Issue 9, 2017

Mononuclear and dinuclear trimethylplatinum(iv) iodide complexes of 3-substituted pyridines

Abstract

Reaction of tetrameric trimethylplatinum(IV) iodide with an excess of 3-substituted pyridines in chloroform afforded mononuclear complexes, [PtMe3L2I] (L = 3-CNpy, 3-Brpy, 3-MeOpy, 3-Mepy and 3-Etpy). The complexes were characterized by 1H NMR, CHN analysis and X-ray single crystal structure analysis. The mononuclear complexes undergo reaction with trimethylplatinum(IV) iodide in chloroform to form the corresponding dinuclear forms (both syn and anti). A comparison of both the mononuclear and dinuclear forms in solution for a particular pyridine substituent has been studied in detail with the help of 1H NMR spectroscopy, ably supported by DFT computational studies. The investigation further shows the influence of the pyridine substituent on controlling the mode of the reaction. The crystal structures of two dinuclear complexes, syn-[PtMe3(3-CNpy)I]2 and anti-[PtMe3(3-Brpy)I]2, have also been described here.

Graphical abstract: Mononuclear and dinuclear trimethylplatinum(iv) iodide complexes of 3-substituted pyridines

Supplementary files

Article information

Article type
Paper
Submitted
30 Jan 2017
Accepted
29 Mar 2017
First published
29 Mar 2017

New J. Chem., 2017,41, 3498-3507

Mononuclear and dinuclear trimethylplatinum(IV) iodide complexes of 3-substituted pyridines

B. N. Ghosh, S. Schlecht, A. Bauzá and A. Frontera, New J. Chem., 2017, 41, 3498 DOI: 10.1039/C7NJ00337D

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