SYNTHESES AND CRYSTAL-STRUCTURES OF [PD9AS8(PPH3)8] AND [PD9SB6(PPH3)8]

被引：27

作者：

FENSKE, D

PERSAU, C

机构：

[1] Inst. f. Anorg. Chemie d. Univ, Karlsruhe, W-7500, Engesserstraße

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1991年 / 593卷 / 02期

关键词：

PALLADIUM CLUSTER COMPOUNDS; PD9-CLUSTER; SYNTHESES; CRYSTAL STRUCTURES;

D O I：

10.1002/zaac.19915930107

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

[PdCl2(PPh3)2] reacts with As(SiMe3)3 to give the new cluster [Pd9As8(PPh3)8] (4). 4 has been characterized by X-ray crystal structure analysis. It is a molecule in which four [Pd2(PPh3)2]-units are bridged by As2-units. A further Pd atom is located in the centre of the cluster. 4 crystallizes in the space group C2/c with four formula units per unit cell. The lattice constants at 200 K are: a = 3970.6(3), b = 1648.90(16], c = 3266.30(20) pm, beta = 131,44(4)-degrees. The reaction of [PdCl2(PPh3)2] with Sb(SiMe3)3 yields [Pd9Sb6(PPh3)8] (5). 5 consists of a body centred cubic Pd9-cluster. All of the cube faces are capped by mu-4-Sb-ligands. 5 crystallizes in the space group Pn3BAR with two formula units per unit cell. The lattice constants at 200 K are: a = b = c = 1995.4(2) pm.

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页码：61 / 68

页数：8

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