Theoretical study of the d10-d8 interaction between Au(I) and Au(III) on the cis/trans-[PH3Au(I)C(L)=C(L)Au(III)(R)2PH3] (R = -H -CH3;: L = -H, -CH3) systems

被引:29
|
作者
Mendizabal, F [1 ]
Zapata-Torres, G
Olea-Azar, C
机构
[1] Univ Chile, Fac Sci, Dept Chem, Santiago 653, Chile
[2] Univ Chile, Millennium Inst Adv Studies Cell Biol & Biotechno, Santiago 653, Chile
[3] Fac Chem & Pharmaceut Sci, Dept Inorgan & Analyt Chem, Santiago 1, Chile
关键词
D O I
10.1016/j.cplett.2003.09.157
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We have carried out an ab initio study designed to shed some light on the aurophilic attractions between Au(I) and Au(III) in the [PH3Au(I)C(L)=C(L)Au(III)(R)(2)PH3] (where R = -H, -CH3; L = -H, -CH3) model. Calculations carried out at the MP2 level revealed important facts such as the presence of an intramolecular aurophilic interaction in the cis-complexes that stabilizes them with respect to the trans-isomers. Using two additional models to study the intermolecular interaction between Au(1) and Au(111) we were able to estimate an interaction energy between 21 and 25 kJ mol(-1) at the MP2 level of calculation. Published by Elsevier B.V.
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页码:92 / 99
页数:8
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