Fac-to- mer isomerization triggers hydride transfer from Mn(I) complex fac-[(dppm)Mn(CO)3H]

Elena S Osipova; Ekaterina S Gulyaeva; Nikolay V Kireev; Sergey A Kovalenko; Christian Bijani; Yves Canac; Dmitry A Valyaev; Oleg A Filippov; Natalia V Belkova; Elena S Shubina

doi:10.1039/d2cc00999d

Fac-to- mer isomerization triggers hydride transfer from Mn(I) complex fac-[(dppm)Mn(CO)₃H]

Chem Commun (Camb). 2022 Apr 19;58(32):5017-5020. doi: 10.1039/d2cc00999d.

Affiliations

¹ A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences, 28 Vavilov str., GSP-1, B-334, Moscow, 119991, Russia. h-bond@ineos.ac.ru.
² LCC-CNRS, Université de Toulouse, CNRS, 205 route de Narbonne 31077 Toulouse, Cedex 4, France. dmitry.valyaev@lcc-toulouse.fr.

PMID: 35373227
DOI: 10.1039/d2cc00999d

Abstract

Low-temperature IR and NMR studies combined with DFT calculations revealed the mechanistic complexity of apparently simple reactions between Mn(I) complex fac-[(dppm)Mn(CO)₃H] and Lewis acids (LA = Ph₃C⁺, B(C₆F₅)₃) involving the formation of so-far elusive meridional hydride species mer-[(dppm)Mn(CO)₃H⋯LA] and unusual dearomatization of the Ph₃C⁺ cation upon hydride transfer.