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Stereochemistry of Pt(η2-P2L)Cl2 derivatives

  • Milan Melník EMAIL logo and Peter Mikuš
Published/Copyright: December 5, 2019

Abstract

The coordination chemistry of platinum (Pt) covers a huge field as shown by a recent survey covering the crystallographic and structural data of almost 200 monomeric examples of the Pt(η2-P2L)Cl2 type. About 20% of these complexes exist as isomers and are discussed in this review. Included are distortion (64%), cis-trans (20%), and ligand (16%) isomers. These are discussed in terms of the metallocyclic rings, and coordinations are drawn between donor atoms, bond lengths, and interbond angles, with attention to any trans-influence. Distortion isomers, differing only by the degree of distortion in Pt-L and L-Pt-L angles, are the most numerous. In this series of distortion and ligand isomers, the square-planar configuration about the Pt(II) atom has only cis-configuration. The total mean values of Pt-L bond distances (cis- vs. trans-configuration) are 2.228 Å (P) and 2.353 Å (Cl) vs. 2.312 (P) and 2.302 Å (Cl).

Acknowledgments

This work was supported by projects VEGA 1/0463/18 and APVV-15-0585, Funder Id: http://dx.doi.org/10.13039/501100003194.

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Received: 2019-07-23
Accepted: 2019-10-10
Published Online: 2019-12-05
Published in Print: 2019-12-18

©2019 Walter de Gruyter GmbH, Berlin/Boston

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