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A Functional Nitroxide Radical Displaying Unique Thermochromism and Magnetic Phase Transition
Author(s) -
Matsumoto Sachiko,
Higashiyama Tsutomu,
Akutsu Hiroki,
Nakatsuji Shin'ichi
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.201104068
Subject(s) - thermochromism , nitroxide mediated radical polymerization , antiferromagnetism , bistability , dimer , phase transition , hysteresis , materials science , condensed matter physics , phase (matter) , monomer , chemistry , polymer , optoelectronics , radical polymerization , physics , organic chemistry , composite material
Thermochromic nitroxide : A nitroxide radical (AZADO) exhibits thermochromism with a structural change from a dimer at low temperature (4 °C) to paired monomers with large antiferromagnetic interaction at high temperature (35 °C). An hysteresis loop is observed in the magnetic data of this compound, revealing it to exhibit a first‐order phase transition with room‐temperature magnetic bistability.