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Published August 9, 2011 | Published + Supplemental Material
Journal Article Open

Phosphido pincer complexes of platinum: synthesis, structure and reactivity

Abstract

A series of platinum(II) complexes supported by the tridentate bis(phosphine)phosphido ligand bis(2-diisopropylphosphinophenyl)phosphide) [iPr–PPP] have been synthesized and characterized (1–4). X-Ray structural studies of [iPr–PPP]PtCl (1) and [iPr–PPP]PtCH3 (3) complexes show meridional [iPr–PPP] ligands around approximately square-planar platinum centers. Structural data and NMR analysis highlight a strong trans influence for the phosphido phosphorous donor, comparable to that of the anionic aryl carbon of the classic PCP pincer complexes. A series of thermally stable [PPP]Pt(IV) compounds, including [PPP]Pt(CH_3)_2X [X = I (5) and SbF_6 (6)], were also synthesized. The study of the binding affinity of SO_2 and NO to complex 1 has also been addressed.

Additional Information

© 2011 The Royal Society of Chemistry. Received 03 May 2011, Accepted 27 Jul 2011. First published on the web 09 Aug 2011. This article is part of the collection: Pincers and other hemilabile ligands. The authors thank Dr Neal P. Mankad and Dr Matthew T. Whited for assistance with crystallographic studies (Institute of Technology, Pasadena, California), Patrizia Oliva for NMR assistance (University of Salerno) and Dr Consiglia Tedesco for useful discussions. JCP acknowledges CHE-0750234 for financial support. MM acknowledges FARB 2008 for financial support.

Attached Files

Published - Mazzeo2011p15835Dalton_Transactions.pdf

Supplemental Material - c1dt10825e.pdf

Supplemental Material - c1dt10825e.txt

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