[Pt(bpy)(cod)(Me)][SbF6]中五坐标铂(II)的结构和光谱研究

Inorganics (Basel) Pub Date : 2015-05-13 DOI:10.3390/INORGANICS3020118

A. Klein, M. Neugebauer, Alexander Krest, A. Lüning, Simon Garbe, N. Arefyeva, N. Schlörer

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引用次数: 12

摘要

用[Pt(cod)(Me)]与Ag[SbF6]和bpy反应得到了五配位有机铂配合物[Pt(bpy)(cod)(Me)][SbF6] (cod = 1,5-环二烯，bpy = 2,2 ' -联吡啶)，并通过红外、核磁共振和单晶XRD对其进行了表征。虽然应用τ值区分三角双锥体配位与方锥体配位失败，但分子结构可以明确地描述为碱性扭曲的三角双锥体。环境温度下溶液的详细多核磁共振波谱为相同的结构提供了强有力的证据;相应的低至- 70°C的低温测量显示没有明显的动态过程。

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Five Coordinate Platinum(II) in [Pt(bpy)(cod)(Me)][SbF6]: A Structural and Spectroscopic Study

The five coordinate organoplatinum complex [Pt(bpy)(cod)(Me)][SbF6] (cod = 1,5-cyclooctadiene, bpy = 2,2’-bipyridine) was obtained reacting [Pt(cod)(Me)Cl] with Ag[SbF6] and bpy and characterized by multiple spectroscopy (IR and NMR) and single crystal XRD. Although the application of the τ values for the discrimination between trigonal bipyramidal vs. square pyramidal coordination fails, the molecular structure can be unequivocally described as basally-distorted trigonal bipyramidal. Detailed multinuclear NMR spectroscopy in solution at ambient temperature gives strong evidence for the same structure; corresponding low-temperature measurements down to −70 °C revealed no marked dynamic processes.

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Inorganics (Basel)

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