We have recently reported that cationic thiosulfonato ruthenium complexes [(p-cymene)Ru(bipy)(SSO2Ar)]+ (bipy: 2-2â²-bipyridine, Ar: phenyl or p-tolyl) react with thiolates (RSâ, R = alkyl or aryl) by cleavage of the SâSO2 bond and formation of a new SâS bond. In this work, we report that the outcome of the reaction is different if the hydrosulfide anion (R = H) is used, the product obtained being the hydrogen(sulfido) derivative [(p-cymene)Ru(bipy)(SH)]+. The bipy ligand is crucial in this result, and its replacement by ethylenediamine leads to a different product, the trisulfido-bridged dinuclear complex [[(p-cymene)Ru(en)(S)]2S]2+. These two new species have been fully characterized, including by X-ray diffraction studies, and the two different mechanisms leading to their formation are discussed.
我们最近报道了阳离子
硫代亚
磺酸钌配合物 [(p-cymene)Ru(bipy)(SSO2Ar)]+(bipy:
2,2'-联吡啶,Ar:苯基或对甲基苯基)与
硫醇盐(RS⁻,R = 烷基或芳基)反应,过程为S–SO2键的断裂和新S–S键的形成。在本研究中,我们报告了如果使用氢
硫根离子(R = H),反应结果会有所不同,得到的产物为氢(
硫化)衍
生物 [(p-cymene)Ru(bipy)(SH)]+。bipy
配体在这一结果中至关重要,其被
乙烯二胺替代则会导致得到不同的产物,即三
硫桥联的二核配合物 [[(p-cymene)Ru(en)(S)]2S]2+。这两种新物种已被完全表征,包括X射线衍射研究,并讨论了导致其形成的两种不同机制。