donation to the S center, but protonation results in a reorganization of the electronic structure of 1H(+)() and a HOMO that is largely metal in character. The reduction of Fe-S distances upon protonation of 1(R = Ph) to give 1(R = Ph)H(+)() small middle dotBF(4)()(-)() (2.282(2) and 2.258(2) A, respectively), as determined by single-crystal X-ray crystallography, also indicates diminished Fedpi-Sppi
H键捐赠给(eta(5)-C(5)H(5))Fe(CO)(2)SR(1)的
硫醇盐配体的作用,得到H键加合物(1个小的中点HX)最终质子化得到[(eta(5)-C(5)H(5))Fe(CO)(2)(HSR)](+)(1H(+)())已通过实验和计算方法进行了研究。使用DFT(密度泛函理论)计算方法研究了1(R = Me),1(R = Me)小中间点HX的几个导数和1(R = Me)H(+)()的电子结构。如先前所建议的,这些计算表明1的HOMO是Fedpi-Sppi反键,并且主要是
硫。计算表明1的电子结构没有因向S中心的H键捐赠而显着改变,但是质子化导致1H(+)()的电子结构和性质上主要为
金属的HOMO
重组。质子化1(R = Ph)得到1(R = Ph)H(+)()小中点BF(4)()(-)()时Fe-S距离的减少(2.282(2)和2.258 (2)分别通过单晶X射线晶体学测定的A也表明