Synthesis, characterisation and electrochemical behaviour of rhodium(III) complexes containing 1,2-naphthoquinone-2-oxime and formation of imine complexes through N-O bond cleavage

被引：0

作者：

Liu, XX ^{[1
]}

Wong, WT ^{[1
]}

机构：

[1] Univ Hong Kong, Dept Chem, Hong Kong, Hong Kong, Peoples R China

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2001年 / 02期

关键词：

rhodium; N ligands; electrochemistry;

D O I：

10.1002/1099-0682(200102)2001:23.0.CO;2-U

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The new rhodium(III) complexes [Rh(eta (2)-nqo)L2Cl2] (la-ld) and [Rh(eta (2)-nqo)(2)LCl] (2b-2d) [1a, L = PPh3; 1b,2b, L = pyridine (py); lc,2c, L = 4-phenylpyridine (ppy); ld,2d, L = 4-acetylpyridine (apy)] have been prepared by treatment of the reaction mixture of RhCl3. 3H(2)O and 1,2-naphthoquinone-2-oxime (nqo) in ethanol by P or N donor ligands. Cyclic voltammetric studies show that the new complexes display an irreversible metal-localised two-electron reduction from Rh-III to Rh-I, accompanied by the loss of the chloride ligands. The 1,2-naphthoquinone-2-imine (nqi) complexes [Rh(eta (2)-nqo)(eta (2)-nqi)Cl-2].L (3b-3d) (3b, L = py; 3c, L = ppy; 3d, L = apy), [Rh(eta (2)-nqo)(eta (2)-nqi)Cl-2] (4) and [Rh(eta (2)-nqo)(2)(nqi)Cl] (5) were obtained by deoxygenation of the oxime group in which N-O bond cleavage is observed. The molecular structures of la, 2b, 4 and 5 were established by single crystal X-ray analyses.

引用

页码：511 / 520

页数：10

共 26 条

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