{"title":"不饱和叔膦和砷的金属配合物。第九部分。三烯烃-膦、-胂和-棘碱螯合基团的铂配合物","authors":"D. I. Hall, R. Nyholm","doi":"10.1039/J19710001491","DOIUrl":null,"url":null,"abstract":"Three new ligands, tris-(ortho-vinylphenyl) phosphine (tvpp) and its arsenic (tvpa) and antimony (tvps) analogues, have been prepared and their complexes with platinum(II) investigated: these derivatives have the general formula PtBr2(Ligand), and are monomeric in chloroform. l.r. and Raman spectral studies indicate that in the solid state there are two types of aliphatic C:C bond present. We conclude that one of the double bonds is co-ordinated and the other two are free. 1H n.m.r. data indicate that all three vinyl C:C bonds are equivalent in solution, indicating a rapid, bonded ⇌ non-bonded equilibrium for the ·CH:CH2 groups to the platinum atom. The complexes react with two moles of bromine with saturation of two double bonds to give a platinum(II) compound with one, co-ordinated double bond. A possible reaction mechanism is presented.","PeriodicalId":17321,"journal":{"name":"Journal of The Chemical Society A: Inorganic, Physical, Theoretical","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"12","resultStr":"{\"title\":\"Metal complexes of unsaturated tertiary phosphines and arsines. Part IX. Platinum complexes of tris-olefin-phosphine, -arsine, and -stibine chelate groups\",\"authors\":\"D. I. Hall, R. Nyholm\",\"doi\":\"10.1039/J19710001491\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Three new ligands, tris-(ortho-vinylphenyl) phosphine (tvpp) and its arsenic (tvpa) and antimony (tvps) analogues, have been prepared and their complexes with platinum(II) investigated: these derivatives have the general formula PtBr2(Ligand), and are monomeric in chloroform. l.r. and Raman spectral studies indicate that in the solid state there are two types of aliphatic C:C bond present. We conclude that one of the double bonds is co-ordinated and the other two are free. 1H n.m.r. data indicate that all three vinyl C:C bonds are equivalent in solution, indicating a rapid, bonded ⇌ non-bonded equilibrium for the ·CH:CH2 groups to the platinum atom. The complexes react with two moles of bromine with saturation of two double bonds to give a platinum(II) compound with one, co-ordinated double bond. A possible reaction mechanism is presented.\",\"PeriodicalId\":17321,\"journal\":{\"name\":\"Journal of The Chemical Society A: Inorganic, Physical, Theoretical\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1971-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"12\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of The Chemical Society A: Inorganic, Physical, Theoretical\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1039/J19710001491\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The Chemical Society A: Inorganic, Physical, Theoretical","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1039/J19710001491","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Metal complexes of unsaturated tertiary phosphines and arsines. Part IX. Platinum complexes of tris-olefin-phosphine, -arsine, and -stibine chelate groups
Three new ligands, tris-(ortho-vinylphenyl) phosphine (tvpp) and its arsenic (tvpa) and antimony (tvps) analogues, have been prepared and their complexes with platinum(II) investigated: these derivatives have the general formula PtBr2(Ligand), and are monomeric in chloroform. l.r. and Raman spectral studies indicate that in the solid state there are two types of aliphatic C:C bond present. We conclude that one of the double bonds is co-ordinated and the other two are free. 1H n.m.r. data indicate that all three vinyl C:C bonds are equivalent in solution, indicating a rapid, bonded ⇌ non-bonded equilibrium for the ·CH:CH2 groups to the platinum atom. The complexes react with two moles of bromine with saturation of two double bonds to give a platinum(II) compound with one, co-ordinated double bond. A possible reaction mechanism is presented.