LIGANDS DERIVED FROM ORTHO-BENZOQUINONE - STATISTICAL CORRELATION BETWEEN OXIDATION-STATE AND STRUCTURAL FEATURES

被引：58

作者：

CARUGO, O

CASTELLANI, CB

DJINOVIC, K

RIZZI, M

机构：

[1] UNIV LJUBLJANI, VTO KEMIJA KEM TEHNOL, YU-61001 LJUBLJANA, SLOVENIA

[2] UNIV PAVIA, DIPARTIMENTO GENET & MICROBIOL, I-27100 PAVIA, ITALY

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1992年 / 05期

关键词：

D O I：

10.1039/dt9920000837

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The known crystal structures of co-ordination compounds containing o-benzoquinone, tetrachloro-o-benzoquinone and 3,5-di-tert-butyl-o-benzoquinone derivatives in the form of catecholates I, semiquinonates II or benzoquinones III have been examined. Since forms I-III differ both in oxidation state and structural features, a simple method is proposed to correlate the oxidation states of these ligands with their structural parameters, thus allowing the determination of the oxidation state on the basis of crystallographic data. By this procedure it is possible to confirm that the o-benzoquinone complexes in most cases assume charge-localized electronic structures, and the same conclusion is reached by factor analysis. The results are compared with literature oxidation-state assignments, and the periodic trend in the charge distribution across a transition series is discussed for homoleptic complexes.

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页码：837 / 841

页数：5

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