Inorganica Chimica Acta最新文献

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Fabrication of cu(II)-coordination polymer and its Mn-doped composites for luminescent detection of Novaluron pesticide, La3+ and TEA

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta

Pub Date : 2025-02-19 DOI: 10.1016/j.ica.2025.122599

Anat Ram Sidar , Musheer Ahmad , Nazrul Haq , Astakala Anil Kumar , Kafeel Ahmad Siddiqui

A new copper-based coordination polymer, [Cu₃(Timb)₂(OA)₂·6(H₂O)]ₙ (1), was synthesized using 1,3,5-tris[(1H-imidazol-1-yl)methyl]benzene (Timb) and orotic acid (OA) ligands. The structure of (1) was characterized through single-crystal X-ray diffraction (SCXRD), Thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX), and powder X-ray diffraction (PXRD). To enhance its luminescent properties, the polymer was doped with MnO₂, MnO@Cu-CP-2 (2), which was further characterized by FTIR, PXRD, TGA, and SEM-EDX. Both the undoped (1) and doped (2) materials exhibited promising luminescent properties for detecting triethylamine (TEA), La³⁺ ions, MnO₄⁻, and hazardous pesticides such as Novaluron (NVR). Detection limits for (1) were determined to be 0.1405 ppm, 0.2321 ppm, 0.6601 ppm, and 0.7242 ppm for TEA, La³⁺, MnO₄⁻, and NVR, respectively. Upon MnO₂ doping, (2) demonstrated enhanced luminescent sensing capabilities, with detection limits of 0.4067 ppm, 0.6625 ppm, 0.9363 ppm, and 0.9862 ppm for the same analytes. The study also provides detailed insights into the luminescence mechanisms and the role of MnO₂ incorporation in enhancing the sensing performance, underscoring the potential of (2) for superior analytes detection compared to the undoped polymer.

{"title":"Fabrication of cu(II)-coordination polymer and its Mn-doped composites for luminescent detection of Novaluron pesticide, La3+ and TEA","authors":"Anat Ram Sidar , Musheer Ahmad , Nazrul Haq , Astakala Anil Kumar , Kafeel Ahmad Siddiqui","doi":"10.1016/j.ica.2025.122599","DOIUrl":"10.1016/j.ica.2025.122599","url":null,"abstract":"<div><div>A new copper-based coordination polymer, [Cu₃(Timb)₂(OA)₂·6(H₂O)]ₙ (1), was synthesized using 1,3,5-tris[(1H-imidazol-1-yl)methyl]benzene (Timb) and orotic acid (OA) ligands. The structure of (1) was characterized through single-crystal X-ray diffraction (SCXRD), Thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX), and powder X-ray diffraction (PXRD). To enhance its luminescent properties, the polymer was doped with MnO2, MnO@Cu-CP-2 (2), which was further characterized by FTIR, PXRD, TGA, and SEM-EDX. Both the undoped (1) and doped (2) materials exhibited promising luminescent properties for detecting triethylamine (TEA), La3+ ions, MnO4−, and hazardous pesticides such as Novaluron (NVR). Detection limits for (1) were determined to be 0.1405 ppm, 0.2321 ppm, 0.6601 ppm, and 0.7242 ppm for TEA, La3+, MnO4−, and NVR, respectively. Upon MnO2 doping, (2) demonstrated enhanced luminescent sensing capabilities, with detection limits of 0.4067 ppm, 0.6625 ppm, 0.9363 ppm, and 0.9862 ppm for the same analytes. The study also provides detailed insights into the luminescence mechanisms and the role of MnO2 incorporation in enhancing the sensing performance, underscoring the potential of (2) for superior analytes detection compared to the undoped polymer.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"580 ","pages":"Article 122599"},"PeriodicalIF":2.7,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143465401","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}

引用次数: 0

Synthesis of a dinuclear bis(μ-tetrazolato)dicobalt(III) Schiff base complex via tandem 1,3-dipolar cycloaddition: Formation of a supramolecular 1D polymer by the combination of the H-bonds, π-stacking, and π-hole interactions

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta

Pub Date : 2025-02-18 DOI: 10.1016/j.ica.2025.122595

Susovan Bera , Antonio Frontera , Shouvik Chattopadhyay

A dinuclear and bis(μ-tetrazolato) bridged cobat (III) Schiff base complex, [(μ-N₃)(μ-MTZ){CoN₃(L)}₂] {where HL = ((2-(dimethylamino)ethylimino)methyl)-4-bromophenol, and HMTZ = 5-methyl tetrazolate}, has been synthesized by in situ 1,3-dipolar cycloaddition and characterized by elemental and spectral analysis, and by X-ray crystallography. The complex crystallizes in orthorhombic space group Pna2₁. The complex features a double μ-NN’-tetrazolato bridged dicobalt(III) structure, in which each cobalt(III) is octahedral being coordinated by a depronated NNO-donor terdentate Schiff base (L⁻) in meridional fashion, one terminal azide, one end-on bridging azide and one nitrogen atom of the bridging (MTZ)⁻. The ability of the three azide ligands to participate in H-bonding interactions as acceptor is analyzed using DFT calculations and several computational tools including MEP, QTAIM and NCIplot.

通过原位 1,3-二极环加成法合成了一种双核双（μ-四唑）桥接钴酸酯（III）希夫碱配合物 [(μ-N3)(μ-MTZ){CoN3(L)}2] { 其中 HL = ((2-(dimethylamino)ethylimino)methyl)-4-bromophenol、和 HMTZ = 5-甲基四唑醇}，通过原位 1,3-二极环加成法合成，并通过元素分析、光谱分析和 X 射线晶体学进行了表征。该复合物在正交空间群 Pna21 中结晶。该复合物具有双μ-NN'-四氮唑桥联的二钴(III)结构，其中每个钴(III)都是八面体，由一个去质子化的 NNO 供体三齿席夫碱 (L-)、一个末端叠氮化物、一个末端桥联叠氮化物和一个桥联 (MTZ)- 的氮原子以经向方式配位。利用 DFT 计算和多种计算工具（包括 MEP、QTAIM 和 NCIplot）分析了这三种叠氮配体作为受体参与 H 键相互作用的能力。

{"title":"Synthesis of a dinuclear bis(μ-tetrazolato)dicobalt(III) Schiff base complex via tandem 1,3-dipolar cycloaddition: Formation of a supramolecular 1D polymer by the combination of the H-bonds, π-stacking, and π-hole interactions","authors":"Susovan Bera , Antonio Frontera , Shouvik Chattopadhyay","doi":"10.1016/j.ica.2025.122595","DOIUrl":"10.1016/j.ica.2025.122595","url":null,"abstract":"<div><div>A dinuclear and bis(μ-tetrazolato) bridged cobat (III) Schiff base complex, [(μ-N3)(μ-MTZ){CoN3(L)}2] {where HL = ((2-(dimethylamino)ethylimino)methyl)-4-bromophenol, and HMTZ = 5-methyl tetrazolate}, has been synthesized by in situ 1,3-dipolar cycloaddition and characterized by elemental and spectral analysis, and by X-ray crystallography. The complex crystallizes in orthorhombic space group Pna21. The complex features a double μ-NN’-tetrazolato bridged dicobalt(III) structure, in which each cobalt(III) is octahedral being coordinated by a depronated NNO-donor terdentate Schiff base (L−) in meridional fashion, one terminal azide, one end-on bridging azide and one nitrogen atom of the bridging (MTZ)−. The ability of the three azide ligands to participate in H-bonding interactions as acceptor is analyzed using DFT calculations and several computational tools including MEP, QTAIM and NCIplot.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"580 ","pages":"Article 122595"},"PeriodicalIF":2.7,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480089","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}

引用次数: 0

Recent strategies and developments in the hydroboration of N-Heteroarenes mediated by transition and rare-earth metal complexes 过渡金属和稀土金属络合物介导的 N-异戊二烯氢硼化合反应的最新策略和进展

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta

Pub Date : 2025-02-15 DOI: 10.1016/j.ica.2025.122594

Priyanka Velmurugan , Moris S. Eisen , Tapas Ghatak

The dearomatization reactions of N-heteroarenes have emerged as crucial chemical transformations in the fields of organic synthesis and medicinal chemistry. These reactions permit the formation of aza compounds, including dihydropyridines, which serve as versatile synthetic building blocks and structural motifs for various bioactive natural products and pharmaceuticals. Over the past few years, dearomative hydroboration has grown into a powerful alternative to traditional reduction methods for N-heteroarenes. This option has demonstrated exceptional selectivity and a high tolerance for different functional groups, indicating great promise. This review provides an emerging overview of selective dearomative hydroboration reactions of N-heterocycles, including pyridines and quinolines. This review encompasses the period from 2014 to the present, examining 31 highly effective catalytic systems that feature d- and f-block metal complexes.

引用次数: 0

A highly cytotoxic Pd(II) saccharinate complex with tris(2-pyridylmethyl)amine acting through mitochondrial and ROS-induced DNA damage

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta

Pub Date : 2025-02-13 DOI: 10.1016/j.ica.2025.122590

Ceyda Icsel , Seyma Aydinlik , Muhittin Aygun , Veysel T. Yilmaz

A novel Pd(II) complex containing saccharinate (sac) and tris(2-pyridylmethyl)amine (tpma) [Pd (sac)(tpma)](sac)⋅1.5H₂O was synthesized and characterized by IR, ESI-MS, NMR spectroscopic methods, DTA/TG thermal analysis methods and single-crystal X-ray diffraction.

The cationic Pd(II) complex displayed a distorted square planar coordination geometry with a N atom of sac and three N atoms of tpma, while another sac remained outside the coordination sphere as a counter ion. The sulforhodamine B (SRB) cell viability assay showed that the Pd(II) complex was found to be highly cytotoxic against four human cancer cell lines A549 (lung), HT29 (colon), MCF7 (breast), and LNCaP (prostate) in comparison with cisplatin. The complex demonstrated a remarkable selectivity toward MCF7 cells. Mechanistic studies indicated that the complex induced apoptosis in MCF7 cells based on annexin V/PI and caspase 3/7 assays. In addition, significant mitochondrial depolarization and increased intracellular ROS (reactive oxygen species) generation were observed in MCF7 cells exposed to the Pd(II) complex. The complex also caused ROS-induced DNA double strand breaks as evidenced by the γ-H2AX assay.

{"title":"A highly cytotoxic Pd(II) saccharinate complex with tris(2-pyridylmethyl)amine acting through mitochondrial and ROS-induced DNA damage","authors":"Ceyda Icsel , Seyma Aydinlik , Muhittin Aygun , Veysel T. Yilmaz","doi":"10.1016/j.ica.2025.122590","DOIUrl":"10.1016/j.ica.2025.122590","url":null,"abstract":"<div><div>A novel Pd(II) complex containing saccharinate (sac) and tris(2-pyridylmethyl)amine (tpma) [Pd (sac)(tpma)](sac)⋅1.5H2O was synthesized and characterized by IR, ESI-MS, NMR spectroscopic methods, DTA/TG thermal analysis methods and single-crystal X-ray diffraction.</div><div>The cationic Pd(II) complex displayed a distorted square planar coordination geometry with a N atom of sac and three N atoms of tpma, while another sac remained outside the coordination sphere as a counter ion. The sulforhodamine B (SRB) cell viability assay showed that the Pd(II) complex was found to be highly cytotoxic against four human cancer cell lines A549 (lung), HT29 (colon), MCF7 (breast), and LNCaP (prostate) in comparison with cisplatin. The complex demonstrated a remarkable selectivity toward MCF7 cells. Mechanistic studies indicated that the complex induced apoptosis in MCF7 cells based on annexin V/PI and caspase 3/7 assays. In addition, significant mitochondrial depolarization and increased intracellular ROS (reactive oxygen species) generation were observed in MCF7 cells exposed to the Pd(II) complex. The complex also caused ROS-induced DNA double strand breaks as evidenced by the γ-H2AX assay.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"580 ","pages":"Article 122590"},"PeriodicalIF":2.7,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143429354","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}

引用次数: 0

Synthesis and biological assay of biopolymeric chitosan functionalized by phosphoramidic segment P(O)[NH-3Py]2 and its Cu(II), Ni(II) and Hg(II) complexes

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta

Pub Date : 2025-02-13 DOI: 10.1016/j.ica.2025.122593

Zeinab Albobaledi , Atekeh Tarahhomi , Ali Khaleghian , Negar Sarmadi

Biopolymeric chitosan-phosphoramide (CPA) and its complexes of Cu(II), Ni(II) and Hg(II) were synthesized and characterized by techniques of FT-IR, elemental analysis (CHN), thermogravimetric analysis (TGA), powder X-ray diffraction (PXRD) and scanning electron microscope (SEM). The cytotoxicity of these compounds against breast MDA-MB-231 cell lines was assessed by MTT assay, where the CPA-Hg(II) complex with an IC50 of 95 ± 2 nM illustrated significant anticancer activity. Apoptotic cells were also studied by acridine orange/ethidium bromide (AO/EB) staining introducing the CPA-Hg(II) complex as a good agent to enhance apoptosis in MDA-MB-231 cell lines. Finally, the biological assays performed in this study show that CPA and its complexes exhibit a higher inhibition of cancer compared with chitosan, especially the CPA-Hg(II) and CPA-Cu(II) complexes.

引用次数: 0

A two-dimensional mixed ligands based coordination polymer of cadmium: Synthesis, single crystal structure and luminescence quenching based sensing behaviors towards Fe3+, Cr3+, Al3+ ions and TNP in aqueous phase

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta

Pub Date : 2025-02-13 DOI: 10.1016/j.ica.2025.122592

Priyanka Manna, Akash Kumar Chandra, Partha Mahata

A new Cd (II)-based compound [Cd(BTCH)(L)] (BTCH = di-anionic 1,3,5-benzene tricarboxylic acid and L = 2,4,5-tri-4-pyridyl-1H-imidazole), 1, has been synthesized by hydrothermal method. The structure determined by single-crystal X-ray diffraction revealed two dimensional extended assemblies based on connectivity of Cd²⁺ ions with two ligands. The presence of one free carboxylic acid groups of each BTCH ligand and one non-bonded pyridine ring of each L ligand makes the two-dimensional layer structure stabilized through the hydrogen bond interactions. The compound has been characterized by powder X-ray diffraction, Fourier transform infrared (FTIR) spectroscopy and thermogravimetric analysis (TGA). Aqueous dispersion of compound 1 showed emission at 400 nm upon excitation at 300 nm. The compound 1 also exhibited photoluminescence-based sensing behaviors towards Fe³⁺, Al³⁺ and Cr³⁺ ions in aqueous medium based on luminescence quenching effect. However, photoluminescence studies in presence of other common metal ions showed either negligible quenching effect or moderate to low turn on effect for Ni²⁺, K⁺, Zn²⁺, Cd²⁺ Cu²⁺, Ca²⁺, Mn²⁺, Na⁺, Co²⁺, Fe²⁺, Pb²⁺, Mg²⁺ in aqueous. The limit of detection for Fe³⁺, Al³⁺, Cr³⁺ ions are 0.568 μM, 1.721 μM and 0.840 μM respectively. Compound 1 also showed significant quenching effect in the presence of 2,4,6-trinitrophenol (TNP) with detection limit of 0.302 μM.

{"title":"A two-dimensional mixed ligands based coordination polymer of cadmium: Synthesis, single crystal structure and luminescence quenching based sensing behaviors towards Fe3+, Cr3+, Al3+ ions and TNP in aqueous phase","authors":"Priyanka Manna, Akash Kumar Chandra, Partha Mahata","doi":"10.1016/j.ica.2025.122592","DOIUrl":"10.1016/j.ica.2025.122592","url":null,"abstract":"<div><div>A new Cd (II)-based compound [Cd(BTCH)(L)] (BTCH = di-anionic 1,3,5-benzene tricarboxylic acid and L = 2,4,5-tri-4-pyridyl-1H-imidazole), 1, has been synthesized by hydrothermal method. The structure determined by single-crystal X-ray diffraction revealed two dimensional extended assemblies based on connectivity of Cd2+ ions with two ligands. The presence of one free carboxylic acid groups of each BTCH ligand and one non-bonded pyridine ring of each L ligand makes the two-dimensional layer structure stabilized through the hydrogen bond interactions. The compound has been characterized by powder X-ray diffraction, Fourier transform infrared (FTIR) spectroscopy and thermogravimetric analysis (TGA). Aqueous dispersion of compound 1 showed emission at 400 nm upon excitation at 300 nm. The compound 1 also exhibited photoluminescence-based sensing behaviors towards Fe3+, Al3+ and Cr3+ ions in aqueous medium based on luminescence quenching effect. However, photoluminescence studies in presence of other common metal ions showed either negligible quenching effect or moderate to low turn on effect for Ni2+, K+, Zn2+, Cd2+ Cu2+, Ca2+, Mn2+, Na+, Co2+, Fe2+, Pb2+, Mg2+ in aqueous. The limit of detection for Fe3+, Al3+, Cr3+ ions are 0.568 μM, 1.721 μM and 0.840 μM respectively. Compound 1 also showed significant quenching effect in the presence of 2,4,6-trinitrophenol (TNP) with detection limit of 0.302 μM.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"580 ","pages":"Article 122592"},"PeriodicalIF":2.7,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454268","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}

引用次数: 0

Improving the hydrolase-like activity of a lanthanum(III) complex through second coordination sphere

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta

Pub Date : 2025-02-11 DOI: 10.1016/j.ica.2025.122588

Carlos A. Lucecki , Daniele C. Durigon , Hernán Terenzi , Adailton J. Bortoluzzi , Ademir Neves , Rosely A. Peralta

In this study, we present a new La(III) complex (2) that demonstrates the ability to catalyze the hydrolysis of 2,4-bis(dinitrophenyl)phosphate (2,4–BDNPP), 2,4-dinitrophenylphosphate (2,4–DNPP), and plasmid DNA. By modulating the second coordination sphere in 2, we were able to independently monitor both mono- and diester hydrolysis. Kinetic studies revealed a 7-fold enhancement in the diesterase performance of 2 relatives to the bare complex (1) and ca 30,000 times the uncatalyzed reaction. Data also indicate that 2 dissociates in solution to yield a binuclear complex, which possesses superior activity compared to its mononuclear counterpart. Finally, DNA assays further confirmed a high cleavage rate promoted by the catalyst. Electrospray ionization mass spectrometry (ESI–MS), potentiometric titration, and kinetic studies were instrumental in identifying catalytically active species and proposing reaction mechanisms.

{"title":"Improving the hydrolase-like activity of a lanthanum(III) complex through second coordination sphere","authors":"Carlos A. Lucecki , Daniele C. Durigon , Hernán Terenzi , Adailton J. Bortoluzzi , Ademir Neves , Rosely A. Peralta","doi":"10.1016/j.ica.2025.122588","DOIUrl":"10.1016/j.ica.2025.122588","url":null,"abstract":"<div><div>In this study, we present a new La(III) complex (2) that demonstrates the ability to catalyze the hydrolysis of 2,4-bis(dinitrophenyl)phosphate (2,4–BDNPP), 2,4-dinitrophenylphosphate (2,4–DNPP), and plasmid DNA. By modulating the second coordination sphere in 2, we were able to independently monitor both mono- and diester hydrolysis. Kinetic studies revealed a 7-fold enhancement in the diesterase performance of 2 relatives to the bare complex (1) and ca 30,000 times the uncatalyzed reaction. Data also indicate that 2 dissociates in solution to yield a binuclear complex, which possesses superior activity compared to its mononuclear counterpart. Finally, DNA assays further confirmed a high cleavage rate promoted by the catalyst. Electrospray ionization mass spectrometry (ESI–MS), potentiometric titration, and kinetic studies were instrumental in identifying catalytically active species and proposing reaction mechanisms.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"579 ","pages":"Article 122588"},"PeriodicalIF":2.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421896","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}

引用次数: 0

DNA and gold(III) complexes with nitrogen-containing ligands

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta

Pub Date : 2025-02-11 DOI: 10.1016/j.ica.2025.122591

Igor V. Mironov, Viktoria Yu Kharlamova

The interaction of four gold(III) complexes with N-containing polydentate ligands – Au (bipy)(OH)₂⁺, Au(phen)(OH)₂⁺, Au(C₉H₁₉N₄)²⁺, Au(C₁₄H₂₂N₄)⁺ and one gold(I) complex Au(GSH)₂³⁻ – with salmon sperm DNA in an aqueous solution at 25 °C, pH 7.4, 0.1 M NaCl was studied. In the UV spectra of the complexes in the presence of DNA, no changes were observed compared to the spectra of solutions without DNA, indicating the absence of formation of new chemical bonds. In the fluorescence spectra of solutions containing DNA and ethidium bromide, a noticeable decrease in intensity was observed only for the macrocyclic unsaturated complex Au(C₁₄H₂₂N₄)⁺. For other complexes, the changes were insignificant, i.e., they do not intercalate into DNA. It was also shown that the presence of DNA does not affect the redox interaction with glutathione of the studied gold(III) complexes.

引用次数: 0

Aggregation induced phosphorescence and circularly polarized luminescence of Pt(N^N)Cl2 enantiomers

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta

Pub Date : 2025-02-08 DOI: 10.1016/j.ica.2025.122589

Xiaoqin Zhou, Xuewei Su, Jiajie Liu, Xiaoying Peng, Meixia Li, Fuhao Chen, Xunfu Zhou, Wangen Miao

A enantiopure complexes R/S-Pt(N^N)Cl₂ have been synthesized. This complex exhibited aggregation-induced emission in mixed solvet and stong emission at 660 nm with quatun yield Φ_PL of 35.7 % observed for its aggregated powder, due to strong Pt···Pt and π-π stacking interactions upon aggregation. Moreover, complex showed and circularly polarized luminescence with a g_lum value of up to 0.004.

引用次数: 0

Harnessing the light: The role of Polyoxometalates porphyrin based metal organic framework in CO2 reduction

IF 2.7 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Inorganica Chimica Acta

Pub Date : 2025-02-08 DOI: 10.1016/j.ica.2025.122586

Taghrid S. Alomar , Muhammad Junaid , Muhammad Nadeem , Najla AlMasoud , Amal A. Al-wallan , Hafiz Muhammad Asif , Zeinhom M. El-Bahy

The Photocatalytic reduction of CO₂ to formic acid represents a promising strategy for mitigating the CO₂ emission. In the current study, we use the Metal organic framework (MOFs) namely (MOF@VP) incorporated with Zn (II) and redox-active Vanadium centers V^(V)/V^(VI) for CO₂ reduction. Thermogravimetric analysis (TGA) and FT-IR spectroscopy confirmed efficient CO₂ adsorption with a maximum adsorption capacity of 0.020 mmol/g and a desorption rate of 20 %. The Photocatalytic CO₂ reduction mechanism was investigated, demonstrating that MOF@VP facilitates the conversion of CO₂ to formic acid via electron transfer with the TEOA (Tri-ethanolamine) as a sacrificial reagent. Cyclic voltammetry revealed enhanced electrochemical activity in the presence of CO₂ further supporting the catalytic reduction mechanism. GC–MS analysis confirmed the formation of formic acid as a dominant product. The stability and Regeneration tests showed that the MOF@VP retained its efficiency and thermal stability after multiple cycles. These findings highlight the potential of using MOF@VP as a robust and efficient catalyst for CO₂ reduction, addressing key challenges in catalyst performance and longevity.

{"title":"Harnessing the light: The role of Polyoxometalates porphyrin based metal organic framework in CO2 reduction","authors":"Taghrid S. Alomar , Muhammad Junaid , Muhammad Nadeem , Najla AlMasoud , Amal A. Al-wallan , Hafiz Muhammad Asif , Zeinhom M. El-Bahy","doi":"10.1016/j.ica.2025.122586","DOIUrl":"10.1016/j.ica.2025.122586","url":null,"abstract":"<div><div>The Photocatalytic reduction of CO2 to formic acid represents a promising strategy for mitigating the CO2 emission. In the current study, we use the Metal organic framework (MOFs) namely (MOF@VP) incorporated with Zn (II) and redox-active Vanadium centers V(V)/V(VI) for CO2 reduction. Thermogravimetric analysis (TGA) and FT-IR spectroscopy confirmed efficient CO2 adsorption with a maximum adsorption capacity of 0.020 mmol/g and a desorption rate of 20 %. The Photocatalytic CO2 reduction mechanism was investigated, demonstrating that MOF@VP facilitates the conversion of CO2 to formic acid via electron transfer with the TEOA (Tri-ethanolamine) as a sacrificial reagent. Cyclic voltammetry revealed enhanced electrochemical activity in the presence of CO2 further supporting the catalytic reduction mechanism. GC–MS analysis confirmed the formation of formic acid as a dominant product. The stability and Regeneration tests showed that the MOF@VP retained its efficiency and thermal stability after multiple cycles. These findings highlight the potential of using MOF@VP as a robust and efficient catalyst for CO2 reduction, addressing key challenges in catalyst performance and longevity.</div></div>","PeriodicalId":13599,"journal":{"name":"Inorganica Chimica Acta","volume":"579 ","pages":"Article 122586"},"PeriodicalIF":2.7,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143376715","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}

引用次数: 0

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全部化学•材料生命科学医学物理工程技术环境•农林材料科学地球科学法学管理学化学环境科学与生态学计算机科学教育学经济学农林科学人文科学生物学数学物理与天体物理心理学综合性期刊其他工业工程理学历史学农学文学信息工程

数据库

全部 ACS Publications Elsevier ieeexplore Springer The Royal Society of Chemistry Wiley

期刊

Inorganica Chimica Acta

全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.

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