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Cover Picture: Mixed Spin‐State [HS‐LS] Pairs in a Dinuclear Spin‐Transition Complex: Confirmation by Variable‐Temperature 57 Fe Mössbauer Spectroscopy (Angew. Chem. Int. Ed. 16/2008)
Author(s) -
Grunert C. Matthias,
Reiman Sergey,
Spiering Hartmut,
Kitchen Jonathan A.,
Brooker Sally,
Gütlich Philipp
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200890067
Subject(s) - spin crossover , cover (algebra) , mössbauer spectroscopy , spin states , spectroscopy , spin (aerodynamics) , spin transition , crystallography , chemistry , condensed matter physics , physics , inorganic chemistry , thermodynamics , quantum mechanics , mechanical engineering , engineering
Spin crossover in the highly constrained, doubly triazole‐bridged complex [Fe II 2 (pmat) 2 ](BF 4 ) 4 ⋅DMF is shown by standard, easily accessible, temperature‐dependent Mössbauer spectroscopy to proceed via a low‐spin/high‐spin [LS‐HS] species and not a 1:1 mixture of [LS‐LS]:[HS‐HS] species. S. Brooker, P. Gütlich, and co‐workers reveal in their Communication on page 2997 ff. that, without resorting to magnetic‐field measurements, the subtle differences between HS Fe II in a [HS‐HS] pair and in a [LS‐HS] pair can be identified.
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