Investigations on the spin-crossover complex [Fe(bzimpy)2](ClO4)2 and its Mn2+, Co2+, Ni2+ and Zn2+ analogues

Autor:	B. Strauß, Viktor Gutmann, Wolfgang Linert
Rok vydání:	1993
Předmět:	Ligand field theory Spin states Chemistry Analytical chemistry General Chemistry Spectral line Metal Crystallography chemistry.chemical_compound Transition metal Spin crossover visual_art Pyridine visual_art.visual_art_medium Spectroscopy
Zdroj:	Monatshefte für Chemie - Chemical Monthly. 124:391-399
ISSN:	1434-4475 0026-9247
DOI:	10.1007/bf00814135
Popis:	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 Δ0 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.
Databáze:	OpenAIRE
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