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Synthesis and DFT Study of a Diphenylsilanone‐Bridged Dimolybdenum Complex
Author(s) -
Alvarez M. Angeles,
García M. Esther,
GarcíaVivó Daniel,
Menéndez Sonia,
Ruiz Miguel A.
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.201601598
Subject(s) - chemistry , silylene , crystallography , solid state , ring (chemistry) , ligand (biochemistry) , computational chemistry , photochemistry , silicon , organic chemistry , biochemistry , receptor
Reaction of the 30‐electron benzylidyne complex [Mo 2 Cp 2 (μ‐CPh)(μ‐PCy 2 )(μ‐CO)] with excess Ph 2 SiH 2 under visible‐UV irradiation yields the silylene‐bridged complex [Mo 2 Cp 2 (μ‐CPh)(μ‐PCy 2 )(μ‐SiPh 2 )]. This compound undergoes selective oxidation with O 2 to give the unsaturated complex [Mo 2 Cp 2 (μ‐CPh)(μ‐PCy 2 )(μ‐κ 1 :κ 1 ‐OSiPh 2 )], which contains an unprecedented bridging diphenylsilanone ligand, as confirmed by X‐ray diffraction analysis and DFT calculations. The bonding within the central Mo 2 SiO ring of this complex approaches the extreme description of a dimetallacyclosiloxane according to the relevant solid‐state bond lengths and theoretical calculations.