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'Jahn Teller Effect' in keywords Facet   Publication Year 1987  [X]
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1987[X]
1Author    Bernd Jakob, Dirk ReinenRequires cookie*
 Title    The Temperature-Variable Geometry of the Pseudo-Octahedral Cu06 Entity in Bis(methoxyacetato)diaquo-Copper(II) -a Single Crystal EPR Study  
 Abstract    The Cu —O bond lengths in the pseudooctahedral bis(methoxyacetato)diaquo-copper(II) com­ plex are determined by the Jahn-Teller effect on the one hand and by the bonding properties of the three different oxygen ligator atoms (from a carboxylate. water and ether group) on the other. It is derived from E PR single crystal and powder investigations between 4.2 and 350 K, that the system becomes fluxional above —120 K due to a continuous transition from a static to a (par­ tially) dynamic Jahn-Teller distortion. A model is presented, which allows to correlate the EPR results with the C u —O spacings, if they are calibrated with structural data at two different temperatures. The structure of the ground state potential surface of Cu2+ is derived from the spectroscopic data. 
  Reference    Z. Naturforsch. 42b, 1500—1506 (1987); received June 25 1987 
  Published    1987 
  Keywords    Jahn-Teller Effect, Fluxionality, E PR Spectra Copper(II) Complex 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-1500.pdf 
 Identifier    ZNB-1987-42b-1500 
 Volume    42