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High-spin -> low-spin relaxation kinetics and cooperative effects in the hexakis(1-propyltetrazole)iron bis(tetrafluoroborate) and [Zn1-xFex(ptz)6](BF4)2 (ptz = 1-propyltetrazole) spin-crossover systems

Authors
Guetlich, Philipp
Spiering, Hartmut
Published in Inorganic chemistry. 1986, vol. 25, no. 23, p. 4245-4248
Abstract [Fe(ptz)6l(BF4)2 (ptz= 1-propyltetrazole) and the mixed crystals [Znl,Fe,(ptz)6] (BF4)2 are Fe(I1) spin-crossover compoundsthat exhibit light-induced excited-spin-state trapping. It is shown that (a) for x I 0.1 a single-ion treatment of both the spinequilibrium ( M H L = 510 (12) cm-', ASHL = 5.1 (2) cm-'/K at T = 100 K) and the relaxation from the excited high-spin state (.Eao = 810 (30) cm-I, A - 105/s) is appropriate and (b) for 0.2 I x I 1 cooperative effects observed in the relaxation from the high-spin state are of long-range nature and therefore of elastic rather than of electronic origin.
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Research group Groupe Hauser
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HAUSER, Andreas, GUETLICH, Philipp, SPIERING, Hartmut. High-spin -> low-spin relaxation kinetics and cooperative effects in the hexakis(1-propyltetrazole)iron bis(tetrafluoroborate) and [Zn1-xFex(ptz)6](BF4)2 (ptz = 1-propyltetrazole) spin-crossover systems. In: Inorganic Chemistry, 1986, vol. 25, n° 23, p. 4245-4248. doi: 10.1021/ic00243a036 https://archive-ouverte.unige.ch/unige:3095

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Deposited on : 2009-09-21

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