{"title":"一种新型vic -二硫代糖肟的合成与配位","authors":"A. Cihan, S. Uysal","doi":"10.1081/SIM-200030236","DOIUrl":null,"url":null,"abstract":"Abstract A new vic‐dioxime ligand, namely 2‐(4,5‐bishydroxyimino‐1,3‐dithiolan‐2‐ylidene)malonic acid diethyl ester (LH2), has been synthesized in two steps starting with the condensation of carbon disulphide and malonic acid diethyl ester and subsequent reaction of the dithiolate intermediate with anti‐dichloroglyoxime (DCGO) in ethanol at 5 °C. LH2 forms mononuclear N,N′‐coordinated planar metal complexes with Ni(II) and Co(II) and N,O‐coordinated (μ‐hydroxo‐bridged dimeric complex with UO2(VI). The octahedral complex (LH)2CoPyCl has been prepared by oxidation of the (LH)2Co complex in the presence of pyridine, and it has been reduced to the Co(I) derivative by NaBH4.","PeriodicalId":22160,"journal":{"name":"Synthesis and Reactivity in Inorganic and Metal-organic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2004-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis and Complexation of a Novel vic‐Dithioglyoxime\",\"authors\":\"A. Cihan, S. Uysal\",\"doi\":\"10.1081/SIM-200030236\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract A new vic‐dioxime ligand, namely 2‐(4,5‐bishydroxyimino‐1,3‐dithiolan‐2‐ylidene)malonic acid diethyl ester (LH2), has been synthesized in two steps starting with the condensation of carbon disulphide and malonic acid diethyl ester and subsequent reaction of the dithiolate intermediate with anti‐dichloroglyoxime (DCGO) in ethanol at 5 °C. LH2 forms mononuclear N,N′‐coordinated planar metal complexes with Ni(II) and Co(II) and N,O‐coordinated (μ‐hydroxo‐bridged dimeric complex with UO2(VI). The octahedral complex (LH)2CoPyCl has been prepared by oxidation of the (LH)2Co complex in the presence of pyridine, and it has been reduced to the Co(I) derivative by NaBH4.\",\"PeriodicalId\":22160,\"journal\":{\"name\":\"Synthesis and Reactivity in Inorganic and Metal-organic Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2004-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Synthesis and Reactivity in Inorganic and Metal-organic Chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1081/SIM-200030236\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Synthesis and Reactivity in Inorganic and Metal-organic Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1081/SIM-200030236","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Synthesis and Complexation of a Novel vic‐Dithioglyoxime
Abstract A new vic‐dioxime ligand, namely 2‐(4,5‐bishydroxyimino‐1,3‐dithiolan‐2‐ylidene)malonic acid diethyl ester (LH2), has been synthesized in two steps starting with the condensation of carbon disulphide and malonic acid diethyl ester and subsequent reaction of the dithiolate intermediate with anti‐dichloroglyoxime (DCGO) in ethanol at 5 °C. LH2 forms mononuclear N,N′‐coordinated planar metal complexes with Ni(II) and Co(II) and N,O‐coordinated (μ‐hydroxo‐bridged dimeric complex with UO2(VI). The octahedral complex (LH)2CoPyCl has been prepared by oxidation of the (LH)2Co complex in the presence of pyridine, and it has been reduced to the Co(I) derivative by NaBH4.
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