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Metal Dilution Effects on the Reverse Spin Transition in Mixed Crystals of Type [Co(1-x)Zn(x)(C16-terpy)2](BF4)2 (x =
Ryo Ohtani1, Saki Egawa1, Manabu Nakaya1
1Department of Chemistry, Graduate School of Science and Technology, Kumamoto University , 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555 Japan.
Abstract:
Metal dilution effects on reverse spin transition (rST) in mixed crystals of type [Co(1-x)Zn(x)(C16-terpy)2](BF4)2 (x = 0.1-0.7) were investigated by comparison with behavior of [Co(1-x)Fe(x)(C16-terpy)2](BF4)2 (x = 0.1-0.4). In the mixed crystals, the Zn complexes increased rST temperatures linearly with increasing values of x, without changing the hysteresis width, while the Fe complexes decreased rST temperatures. Moreover, the strength of the metal dilution effects in the CoZn mixed crystals is weaker than what occurs in the CoFe mixed crystals.
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