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Characterisation of the Six‐coordinated Octahedral Site in Cd(C 4 H 2 O 4 ) · 2H 2 O Crystals
Author(s) -
Ravikumar R. V. S. S. N.,
Reddy S. N.,
Rao S. N.,
Reddy B. J.,
Reddy Y. P.
Publication year - 1995
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170300820
Subject(s) - octahedron , ion , cobalt , liquid nitrogen , octahedral symmetry , nickel , crystallography , spectral line , chemistry , absorption spectroscopy , metal , transition metal , infrared spectroscopy , crystal structure , cadmium , crystal (programming language) , inorganic chemistry , optics , catalysis , programming language , organic chemistry , astronomy , computer science , biochemistry , physics
Optical absorption spectra of Co(II) and Ni(II) doped cadmium maleate dihydrate (CMDH) are recorded at room temperature and liquid nitrogen temperature. The UV–VIS–NIR spectra are characteristic of the transition metal ions in solids. The results and analyses of the spectra indicate near octahedral site symmetry for cobalt ion and trigonally distorted octahedral site symmetry for nickel ion. The following crystal field parameters are derived. The IR spectra are characteristic of the host lattice CMDH.