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Vibrational and electronic structure of the dinuclear bis(mu-nitrido) vanadium(v) complex [V(N{N"}2)(mu-N)]2: spectroscopic properties of the M2(mu-N)2 diamond core
Authors:Studt Felix  Lamarche Vanessa M E  Clentsmith Guy K B  Cloke F Geoffrey N  Tuczek Felix
Institution:Institut für Anorganische Chemie der Christian Albrechts Universit?t zu Kiel, 24098 Kiel, Germany.
Abstract:The vibrational and electronic structure of the bis(mu-nitrido) bridged complex V(N{N"}2)(mu-N)]2 (1) (where N{N"}2](2-)=(Me3Si)N{CH(2)CH(2)N(SiMe3)}2](2-)) is analyzed. Assignment of the five modes of the V(2)(mu-N)2 core is based on (15)N isotope shifts and a DFT calculation on the calculated structure I which is an exact reproduction of 1. The three Raman active modes of the planar V(2)(mu-N)2 core are found in the Raman spectrum whereas the two IR allowed vibrations are identified in the infrared spectrum. Furthermore, the electronic structure of is described which complements earlier theoretical studies on the reaction pathway leading to 1(V. M. E. Bates, G. K. B. Clentsmith, F. G. N. Cloke, J. C. Green, H. D. L. Jenkin, Chem. Commun., 2000, 927). Based on the MO scheme of I the UV-vis transitions of 1 are assigned.
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