ELECTROCHEMICAL AND CHEMICAL-REDUCTION OF NIOBOCENE DICHLORIDES IN THE PRESENCE OF CARBON-DIOXIDE

被引：7

作者：

ELKRAMI, S

MOURAD, Y

MUGNIER, Y

ANTINOLO, A

DELHIERRO, I

GARCIAYUSTE, S

OTERO, A

FAJARDO, M

BRUNNER, H

GEHART, G

WACHTER, J

AMAUDRUT, J

机构：

[1] UNIV BOURGOGNE,CNRS,URA 1685,SYNTH ELECTROSYNTH ORGANONET LAB,F-21000 DIJON,FRANCE

[2] UNIC CASTILLA,FAC QUIM,DEPT QUIM INORGAN ORGAN & BIOQUIM,E-13071 CIUDAD REAL,SPAIN

[3] UNIV ALCALA DE HENARES,DEPT QUIM INORGAN,E-28871 ALCALA DE HENARES,SPAIN

[4] UNIV ALCALA DE HENARES,DEPT QUIM ORGAN,E-28871 ALCALA DE HENARES,SPAIN

[5] UNIV REGENSBURG,INST ANORGAN CHEM,D-93040 REGENSBURG,GERMANY

[6] FAC SCI & TECH BESANCON,ORGANOMET LAB,F-25030 BESANCON,FRANCE

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1995年 / 498卷 / 02期

关键词：

NIOBIUM; ELECTROCHEMISTRY; CARBON DIOXIDE COMPLEXES; REDUCTION;

D O I：

10.1016/0022-328X(95)05526-U

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The chemical and electrochemical reduction of the niobocene dichlorides [Nb(eta(5)-C(5)H(4)SiMe(3))(2)Cl-2] 1, [Nb(eta(5)-C(5)Me(5))(2)Cl-2] 2 and [Nb(eta(5)-C(5)Me(4)Et)(2)Cl-2] 3, in the presence of carbon dioxide has been investigated. Formation of compounds of the type [Cp(2)Nb(CO2)] and [Cp(2)((*))NbCl(CO2)](1) has been established by means of IR, ESR and/or NMR spectroscopy. They contain a labile eta(2)-CO2. The order of stability increases with the degree of substitution the Cp. Less stable intermediates in the reduction of the system [Cp(2)NbCl(2)]/CO2 are discussed on the basis of cyclovoltammetric and coulometric data.

引用

页码：165 / 170

页数：6

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