UNIGE document Book Chapter
previous document  unige:3943  next document
add to browser collection
Title

Light-induced spin crossover and the high-spin→low-spin relaxation

Author
Published in Topics in current chemistry. Vol. 234 : spin crossover in transition metal compounds II. Berlin: Springer. 2004, p. 786
Abstract The discovery of a light-induced spin transition at cryogenic temperatures in a series of iron(II) spin-crossover compounds in 1984 has had an enormous impact on spin-crossover research. Apart from being an interesting photophysical phenomenon in its own right, it provided the means of studying the dynamics of the intersystem crossing process between the high-spin and the low-spin state in a series of compounds and over a large temperature range. It could thus be firmly established that intersystem crossing in spin-crossover compounds is a tunnelling process, with a limiting low-temperature lifetime below 50 K and a thermally activated region above 100 K. This review begins with an elucidation of the mechanism of the light-induced spin transition, followed by an in depth discussion of the chemical and physical factors, including cooperative effects, governing the lifetimes of the light-induced metastable states.
Keywords Thermal and light-induced spin crossoverHigh-spinrarrlow-spin relaxationIntersystem crossingExternal pressureChemical pressureCooperative effectsIron(II) complexes
Identifiers
Full text
Structures
Citation
(ISO format)
HAUSER, Andreas. Light-induced spin crossover and the high-spin→low-spin relaxation. In: Topics in current chemistry. Vol. 234 : spin crossover in transition metal compounds II. Berlin : Springer, 2004. p. 786. doi: 10.1007/b95416 https://archive-ouverte.unige.ch/unige:3943

514 hits

0 download

Update

Deposited on : 2009-10-30

Export document
Format :
Citation style :