Abstract
The EPR spectrum of Mn 2+ doped Cadmium Maleate Dihydrate has been analysed. Mn 2+ is found to enter the host lattice interstitially and exhibit distorted octahedral symmetry. From the optical absorption studies, the distortion has been suggested to be trigonal. The values of the zero field parameters that give good fit to the observed EPR spectra are D=320, a=15 and F=5 (all in the units of cm −1). The values of isotropic g-factor and the hyperfine coupling constant are respectively 2.0032 and 94×10 −4 cm −1. The electron repulsion and crystal field parameters that give good fit to the observed optical spectra are B=800, C=3040 and Dq=760 (all in units of cm -1). The percentage of covalency of the Mn-O bond has been estimated to be approximately 5.
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