Unusual spin-transition anomaly in the crossover system [Fe(2-pic)3]Cl2·EtOH |
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| Authors: | H Köppen EW Müller CP Köhler H Spiering E Meissner P Gütlich |
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| Institution: | Institut für Anorganische und Analytische Chemie, Johannes Gutenberg-Universität, D-6500 Mainz, West Germany |
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| Abstract: | The spin transition in Fe(2-pic)3]Cl2·EtOH (2-pic = 2-picolylamine) has been reinvestigated by Mössbauer spectroscopy and magnetic susceptibility measurements. With both techniques we see a “two-step” spin conversion in the crossover region with transition temperatures at 120.7 and 114.0 K. This has never been reported for any other spin crossover system. The quadrupole splittings for both spin states change abruptly in the range of the transition. |
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