Observation and evaluation of the synchronous ligand atom pyramidal inversions in binuclear rhenium carbonyl halide complexes of disulphides and diselenides: an X-ray crystal structure of [Re2Br2(CO)6(C6H5CH2SeSeCH2C6H5)] |
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| Authors: | Edward W Abel Suresh K Bhargava Maqbool M Bhatti Muhammed A Mazid Keith G Orrell Vladimir ?ik Michael B Hursthouse KM Abdul Malik |
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| Institution: | Department of Chemistry, University of Exeter, Exeter EX4 4QD Great Britain;Department of Chemistry, Queen Mary College, Mile End Road, London E1 4NS Great Britain |
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| Abstract: | The dinuclear complexes Re2X2(CO)6(RCH2EECH2R)] (X = Cl or Br, R = Ph or Me3Si, E = S or Se) have been prepared and characterized. A variable temperature 1H NMR study on these complexes demonstrated the pyramidal atomic inversion process at the coordinated sulphur and selenium atoms. Total band-shape fittings were used to yield activation parameters for the rate process, in which the two sulphur or selenium atoms undergo synchronous or correlated inversion. |
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