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Vibrational spectroscopic studies of 4,4′-bipyridyl metal(II) tetracyanonickelate complexes and their clathrates

Abstract

The infrared spectra of M(4,4′-bipyridyl)Ni(CN)4 complexes (M=Ni or Cd) and their dioxane, benzene, toluene, aniline andN,N-dimethylaniline clathrates are reported. Additional information regarding the structure of the host lattice is obtained from the Raman spectra of the M=Cd complex. It is shown that the structure of the host lattice consists of infinite polymeric layers of {M-Ni(CN)4} analogous to those of Hofmann type clathrates that have tetragonal symmetry. Bidentate 4,4′-bipyridyl molecules form bridges between the metal atoms {M} in the adjacent {M-Ni(CN)4} layers. It is found that the 4,4′-bipyridyl molecules are centrosymmetric in this structure.

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Correspondence to Sevim Akyüz.

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Sungur, A., Akyüz, S. & Davies, J.E.D. Vibrational spectroscopic studies of 4,4′-bipyridyl metal(II) tetracyanonickelate complexes and their clathrates. Journal of Inclusion Phenomena 5, 491–497 (1987). https://doi.org/10.1007/BF00664107

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Key words

  • IR and Raman spectra
  • 4,4′-bipyridyl
  • tetracyanonickelate clathrates