Synthesis and Reactivity in Inorganic and Metal-organic Chemistry最新文献_第2页

Synthesis and Properties of Mononuclear and Binuclear Copper(II) Complexes Stabilized by bis‐Benzimidazolyl Ligands 双-苯并咪唑配体稳定单核和双核铜(II)配合物的合成和性质

Synthesis and Reactivity in Inorganic and Metal-organic Chemistry Pub Date : 2004-12-01 DOI: 10.1081/SIM-200030171

Shivakumaraiah, N. Gowda

引用次数: 3

Ionic Pt(II) Complexes Containing bis(Diphenylthiophosphinyl)methane 含二(二苯基硫代膦基)甲烷的离子Pt(II)配合物

Synthesis and Reactivity in Inorganic and Metal-organic Chemistry Pub Date : 2004-12-01 DOI: 10.1081/SIM-200030224

S. Irişli, Leman Alkan

引用次数: 3

Diorganotin(IV) Derivatives of Dipeptides Containing at Least One Essential Amino Acid Residue: Synthesis, Characteristic Spectral Data, Cardiovascular, and Anti‐inflammatory Activities 含有至少一种必需氨基酸残基的二肽衍生物:合成、特征光谱数据、心血管和抗炎活性

Synthesis and Reactivity in Inorganic and Metal-organic Chemistry Pub Date : 2004-12-01 DOI: 10.1081/SIM-200030161

M. Nath, Sandeep Pokharia, G. Eng, Xueqing Song, Ashok Kumar

{"title":"Diorganotin(IV) Derivatives of Dipeptides Containing at Least One Essential Amino Acid Residue: Synthesis, Characteristic Spectral Data, Cardiovascular, and Anti‐inflammatory Activities","authors":"M. Nath, Sandeep Pokharia, G. Eng, Xueqing Song, Ashok Kumar","doi":"10.1081/SIM-200030161","DOIUrl":"https://doi.org/10.1081/SIM-200030161","url":null,"abstract":"Abstract New diphenyltin(IV) derivatives of the formula Ph2SnL, where L is the dianion of glycyltryptophan (Gly‐Trp), glycylphenylalanine (Gly‐Phe), valylvaline (Val‐Val), alanylvaline (Ala‐Val), and leucylalanine (Leu‐Ala), have been synthesized by the reaction of Ph2SnCl2 and the disodium salt of the respective dipeptides. The bonding and coordination behaviour in these derivatives are discussed on the basis of IR, multinuclear 1H, 13C, and 119Sn NMR and 119Sn Mössbauer spectroscopic studies. These investigations suggest that all the dipeptides in Ph2SnL act as dianionic tridentate ligands coordinating through the COO−, NH2, and Npeptide groups. The 119Sn Mössbauer studies, together with the NMR data, suggest a trigonal‐bipyramidal geometry around tin in Ph2SnL with the phenyl groups and Npeptide in the equatorial positions, whereas a carboxylic oxygen and the amino nitrogen atom occupy the axial positions. The anti‐inflammatory and cardiovascular activities, and toxicity of all the synthesized diphenyltin(IV) derivatives of dipeptides and of n‐dibutyltin(IV) derivatives of dipeptides (synthesized and characterized earlier) viz. Gly‐Trp, Val‐Val, Ala‐Val, glycyltyrosine (Gly‐Tyr), leucyltyrosine (Leu‐Tyr), and leucylleucine (Leu‐Leu) are discussed. The n‐dibutyltin(IV) derivatives exhibit better cardiovascular and anti‐inflammatory activities than the diphenyltin(IV) analogues.","PeriodicalId":22160,"journal":{"name":"Synthesis and Reactivity in Inorganic and Metal-organic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78408148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 32

Synthesis and Complexation of a Novel vic‐Dithioglyoxime 一种新型vic -二硫代糖肟的合成与配位

Synthesis and Reactivity in Inorganic and Metal-organic Chemistry Pub Date : 2004-12-01 DOI: 10.1081/SIM-200030236

A. Cihan, S. Uysal

引用次数: 0

Cobalt(III) Complexes of Dimethylglyoxime with No Direct Cobalt–Carbon Bond as Possible Non‐Organometallic Models for Vitamin B12 没有直接钴碳键的二甲基乙肟钴(III)配合物作为维生素B12可能的非有机金属模型

Synthesis and Reactivity in Inorganic and Metal-organic Chemistry Pub Date : 2004-11-01 DOI: 10.1081/SIM-200026589

G. Kolawole, N. P. Ndahi

{"title":"Cobalt(III) Complexes of Dimethylglyoxime with No Direct Cobalt–Carbon Bond as Possible Non‐Organometallic Models for Vitamin B12","authors":"G. Kolawole, N. P. Ndahi","doi":"10.1081/SIM-200026589","DOIUrl":"https://doi.org/10.1081/SIM-200026589","url":null,"abstract":"Abstract Cobaloximes of the type [CoX(Hdmg)2B] [X = Cl, CN, SCN or I, and B = py (pyridine), 4‐aminopy (4‐aminopyridine), or bipy (2,2′‐bipyridine)], [CoCl2(Hdmg)B] [B = bipy and phen (1,10‐phenathroline)], and [CoPF4(Hdmg)2py] were synthesized and characterized by elemental analyses, melting points, solubility, conductivity, room temperature, magnetic susceptibility measurements, infrared and UV‐VIS electronic spectra, and cyclic voltammetry. The complexes melted/decomposed at 220–314 °C and, with the exception of a few, many of them dissolved only in coordinating organic solvents. The complexes are orange to brown. They are also non‐electrolytes in organic solvents. The IR spectra indicated that the complexes coordinate through the N atom of the oxime group of each ligand. The magnetic susceptibilities and electronic spectra of the complexes indicated that they are low‐spin d6 octahedral. Electrochemical studies on some of the complexes, using cyclic voltammetry, revealed that some of the complexes underwent reversible oxidation–reduction and are, therefore, viable models for vitamin B12. A variety of structures have been proposed for the complexes.","PeriodicalId":22160,"journal":{"name":"Synthesis and Reactivity in Inorganic and Metal-organic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78081277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Synthesis and Characterization of Some New Manganese(II) Complexes, Manganese(III) Heterochelates, and µ‐Dioxo‐dimanganese(IV) Complexes Involving Tetradentate Schiff Bases 含四齿席夫碱的新型锰(II)配合物、锰(III)杂螯合物和µ-二氧二锰(IV)配合物的合成与表征

Synthesis and Reactivity in Inorganic and Metal-organic Chemistry Pub Date : 2004-11-01 DOI: 10.1081/SIM-200026605

K. Dey, S. Biswas, Saikat Sarkar

{"title":"Synthesis and Characterization of Some New Manganese(II) Complexes, Manganese(III) Heterochelates, and µ‐Dioxo‐dimanganese(IV) Complexes Involving Tetradentate Schiff Bases","authors":"K. Dey, S. Biswas, Saikat Sarkar","doi":"10.1081/SIM-200026605","DOIUrl":"https://doi.org/10.1081/SIM-200026605","url":null,"abstract":"Abstract Condensation of 1,3‐diaminopropane‐2‐ol with diacetylmonoxime and acetylacetone yielded the tetradentate Schiff bases N,N′‐(2‐hydroxy)propylene‐bis{(2‐imino‐3‐oximino)butane} (H2L1) and N,N′‐(2‐hydroxy)propylene‐bis(acetylacetoneimine) (H2L2), respectively. The ligands form mononuclear manganese(II) complexes of the type [Mn(II)(L1)] (1) and [Mn(II)(L2)] (3), which are used for the formation of the manganese(III) heterochelates of the type [Mn(III)(L)(L‐L)] (where H2L = H2L1 or H2L2; L‐L = anion of acetylacetone or salicylaldehyde). Cationic heterochelates of the type [Mn(L)(L‐L)]ClO4 where H2L = H2L1 or H2L2 and L‐L = ethylenediamine and N,N′‐propylene‐bis(benzaldimine) (L3) have been synthesized by the reactions of bis(acetylacetonato)manganese(II) or bis(salicylaldehydato)manganese(II) with the preformed Schiff bases or by the reactions of [Mn(II)(L1)] or [Mn(II)(L2)] with L‐L in absolute alcohol under reflux. Some of the complexes, synthesized here, may be used as precursors in the synthesis of higher nuclearity manganese complexes. Air oxidation of [Mn(II)(L1)] (1) and [Mn(II)(L2)] (3) in DMF yielded the dark‐brown µ‐dioxo‐bis‐[N,N′‐(2‐hydroxy)propylene‐bis{(2‐imino‐3‐oximino)butane}]dimangenese(IV) (2) and µ‐dioxo‐bis[N,N′‐(2‐hydroxy)propylene‐bis{(acetylacetoneimine)}]dimangenese(IV) (4) complexes, respectively. All of the complexes have been characterized with the help of elemental analyses, molar conductance values, molecular weights, magnetic moments, and spectroscopic (IR, UV‐VIS, ESR) data.","PeriodicalId":22160,"journal":{"name":"Synthesis and Reactivity in Inorganic and Metal-organic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87519909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Binary Complexes of Zirconium(IV) Naphthylideneamino Acids and their Ternary Complexes with Some Imidazoles. Synthesis, Characterization, and Electrochemical Studies 锆(IV)萘基氨基酸二元配合物及其与咪唑的三元配合物。合成、表征和电化学研究

Synthesis and Reactivity in Inorganic and Metal-organic Chemistry Pub Date : 2004-11-01 DOI: 10.1081/SIM-200026620

M. K. Rabia, Gamila Y. Aly, Maha A. F. Al‐Mohanna

引用次数: 5

Synthesis, Crystal Structure and Thermal Studies of bis(O,O′‐Dibenzyldithiophosphato)‐(2,2′‐Bipyridine)nickel(II) Complex 双(O,O′‐二苄基二硫代磷酸)‐(2,2′‐联吡啶)镍(II)配合物的合成、晶体结构和热研究

Synthesis and Reactivity in Inorganic and Metal-organic Chemistry Pub Date : 2004-11-01 DOI: 10.1081/SIM-200026301

F. Jian, G. Zheng, Hailian Xiao

引用次数: 2

Synthesis, Physicochemical and Electrochemical Studies on Mn(II), Co(II), Ni(II), and Cu(II) Complexes with an N‐Donor Tetradentate (N4) Macrocycle Ligand Derived from Ethyl Cinnamate 肉桂酸乙酯衍生N -供体四齿(N4)大环配体Mn(II)， Co(II)， Ni(II)和Cu(II)配合物的合成、理化和电化学研究

Synthesis and Reactivity in Inorganic and Metal-organic Chemistry Pub Date : 2004-11-01 DOI: 10.1081/SIM-200026596

S. Chandra, L. Gupta, Sangeetika

引用次数: 21

Convenient One‐Pot Synthesis of Symmetrical Dithiocarbamates 对称二硫代氨基甲酸酯的便捷一锅合成

Synthesis and Reactivity in Inorganic and Metal-organic Chemistry Pub Date : 2004-11-01 DOI: 10.1081/SIM-200026593

Shahab A. A. Nami, K. S. Siddiqi

引用次数: 17