Two thiourea-containing gold(I) complexes.
Two thiourea-containing gold(I) complexes.
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两种含硫脲的金(I)络合物。
DOI：
10.1107/s0108270102003062
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
A. Arvia
中科院分区：
文献类型：
--
作者：
O. Piro;E. Castellano;R. Piatti;Agustín E Bolzán A;A. Arvia
本文测定了双硫脲金（Ⅰ）配合物的两种盐[Au（CH（4）N（2）S）（2）]Cl（Ⅰ）和[Au（CH（4）N（2）S）（2）] SO（4）（Ⅱ）的晶体结构。氯化物盐（I）与相应的溴化物盐是同晶型的，尽管在键合上存在差异。Au（I）离子位于一个反型中心上，通过S原子上的孤对电子与两个与硫相关的硫脲配体配位[Au-S 2.278（2）A和Au-S-C 105.3（2）度]。硫酸盐（II）结晶时每个不对称单元有四个独立的[Au（CH（4）N（2）S）（2）]+阳离子，所有这些阳离子都具有几乎线性的S-Au-S键。（II）中的阳离子具有与（I）中发现的类似的构象。Au-S距离为2.276（3）~ 2.287（3），Au-S-C夹角为173.5（1）~ 177.7（1）度。这些数据是相关的，在解释不同的电化学过程中，金硫脲物种的形成。
The crystal structures of two salts of bis(thiourea)gold(I) complexes, namely bis(thiourea-kappaS)gold(I) chloride, [Au(CH(4)N(2)S)(2)]Cl, (I), and bis[bis(thiourea-kappaS)gold(I)] sulfate, [Au(CH(4)N(2)S)(2)](2)SO(4), (II), have been determined. The chloride salt, (I), is isomorphous with the corresponding bromide salt, although there are differences in the bonding. The Au(I) ion is located on an inversion centre and coordinated by two symmetry-related thiourea ligands through the lone pairs on their S atoms [Au-S 2.278 (2) A and Au-S-C 105.3 (2) degrees ]. The sulfate salt, (II), crystallizes with four independent [Au(CH(4)N(2)S)(2)]+ cations per asymmetric unit, all with nearly linear S-Au-S bonding. The cations in (II) have similar conformations to that found for (I). The Au-S distances range from 2.276 (3) to 2.287 (3) A and the Au-S-C angles from 173.5 (1) to 177.7 (1) degrees. These data are relevant in interpreting different electrochemical processes where gold-thiourea species are formed.