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Z−H Bond Activation in (Di)hydrogen Bonding as a Way to Proton/Hydride Transfer and H 2 Evolution
Author(s) -
Belkova Natalia V.,
Filippov Oleg A.,
Shubina Elena S.
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201704203
Subject(s) - hydride , proton , hydrogen bond , hydrogen , materials science , chemistry , crystallography , physics , molecule , nuclear physics , organic chemistry
The ability of neutral transition‐metal hydrides to serve as a source of hydride ion H − or proton H + is well appreciated. The hydride ligands possessing a partly negative charge are proton accepting sites, forming a dihydrogen bond, M−H δ− ⋅⋅⋅ δ+ HX (M=transition metal or metalloid). On the other hand, some metal hydrides are able to serve as a proton source and give hydrogen bond of M−H δ+ ⋅⋅⋅X type (X=organic base). In this paper we analyse recent works on transition‐metal and boron hydrides showing i) how formation of an intermolecular complex between the reactants changes the Z−H (M−H and X−H) bond polarity and ii) what is the implication of such activation in the mechanisms of hydrides reactions.