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Thermal and Light‐Induced Spin Crossover to a Metastable Low‐Spin State in [Fe(mtz) 6 ](CF 3 SO 3 ) 2
Author(s) -
Gütlich Philipp,
Poganiuch Peter
Publication year - 1991
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199109751
Subject(s) - metastability , intersystem crossing , spin crossover , spin (aerodynamics) , spin transition , spin states , irradiation , state (computer science) , condensed matter physics , thermal , physics , materials science , atomic physics , chemistry , excited state , thermodynamics , nuclear physics , quantum mechanics , singlet state , algorithm , computer science
Irradiation by red light at T ≲ 40 K induces the transition of the stable high‐spin state of 1 to a metastable low‐spin state, which, at T < 40 K, has a lifetime of days to weeks, The transition occurs via double intersystem crossing, 5 T 2 → 5 E → 3 T 1 → 1 A 1 . Compound 1 is only the second compound to show this effect.