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Organophosphines in PtP2Si2 derivatives – structural aspects
Phosphorus, Sulfur, and Silicon and the Related Elements ( IF 1.3 ) Pub Date : 2019-12-31 , DOI: 10.1080/10426507.2019.1708360
Milan Melník 1 , Peter Mikuš 2
Affiliation  

Abstract In this review, the structural data of monomeric platinum(II) complexes with inner coordination spheres of Pt(η2-P2L)(SiL)2, Pt(η2-P2L)(η2-Si2L) and Pt(η2-P,SiL)2 are classified and analyzed. These complexes crystallize in three crystal systems: monoclinic (8 examples), triclinic (4 examples) and orthorhombic (4 examples). Distorted square-planar environments about the Pt(II) atoms are built up by combination of homobi-P,P with two monodentate Si donor ligands; homobi-PP with homo-Si,Si donor ligands, or heterobi-P,Si donor ligands. The chelating ligands create metallacycles with the following angles: 65.0° (SiOSi) < 83.1° (SiC2Si) < 85.2° (PC2P) < 88.8° (SiSi2Si)). The mean Pt-P and Pt-Si bond distances in Pt(η2-P2L)·(SiL)2 complexes are 2.319 and 2.365 Å; in Pt(η2-P2L)(η2-Si2L) the values are 2.316 and 2.360 Å. The complex [Pt{η2-Me2P(C2B10H10)SiMe2}2] exists in two isomeric forms, a monoclinic cis- and a triclinic trans-isomer. The structural data are compared and discussed with the complexes of inner coordination spheres: Pt(η2-P2L)(XL)2 (X = O, N, CN, BL, Cl, SL, SeL, Br, or I) and Pt(η2-P2L)(η2-X2L) (X = OL, NL, SL or SeL). Graphical Abstract

中文翻译:

PtP2Si2 衍生物中的有机膦——结构方面

摘要 本文综述了具有 Pt(η2-P2L)(SiL)2、Pt(η2-P2L)(η2-Si2L) 和 Pt(η2-P,SiL) 内配位球的单体铂 (II) 配合物的结构数据。 )2 进行分类和分析。这些配合物在三个晶体系统中结晶:单斜晶系(8 个实例)、三斜晶系(4 个实例)和斜方晶系(4 个实例)。Pt(II) 原子周围的扭曲方形平面环境是由同质 P,P 与两个单齿 Si 供体配体的组合构成的;具有均质-Si、Si供体配体或异质-P、Si供体配体的均质-PP。螯合配体产生具有以下角度的金属环:65.0° (SiOSi) < 83.1° (SiC2Si) < 85.2° (PC2P) < 88.8° (SiSi2Si))。Pt(η2-P2L)·(SiL)2 复合物中的平均 Pt-P 和 Pt-Si 键距分别为 2.319 和 2.365 Å;在 Pt(η2-P2L)(η2-Si2L) 中,值分别为 2.316 和 2.360 Å。复合物 [Pt{η2-Me2P(C2B10H10)SiMe2}2] 以两种异构形式存在,即单斜顺式和三斜反式异构体。结构数据与内部配位球的复合物进行了比较和讨论:Pt(η2-P2L)(XL)2 (X = O、N、CN、BL、Cl、SL、SeL、Br 或 I) 和 Pt( η2-P2L)(η2-X2L)(X = OL、NL、SL 或 SeL)。图形概要
更新日期:2019-12-31
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