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EPR and optical absorption studies of copper ions in diglycine calcium chloride tetrahydrate
1Department of Physics, University of Allahabad, Allahabad 211002, India. ram_kripal2001@rediffmail.com
Abstract:
EPR study of copper ions in diglycine calcium chloride tetrahydrate (DGCCT), [(NH(2)CH(2)COOH)(2).CaCl(2).4H(2)O] single crystals at room temperature is carried out. The spin Hamiltonian parameters of copper ions are determined as: g(x)=2.0238+/-0.0002, g(y)=2.1122+/-0.0002, g(z)=2.2250+/-0.0002, A(x)=(83+/-2)x10(-4)cm(-1), A(y)=(86+/-2)x10(-4)cm(-1) and A(z)=(118+/-2)x10(-4)cm(-1). The optical study of the single crystals at room temperature is also done and the bands are assigned to d-d and charge transfer transitions. Using above data, the nature of bonding in the complex is discussed.
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