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Acta Cryst. (2013). C69, 833-836  [ doi:10.1107/S0108270113018064 ]

catena-Poly[bis([mu]-2,2'-bipyridin-6-olato)-[kappa]3N,N':O;O:N,N'-dicopper(I,II) [[tetrafluoridoniobium(V)]-[mu]-oxido]]

Z.-G. Zhong, Y.-Q. Feng and P. Zhang

Synopsis: The structural unit consists of one C2-symmetric [NbOF4]- anion, where the NbV centre is five-coordinated by four F atoms and one O atom in the first coordination shell, forming a square-pyramidal coordination geometry, and of one centrosymmetric coordinated [Cu2(obpy)2]+ cation (obpy is 2,2'-bipyridin-6-olate), in which the oxidation state of each Cu site is disordered, which is confirmed by XPS results.

Formula: [Cu(C10H7N2O)][NbF4O]

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