材料期刊网

The local octahedral environment of Ni2+ in NiTiF6 center dot 6H(2)O and ZnSiF6 center dot 6H(2)O crystals with a trigonal distortion has been studied at different temperatures, based on the complete energy matrices. The calculated results showed that the local lattice structure around an octahedral Ni2+ centre in NiTiF6 center dot 6H(2)O and ZnSiF6 center dot 6H(2)O exhibits at compression distortion. Simultaneously, the orbital reduction effect on the g factors has been studied. The relationship between Ag =g(parallel to) -g(perpendicular to) and orbital reduction fractor k at 4.2.77 and 298 (302) K has been discussed. suggesting, that there is an almost linear relation between k and Delta g in Ni2+ ion in NiTiF6 center dot 6H(2)O and ZnSiF6 center dot 6H(2)O at each temperature.