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Alkaline Earth–Olefin Complexes with Secondary Interactions
Author(s) -
Roşca SorinClaudiu,
Dinoi Chiara,
Caytan Elsa,
Dorcet Vincent,
Etienne Michel,
Carpentier JeanFrançois,
Sarazin Yann
Publication year - 2016
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.201601096
Subject(s) - olefin fiber , steric effects , alkaline earth metal , strontium , chemistry , dissociation (chemistry) , agostic interaction , covalent bond , computational chemistry , stereochemistry , alkali metal , organic chemistry , catalysis , metal
Strontium and calcium (alkaline earth: Ae) olefin complexes stabilised by secondary Ae⋅⋅⋅F−C and β‐agostic Ae⋅⋅⋅H−Si interactions are presented. Olefin coordination onto the alkaline earths is plain in the solid state, and it is thermodynamically favoured over the coordination of THF. The existence of the Ae⋅⋅⋅olefin interactions is corroborated by solution NMR data and DFT computations. The coordination mode of the olefin varies with steric effects and, if enforced, olefin dissociation can be compensated by the other non‐covalent interactions, as supported by DFT computations.