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Spin Transition and Exchange Interaction: Janus Visions of Supramolecular Spin Coupling between Face‐to‐Face Verdazyl Radicals
Author(s) -
Norel Lucie,
Rota JeanBaptiste,
Chamoreau LiseMarie,
Pilet Guillaume,
Robert Vincent,
Train Cyrille
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201101190
Subject(s) - supramolecular chemistry , diamagnetism , face (sociological concept) , spin (aerodynamics) , radical , vision , janus , chemistry , condensed matter physics , crystallography , chemical physics , materials science , nanotechnology , physics , sociology , quantum mechanics , crystal structure , organic chemistry , magnetic field , social science , thermodynamics , anthropology
Look both ways : Coordination bonding of verdazyl radicals to diamagnetic metal ions dramatically modifies the crystal packing of the electronic spin bearers. The face‐to‐face positioning of two radicals leads to a magnetic behavior that is more relevant to a S =0 to S =1 spin‐transition phenomenon than to the usual exchange‐interaction view.