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Kolekcje
Inne
Spin transition and relaxation dynamics coupled to a crystallographic phase transition in a polymeric iron(II) spin-crossover system.
Autorzy
Rok wydania
2008
Czasopismo
Numer woluminu
455
Strony
192-196
DOI
10.1016/j.cplett.2008.02.088
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The spin-crossover compound [Fe(bbtr)3](ClO4)2(bbtr = 1,4-di(1,2,3-triazol-1-yl)butane) forms a poly-meric hexagonal sheet structure. It shows an abrupt thermal spin transition with 13 K wide hysteresisaround 105 K, as evidenced by single crystal optical spectroscopy. The transition temperature for thethermal high-spin?low-spin transition on cooling as well as the relaxation kinetics just belowTc;dependupon the history of the sample. This is typical for a nucleation and growth mechanism and domain for-mation. In contrast, the high-spin?low-spin relaxation following the light-induced population of thehigh-spin state at low temperatures is governed by the intersystem crossing process.
Adres publiczny
https://doi.org/10.1016/j.cplett.2008.02.088
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