Structures of Pt(0)P3, Pt(0)P4 and Pt(II)P4 – Distortion isomers
Author:
Melník Milan1, Mikuš Peter12
Affiliation:
1. Comenius University in Bratislava, Faculty of Pharmacy, Department of Pharmaceutical Analysis and Nuclear Pharmacy , Odbojárov 10, SK-832 32 Bratislava , Slovak Republic 2. Comenius University in Bratislava, Faculty of Pharmacy, Toxicological and Antidoping Center , Odbojárov 10, SK-832 32 Bratislava , Slovak Republic
Abstract
Abstract
In this review are analyzed and classified crystallographic and structural parameters of P(0)P3, Pt(0) P4 and Pt(II)P4 derivatives – distortion isomers. Some of the isomers are differing not only by degree of distortion but also by crystal class. There are three types of organo-phosphines which build up the respective geometry about the platinum atoms. In Pt(0)P3 a distorted trigonal planar geometry is build up by three monodentate PPh3 ligands. In Pt(0)P4 a tetrahedral geometry with various degree of distortion is build up by a pair of homo-bidentate ligands. In Pt(II)P4 isomers a square-planar geometries with various degree of distortion are build up by bidentate-P,P’donor ligands, (except one example of isomers, where a tetradentate is involved). The bidentate-P,P’-donor ligands form: four-(PNP,PCP), five-(PC2P) and six-(PC3P) metallocyclic rings. The tetradentate forms five-(PC2P). There are some cooperative effects between Pt–P bond distances and the metallocyclic rings, and at the same time a distortion of the respective geometry increases.
Publisher
Walter de Gruyter GmbH
Subject
Materials Chemistry,Metals and Alloys,Condensed Matter Physics,General Chemistry
Reference18 articles.
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