Electrochemical reduction of cobalt and nickel complexes with ligands stabilizing metal in low oxidation state

被引：10

作者：

Budnikova, YG ^{[1
]}

Kafiyatullina, AG ^{[1
]}

Kargin, YM ^{[1
]}

Sinyashin, OG ^{[1
]}

机构：

[1] Russian Acad Sci, Kazan Sci Ctr, AE Arbuzov Organ & Phys Chem Inst, Kazan 420088, Russia

来源：

RUSSIAN CHEMICAL BULLETIN | 2003年 / 52卷 / 07期

关键词：

cobalt; nickel; pi-acceptor ligands; 2,2 '-bipyridine; diphenyl-2-pyridylphosphine; triphenylphosphine; electrochemical reduction;

D O I：

10.1023/A:1025676605941

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electrochemical reduction of cobalt(II) complexes containing pi-acceptor ligands (L = bpy, Ph(2)Ppy) proceeds through three consecutive reversible steps: one-electron transfer to form a more stable (CoL)-L-1 complex, transfer of two electrons at more negative potentials to form an anionic [CoL](-) complex, and reduction of the liggand to the radical anion. The stability of the cobalt complexes with different ligands decreases in the series Ph(2)Ppy > Ph3P > bpy.

引用

页码：1504 / 1511

页数：8

共 22 条

[1]

ALBRAM U, 1999, POLYHEDRON, V18, P2995

[2] ABSOLUTE DETERMINATION OF ELECTRON CONSUMPTION IN TRANSIENT OR STEADY-STATE ELECTROCHEMICAL TECHNIQUES [J].

AMATORE, C ;

AZZABI, M ;

CALAS, P ;

JUTAND, A ;

LEFROU, C ;

ROLLIN, Y .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1990, 288 (1-2) :45-63

[3] Electrocatalytic reduction of organic halides with cobalt bipyridine complexes [J].

Budnikona, YH ;

Kafiyatullina, AG ;

Kargin, YM ;

Sinyashin, OG .

RUSSIAN CHEMICAL BULLETIN, 2002, 51 (09) :1702-1708

[4]

Budnikova YG, 1995, ZH OBSHCH KHIM+, V65, P1655

[5]

Budnikova YG, 1996, ZH OBSHCH KHIM+, V66, P610

[6]

Budnikova YG, 1995, ZH OBSHCH KHIM+, V65, P1536

[7]

Budnikova YG, 1998, ZH OBSHCH KHIM+, V68, P1123

[8]

Budnikova YG, 1996, ZH OBSHCH KHIM+, V66, P605

[9]

Budnikova YG, 1996, ZH OBSHCH KHIM+, V66, P1876

[10]

BUDNIKOVA YH, 2000, ZH OBSHCH KHIM, V70, P123

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