13C and 15N NMR studies of the interaction of gold(I) thiolates with thiourea (13C and 15N labelled)

被引：5
|
作者：
Isab, AA [1 ]
Ahmad, S [1 ]
Al-Arfaj, AR [1 ]
Akhtar, MN [1 ]
机构：
[1] King Fahd Univ Petr & Minerals, Dept Chem, Dhahran 31261, Saudi Arabia
来源：
JOURNAL OF COORDINATION CHEMISTRY | 2003年 / 56卷 / 02期
关键词：
gold(I) thiomalate; gold(I) thioglucose; thiourea; thione; NMR;
D O I：
10.1080/0095897021000041338
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The interaction of gold(I) thiomalate [(Autm)n] and gold(I) thioglucose [(Autg)(n)] with thiourea (Tu) has been studied using C-13 and N-15 NMR spectroscopy. It is observed that thiourea binds to Autm), to form a ternary complex, Tu-Au-tm. An upfield shift of 2.6ppm in the >C=S resonance of Tu in C-13 NMR and a downfield shift of 1.0 ppm in N-15 NMR are indicative of gold(l) binding with Tu through sulfur only. In the case of (Autg),, the >C=S resonance of Tu remains unchanged. throughout the titration, suggesting that Tu could not break the (Autg)(n) polymer completely. Imidazolidine-2-thione (Imt) also shows a weak interaction towards (Autg)(n), similar to that of Tu.
引用
收藏
页码：95 / 101
页数：7
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