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Infrared absorption studies on Ni(CN)/sub 4//sup 2 -/ doped NaCl crystals

Journal Article · · J. Chem. Phys.; (United States)
OSTI ID:7355359

Infrared absorption spectrum of NaCl crystals doped with Ni(CN)/sub 4//sup 2 -/ shows the presence of this complex in the crystal in C/sub 4//subv/ and C/sub 2//subv/ site symmetry corresponding to the cation vacancy in the <100> direction above the plane of the ion and along <110> direction in the plane of the ion, respectively. X irradiation of these crystals produces Ni(CN)/sub 4//subn//sup -/, where n=3,4, and 5, giving rise to Ni ion in 1/sup +/, 0/sup +/, and 1/sup -/ charge states, as shown by the new set of infrared bands. The infrared absorption from heat treated crystals give evidence for the migration of cation vacancies. (AIP)

Research Organization:
Solid State Physics Laboratory, Lucknow Road Delhi-110007, India
OSTI ID:
7355359
Journal Information:
J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 64:9; ISSN JCPSA
Country of Publication:
United States
Language:
English