Concurrent changes of crystallographic and Mössbauer effect parameters at the high-spin(5T2) ⤥ low-spin(1A1) transition in compounds of iron (II) |
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| Authors: | W Irler G Ritter E König HA Goodwin SM Nelson |
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| Institution: | Physikalisches Institut II and Institut für Physikalische und Theoretische Chemie, Universität Erlangen-Nürnberg, D-8520 Erlangen, West Germany;School of Chemistry, University of New South Wales, Kensington, N.S.W. 2033, Australia;Department of Chemistry, Queen''s University, Belfast BT9 5AG, Northern Ireland |
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| Abstract: | Distinct and different X-ray diffraction patterns are found for the 5T2 and 1A1 phases at the high-spin(5T2) ? low-spin(1A1) transition in Fe(bt)2(NCS)2 (I) and Fe(phy)2(ClO4)2 (II) (bt = 2,2′-bi-2-thiazoline; phy = 1,10-phenanthroline-2-carbaldehydephenylhydrazone). The peak profiles show the same temperature dependence and the same hysteresis behaviour as the 5T2 and 1A1 fractions determined on the basis of Mössbauer effect or magnetism. At the transition temperature Tc, both phases are coexistent. |
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