Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1994-02-09
1996-10-08
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546199, 546256, 548433, C07D21322, C07D48702
Patent
active
055632734
ABSTRACT:
An electrochemical color change cell incorporating as a color changing agent intramolecular charge transfer salt or an intermolecular charge transfer salt. The intermolecular charge transfer salts and the intramolecular charge transfer salts have a plurality of oxidation states and a wide variation in color change. The intermolecular and intramolecular charge transfer salts preferably contain a violene moiety and a moiety having a carbonyl group conjugated to an aromatic moiety. The intramolecular charge transfer salts have a stable covalent radical-anion/radical-cation configuration. The intermolecular charge transfer salts have a stable ionic radical-anion/radical-cation configuration.
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Buchwalter Stephen L.
Goldberg Martin J.
Iyengar Revathi
O'Toole Terrence R.
Viehbeck Alfred
Higel Floyd D.
International Business Machines - Corporation
Morris Daniel P.
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