Präparative und spektroskopische Untersuchungen zur Dimorphie von CsNiF3.

Preparative and Spectroscopic Investigations on the Dimorphy of CsNiF3

R. Haegele 1 , D. Babel 1 ,  and D. Reinen 1
  • 1 Sonderforschungsbereich 127 und Fachbereich Chemie der Universität Marburg

While the stable modification of CsNiF3 is of green colour, a yellow phase is obtained by fluorination of CsNiCl3 and decomposition of the product “CsNiF4”, which contains Ni4+ and Ni3+ besides Ni2+. The two modifications have the 2L- and 9L-perovskite-structure, respectively, and are characterized by their X-ray patterns and low-temperature ligand field spectra. The differences in colours and spectral band positions are discussed with respect to the Ni-F-Ni bond angles

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Zeitschrift für Naturforschung B is an international scientific journal which publishes original papers, microreviews, and letters from all areas of inorganic chemistry, solid state chemistry, coordination chemistry, molecular chemistry, and organic chemistry.