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Hexanuclear Complex of Platinum(II) with Cleavage Product of Cystamine Dihydrochloride by β-Mercaptoethylamine

Advances in Chemical Engineering and Science 2016年第1期6卷 29-33页

作者： Asmat N. Azizova Dilqam B. Tagiyev Shmid G. Gasimov Khudayar I. Gasanov The Institute of Catalysis and Inorganic Chemistry Named after Acad. M. F. Nagiyev of the National Academy of Sciences Azerbaijan Baku Azerbaijan

Six-nuclear complexes of Platinum(II) with cleavage of a cystamine dihydrochloride by β-mercaptoethylamine with composition [Pt6(H2NCH2CH2S)8]Cl4·5H2O had been syntesized for the first time. Structure of the complex had been installed together with IKS- and XRD analysis. It has been established that each atom of platinum is surrounded by two atoms of sulfur and nitrogen due to bidentate coordination of a ligand. Only two of the six platinum atoms are on the same plane;other four atoms are in the different crossing planes. Four platinum atoms form adurable metal chelate cycles, which collapse over temperature 260℃. The results of IR spectroscopy confirmed with the RS-analysis.

关键词： Mercaptoamine ligands Platinum Six-Nuclear Complexes Synthesis

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Aqueous-Phase, Palladium-Catalyzed Suzuki Reactions under Mild Conditions

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Green and Sustainable Chemistry 2013年第4期3卷 1-5页

作者： Yueqin Cai Gonghua Song Zhongyuan Wu Jiawei Zhang School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai China Shanghai Key Laboratory of Chemical Biology Institute of Pesticides & Pharmaceuticals East China University of Science and Technology Shanghai China

Water-soluble ionic liquid-supported diols have been used as phosphine-free ligands in Suzuki couplings of aryl idides/bromides/chlorides under mild conditions in aqueous solvent. It was found that 2,2-bis((1-hexylimidazolium)-mehyl) propane-1,3-diol hexafluorophosphate (4) in combination with palladium (II) salts gave the most significant catalyst. Suzuki couplings of aryl iodides/bromides occurred efficiently at room temperature in water/acetonitrile. Notably, the reactions of hydrophilic aryl bromides gave high yields in neat water. The catalyst PdCl2-4 was recycled five times in Suzuki couplings in water before catalyst activity began to significantly drop. The average yield of five cycles was >95% per cycle.

关键词： Suzuki Reaction Ionic Liquid-Supported Diols Phosphine-Free ligands

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Anti-bacterial Properties of Transition Metal Complexes of Copper Metal Ion:A Mini Review

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Journal of Metallic Material Research 2022年第2期5卷 27-38页

作者： Abhay Nanda Srivastva Nisha Saxena Netra Pal Singh Jayant Kumar Department of Chemistry Nitishwar MahavidyalayaB.R.A.Bihar UniversityMuzarrafpur842002India University Department of Chemistry B.R.A.Bihar UniversityMuzaffarpur842001India Department of Chemistry M.R.M.CollegeL.N.Mithila UniversityDarbhanga846004India Department of Chemistry D.D.U.Gorakhpur UniversityGorakhpur273009India Graduate Student Department of ZoologyNitishwar MahavidyalayaB.R.A.Bihar UniversityMuzarrafpur842002India

Bacterial infections are a major cause for impulsive deaths in human *** infections of the respiratory,gastrointestinal and central nervous system account for the majority of cases of sudden *** available drugs are getting ineffective by each passing day as the mutation is very fast in these pathogenic microbes resulting in drug *** growing resistance of bacteria necessitates the development of new and effective compounds of desired characteristics that could bar the rapid development of bacterial cell inside of the host *** with cellular resistance for clinical antibiotics,co-bacterial infections during microbial attacks(***,fungus,protozoans etc.)also demand for some novel antibacterial drugs having high efficacy and minimal side effects on human *** antibiotics should also be compatible with remedies ongoing for core microbial ***,in demand of search for effective antibacterial moieties,the scope of transition metal complexes as drug gives a good signal against the pathogenic bacteria by inhibiting their *** action of metal complexes on bacterial cell may be due to impremiablity,enzymatic interruptions,ribosomal interactions,disturbance in the path of protein synthesis,denaturing of genetic materials *** the *** in complexes may interrupt the lipophilisity through the bacterial cell *** of metal ions in organic moieties behaving as ligand delocalizeπ-electrons upon the entire chelate ring and this chelation results in overlapping of ligand orbital and partial sharing of(+)ve charge of metal ion with donor *** structural modifications in metal and organic lone pair donor species are the supposed reasons for their enhanced antimicrobial activities against pathogenic *** present review focuses on the impact of recently synthesized,well characterized mono and binuclear transition metal complexes of Cu ions that have the potential to be the drug of th

关键词： ligands Coordination compounds Antimicrobial activity Drug resistance

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手性铑膦络合物的不对称均相氢化

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松辽学刊(自然科学版) 1987年第3期 37-43页

作者：刘丽新刘淮西平师范学院化学系

本文简要地介绍了对于均相氢化非常有效的催化剂手性铑膦络合物。讨论了一些手性膦配位基的种类及特征,手性铑膦络合物的制备及应用。

关键词： rhodium phosphine complxes catalytic hydrogenation asymmetric synthesis ligands

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