EPR of manganese(II) in tetramethylammonium tetrachlorozincate(II)

Chandrasekhar, J. ; Chandra Kumar, N. ; Subramanian, S. (1975) EPR of manganese(II) in tetramethylammonium tetrachlorozincate(II) Journal of Magnetic Resonance (1969), 18 (1). pp. 129-138. ISSN 0022-2364

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Related URL: http://dx.doi.org/10.1016/0022-2364(75)90231-0


EPR spectra of Mn(II) in the tetrahedral crystal field of chloride ions in single crystals of tetramethylammoniumtetrachlorozincate(II) is reported. The presence of two magnetically distinct sites has been correlated with the host lattice ZnCl42- local geometry. The spin-Hamiltonian parameters for this high-spin d5 system are g = 2.0023; A = -82.0 G, B =-80 G; A=-10.7 G; D= +130.8G and F=+4.8G. The absolute sign of the cubic field splitting parameter a is discussed. Two low temperature phase transitions have been detected.

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