C-13(H-1) NMR-STUDIES OF SELECTED TRANSITION-METAL ALKYNE COMPLEXES

被引：51

作者：

ROSENTHAL, U ^{[1
]}

OEHME, G ^{[1
]}

BURLAKOV, VV ^{[1
]}

PETROVSKII, PV ^{[1
]}

SHUR, VB ^{[1
]}

VOLPIN, ME ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,INST ORGANOELEMENT CPDS,MOSCOW 117813,RUSSIA

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1990年 / 391卷 / 01期

关键词：

D O I：

10.1016/0022-328X(90)80160-2

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

13C1H NMR spectra of selected nickel alkyne complexes (Ph3P)2Ni(RC2R) have been recorded and the results are compared with the relevant data for other alkyne complexes of transition metals. It has been found that the complexes with two-electron alkyne ligands such as (Ph3P)2Ni(RC2R), (Me3P)2Ni(RC2R), (Ph3P)2Pt(RC2R) and the complexes with four-electron alkyne ligands such as Cp2Ti(RC2R), Cp2{black star}Ti(RC2R) (Cp{black star} = η5-C5Me5), CpV(PMe3)2(RC2R), W-(OCMe3)4(RC2R) are characterized by the markedly different influence the electronic parameters of the substituents R have on the value of the 13C NMR downfield shift, Δδ(CC), on going from free to complexed CC bond. The IR spectra of the two types of complexes show no specific differences in the influence of various alkyne substituents R on the relevant Δν(CC) values. © 1990.

引用

页码：119 / 122

页数：4

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