CYCLOPALLADATED COMPOUNDS - STRUCTURAL STUDIES ON DINUCLEAR AZOBENZENE COMPLEXES

被引：14

作者：

CRISPINI, A ^{[1
]}

GHEDINI, M ^{[1
]}

NEVE, F ^{[1
]}

机构：

[1] UNIV CALABRIA,DIPARTIMENTO CHIM,I-87030 ARCAVACATA,ITALY

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1993年 / 448卷 / 1-2期

关键词：

D O I：

10.1016/0022-328X(93)80091-O

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The X-ray crystal structure of the cyclometallated dimer di-mu-bromo-bis[(2',6'-dimethylazobenzenato-C2,N2)palladium(II)] (2) and its iodo analogue (3) are described. 2 crystallizes in the orthorhombic space group Pca2(1) with a = 16.960(8) angstrom, b = 10.251(5) angstrom, c = 16.359(8) angstrom, Z = 4, U = 2844(2) angstrom3. Refinement of 244 parameters yielded R = 0.074 and R(w) = 0.081. Crystals of 3 are orthorhombic, space group Pca2(1) with a = 17.054(3) angstrom, b = 10.506(2) angstrom, c = 16.277(2) angstrom, Z = 4, U = 2916.3(8) angstrom3, R = 0.033 and R(w) = 0.036 for 3048 reflections with I > 3sigma(I). Structural features of 2 and 3 are compared with those of the chloro homologue 1. The possible effect of different bridging halides on the mesomorphism of related classes of compound is also discussed.

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页码：241 / 245

页数：5

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