On the Borderline between
<i>cis</i>
and
<i>trans</i>
in Organometallic(Phosphane)platinum(
<scp>II</scp>
) Complexes
作者:Dietrich Gudat、Vimal K. Jain、Axel Klein、Thilo Schurr、Stanislav Záliš
DOI:10.1002/ejic.200500251
日期:2005.10
The borderline between the cis and trans configurations in square-planar diarylplatinum(II) complexes with triethylphosphane ligands [Pt(Ar)2(PEt3)2] [Ar = 2,4,6-trimethylphenyl (mesityl), 2,6-dimethylphenyl, 2-methylphenyl, 3-methylphenyl, 4-methylphenyl and phenyl] has been investigated by a combination of multinuclear (1H, 13C, 31P and 195Pt) NMR spectroscopy, X-ray crystallography and quantum chemical
与三乙基膦配体 [Pt(Ar)2(PEt3)2] [Ar = 2,4,6-三甲基苯基 (mesityl), 2,6-二甲基苯基的方形平面二芳基铂 (II) 配合物中顺式和反式构型之间的边界、2-甲基苯基、3-甲基苯基、4-甲基苯基和苯基] 已通过多核(1H、13C、31P 和 195Pt)核磁共振光谱、X 射线晶体学和量子化学 (DFT) 计算的组合进行了研究。当在热力学条件下形成时,该配合物在顺式(甲苯基和苯基配合物)和反式(2,6-二甲苯基和三甲苯基配合物)之间显示出明显的界限。确定了 2-甲基苯基和 3-甲基苯基衍生物的顺式和反式立体异构体。计算数据(结构异构体或 NMR)与实验结果非常吻合。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany,