Investigations on the spin-crossover complex [Fe(bzimpy)2](ClO4)2 and its Mn2+, Co2+, Ni2+ and Zn2+ analogues |
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| Authors: | B Strauß V Gutmann W Linert |
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| Institution: | (1) Institute of Inorganic Chemistry, Technical University of Vienna, A-1060 Vienna, Austria |
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| Abstract: | Summary A series of transition metal complexes M(bzimpy)2](ClO4)2 (M=Mn2+, Fe2+, Co2+, Ni2+, Zn2+;bzimpy=2,6-bis(benzimidazol-2 -yl)pyridine) was synthesized and characterized by elemental analysis, UV-Vis and far-IR spectroscopy. The electronic spectra of Ni(bzimpy)2](ClO4)2 in solution and solid state reveal a ligand field splitting parameter  0 in the range of 11470 cm–1 to 11840 cm–1. The simultaneous existence of two species with distinct spin state is found for Fe(bzimpy)2](ClO4)2 by means of variable temperature far-IR measurements. Assignments of the observed far-IR bands are given on the basis of the investigations of the variation of the metal ion in M(bzimpy)2](ClO4)2.This paper is dedicated to Professor Ulrich Wannagat on the occasion of his 70th birthday with warmest personal wishes. |
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| Keywords: | 2 6-bis(benzimidazol-2 -yl)pyridine" target="_blank">gif" alt="prime" align="BASELINE" BORDER="0">-yl)pyridine Spin-crossover Transition metal complexes |
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