Novel silver-telluride clusters stabilised with bidentate phosphine ligands:: Synthesis and structure of {[Ag5(TePh)6(Ph2P(CH2)2PPh3)](Ph2P(CH2)2PPh2)}∞, and [Ag38Te13(TetBu)12(Ph2P(CH 2)2PPh2)3]

被引：0
|
作者：
Langetepe, T [1 ]
Fenske, D [1 ]
机构：
[1] Univ Karlsruhe, Inst Anorgan Chem, D-76128 Karlsruhe, Germany
来源：
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2001年 / 627卷 / 05期
关键词：
bridging ligands; cluster compounds; silver; tellurium;
D O I：
10.1002/1521-3749(200105)627:5<820::AID-ZAAC820>3.0.CO;2-A
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Bidentate phosphine ligands have been found effective to stabilise polynuclear cores containing silver and chalcogenide ligands. They can act as intra and intermolecular bridges between the silver centres. The clusters {[Ag-5(TePh)(6)(Ph2P(CH2)(2)PPh3)](Ph2P(CH2)(2)PPh2)}(infinity) (1). [Ag18Te(TePh)(15)(Ph2P(CH2)(3)PPh2)(2)Cl] (2), and [Ag38Te13-(TetBu)(12)(Ph2P(CH2)(2)PPh2)(3)] (3) have been prepared and their molecular structure determined. Compound 2 and 3 are molecular structures with separated cluster cores while 1 forms a polymeric chain bridged by phosphine ligands. (1: space group P2(1)/c (No. 14), Z = 4, a = 3518,1(7) pm, b = 2260.6(5) pm. c = 3522,1(7) pm, beta = 119,19(3)degrees; 2: space group R (3) over bar (No. 148). Z = 6, a = b = 3059,4(4)pm, c = 5278.8(9)pm; 3: space group Peen (No. 56), Z = 4, a = 3613,0(9) pm, b = 3608,6(7) pm, c = 2153.5(8) pm).
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页码：820 / 826
页数：7
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