Rapid spin-state interconversion in the Bis-complex of tris-(1-pyrazolyl) methane with Fe(II) studied by Mössbauer spectroscopy

H. Winkler*, A. X. Trautwein, H. Toftlund

*Korrespondierende/r Autor/-in für diese Arbeit
20 Zitate (Scopus)

Abstract

Dynamic spin equilibrium is observed in a complex of the [Fe(II)-N6] type above room temperature. The Mössbauer lineshapes as function of temperature can be understood by means of the random-frequency-modulation model. Taking into accout the different Lamb-Mössbauer factors of the low- and high-spin state yields true populations of the two spin states. The transition rates follow rather well an Arrhenius law. With appropriate assumptions an activation energy ΔELH=18(1) kJmol-1 is deduced.

OriginalspracheEnglisch
ZeitschriftHyperfine Interactions
Jahrgang70
Ausgabenummer1-4
Seiten (von - bis)1083-1086
Seitenumfang4
ISSN0304-3843
DOIs
PublikationsstatusVeröffentlicht - 01.04.1992

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