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Synthesis and Characterisation of a Dioxo‐μ‐Oxo Molybdenum Dimer: An Unusual case of a μ‐Oxo Conformational Equilibrium
Author(s) -
Arzoumanian Henri,
Bakhtchadjian Robert,
Agrifoglio Giuseppe,
Krentzien Heinz,
Daran JeanClaude
Publication year - 1999
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/(sici)1099-0682(199912)1999:12<2255::aid-ejic2255>3.0.co;2-n
Subject(s) - chemistry , dimer , conformational isomerism , molybdenum , ligand (biochemistry) , crystallography , nuclear magnetic resonance spectroscopy , crystal structure , bipyridine , stereochemistry , spectroscopy , molecule , inorganic chemistry , organic chemistry , receptor , biochemistry , physics , quantum mechanics
A new thiocyanatomolybdenum(VI) dioxo‐μ‐oxo complex dimer bearing a 4,4′‐di‐ tert‐ butyl‐2,2′‐bipyridine ligand ( 2 ) is shown to exist in the crystal cell unit as a meso (Mo‐O–Mo angle of 180°) and d,l, pair (Mo–O–Mo angle of 155.7°). These conformers are in equilibrium in solution and have been observed clearly by 1 H NMR spectroscopy.