Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 24, Issue 7, Pages 1464-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201704203
Keywords
density functional calculations; dihydrogen bonding; reaction mechanism; transition metal hydrides; Z-H bond activation
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Funding
- Russian Science Foundation [14-13-00801]
- Russian Science Foundation [14-13-00801] Funding Source: Russian Science Foundation
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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-Hd(delta-) center dot center dot center dot (delta+) 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 delta+ center dot center dot center dot 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.
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