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Synthesis, Structure, and Catalytic Studies of Palladium and Platinum Bis-Sulfoxide Complexes


Drinkel, Emma E; Wu, Linglin; Linden, Anthony; Dorta, Reto (2014). Synthesis, Structure, and Catalytic Studies of Palladium and Platinum Bis-Sulfoxide Complexes. Organometallics, 33(3):627-636.

Abstract

The bis-sulfoxide ligand p-tolyl-binaso and its derivatives can be used to synthesize neutral and cationic palladium and platinum complexes. Various Pt bis-sulfoxide complexes could be made by using the precursor Pt{(M,SS,SS)-p-tolyl-binaso}Cl2 (5a) and abstracting the chlorides with silver salts. The Pd analogue of this compound (4) could not be used in the same way. In this case, the sulfoxides appear to be very weakly coordinated and different methods to make stable Pd bis-sulfoxide complexes had to be found. The nature of the bonding in the synthesized compounds was studied through analysis of their IR and NMR spectra and X-ray crystal structures. These studies revealed that the trans effect of other ligands in the complex is quite significant in determining the lability of the metal–sulfoxide bond. Some of the more stable platinum structures were then tested for their activity as catalysts in hydroboration and diboration reactions.

The bis-sulfoxide ligand p-tolyl-binaso and its derivatives can be used to synthesize neutral and cationic palladium and platinum complexes. Various Pt bis-sulfoxide complexes could be made by using the precursor Pt{(M,SS,SS)-p-tolyl-binaso}Cl2 (5a) and abstracting the chlorides with silver salts. The Pd analogue of this compound (4) could not be used in the same way. In this case, the sulfoxides appear to be very weakly coordinated and different methods to make stable Pd bis-sulfoxide complexes had to be found. The nature of the bonding in the synthesized compounds was studied through analysis of their IR and NMR spectra and X-ray crystal structures. These studies revealed that the trans effect of other ligands in the complex is quite significant in determining the lability of the metal–sulfoxide bond. Some of the more stable platinum structures were then tested for their activity as catalysts in hydroboration and diboration reactions.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:2014
Deposited On:02 Apr 2014 08:51
Last Modified:05 Apr 2016 17:47
Publisher:American Chemical Society
ISSN:0276-7333
Funders:Alfred Werner Foundation, SNF, Roche Research Foundation, University of Zurich, University of Western Australia.
Additional Information:This paper has a published correction/addition to it. See dx.doi.org/10.1021/om4011615, Organometallics, 2014, 33, 829-830. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Organometallics, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/om4000067.
Publisher DOI:https://doi.org/10.1021/om4000067
Related URLs:http://dx.doi.org/10.1021/om4011615
Permanent URL: https://doi.org/10.5167/uzh-94542

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