Electron spin resonance and optical absorption studies of Cu2+ doped in potassium hydrogen maleate single crystals

Ziegelhoeffer A.; De Jong J.W.; Ferrari R.; Turi Nagy L.

Journal of Molecular Structure 82(3-4): 251-257


ISSN/ISBN: 0022-2860
DOI: 10.1016/0022-2860(82)80040-9
Accession: 061668235

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The results of electron spin resonance studies on Cu2+ doped in potassium hydrogen maleate single crystals at 300 K are presented. The spin Hamiltonian parameters evaluated indicate a square planar environment for Cu2+ ion in this lattice. From the crystal structure data and the direction cosines of the principal axes of the g tensor, it is concluded that the Cu2+ ion enters the lattice in an interstitial position. Charge compensation is achieved by the release of protons. Using the optical absorption and Esr data, bonding parameters and orbital reduction factors are also evaluated.