CO Cleavage by Tantalum/M (M = Iridium, Osmium) Heterobimetallic Complexes

Overview

Journal Chem Commun (Camb)

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2024 Jul 10

PMID 38984492

Authors

Abdelhak Lachguar

Christopher Z Ye

Sheridon N Kelly

Erwann Jeanneau

Iker Del Rosal

Laurent Maron

Laurent Veyre

Chloe Thieuleux

John Arnold

Clement Camp

Affiliations

Soon will be listed here.

Abstract

A novel Ta/Os heterobimetallic complex, [Ta(CHBu)(μ-H)OsCp*], 2, is prepared by protonolysis of Ta(CHBu)(CHBu) with Cp*OsH. Treatment of 2 and its iridium analogue [Ta(CHBu)(μ-H)IrCp*], 1, with CO under mild conditions reveal the efficient cleavage of CO, driven by the formation of a tantalum oxo species in conjunction with CO transfer to the osmium or iridium fragments, to form Cp*Ir(CO)H and Cp*Os(CO)H, respectively. This bimetallic reactivity diverges from more classical CO insertion into metal-X (X = metal, hydride, alkyl) bonds.

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