efficient catalysts, which is a novel tendency in chlorobismuthate researchs in the green chemistry field.
摘要本文综述了水合物和无水亚烷基卤代二铵材料(金属:Bi,Sb,卤素:Cl,Br,I)的合成、晶体结构、热、光谱、相变、光学、介电和催化性能的最新进展。这些杂化材料基于八面体呈现出丰富的结构多样性,八面体形成无限的零维、一维链、二维层、离散的生物八面体和离散的四聚体单元。从固态关系的角度综述了氢键N–H…X(X:Cl,Br,I)的作用、贡献和重要性。特别是,基于结构数据和(CH2)n链的V/Z变化(n=2–8,12),以及BiCl63−拉曼频率模式与(CH2。具有(n=3,12)的水合物盐由分离的BiCl63−阴离子和两个水分子组成,而其他分子则具有分离的阴离子链[BiCl52−]n或Bi2Cl104−二聚体,由扭曲的八面体BiCl63–共享角、副或边缘形成。综述的光学和电子带隙表明,具有带隙(1.85–2.4 eV)的有趣化合物是光电子性能、溶液处理光伏中的光活性层以及生物成像或光伏应用中的合适材料。得出的结论是,与溴和氯铋酸盐相比,碘铋酸盐通常具有最低的带隙。综述了(C4N2H7)4Bi2Cl10、(C5H9N2)BiI4和{(H-BPA)4·[(BiI6)I13]·2I3}n在黑暗条件下的快速(RhB)降解以及在无溶剂条件下的有机盐合成中的催化特性。本文使用NH3(CH2)n-NH3BiCl5(n=5–7)盐作为高效催化剂,这是绿色化学领域氯铋酸盐研究的一个新趋势。
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引用次数: 1
期刊
Reviews in Inorganic Chemistry
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