Sulfonium cations as versatile strongly π-acidic ligands

Ruiping Li, Nitsan Barel, Vasudevan Subramaniyan, Orit Cohen, Françoise Tibika, Yuri Tulchinsky*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

More than a century old, sulfonium cations are still intriguing species in the landscape of organic chemistry. On one hand they have found broad applications in organic synthesis and materials science, but on the other hand, while isoelectronic to the ubiquitous tertiary phosphine ligands, their own coordination chemistry has been neglected for the last three decades. Here we report the synthesis and full characterization of the first Rh(i) and Pt(ii) complexes of sulfonium. Moreover, for the first time, coordination of an aromatic sulfonium has been established. A thorough computational analysis of the exceptionally short S-Rh bonds obtained attests to the strongly π-accepting nature of sulfonium cations and places them among the best π-acceptor ligands available today. Our calculations also show that embedding within a pincer framework enhances their π-acidity even further. Therefore, in addition to the stability and modularity that these frameworks offer, our pincer complexes might open the way for sulfonium cations to become powerful tools in π-acid catalysis.

Original languageAmerican English
Pages (from-to)4770-4778
Number of pages9
JournalChemical Science
Volume13
Issue number17
DOIs
StatePublished - 14 Mar 2022

Bibliographical note

Publisher Copyright:
© 2022 The Royal Society of Chemistry

Fingerprint

Dive into the research topics of 'Sulfonium cations as versatile strongly π-acidic ligands'. Together they form a unique fingerprint.

Cite this