Journal
SYNTHETIC METALS
Volume 120, Issue 1-3, Pages 871-872Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0379-6779(00)00798-0
Keywords
organic conductors based on radical cation and/or anion salts; magnetic measurements; heterocycle synthesis
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The preparation and characterization of new organic radical anions TEMPO-NHSO3- (tsfa) and TEMPO-OSO3- (tosu), which consist of the organic stable radical (TEMPO) and the anionic functional group (-NHSO3- or -OSO3-), has been investigated. The molecular and crystal structures of bis(triphenylphosphoranylidene)ammonium determined by X-ray analysis indicate that tsfa exists as a monovalent anion. Black powders of the TTF(.)tsfa and TTF(.)tosu salts were obtained, in each of which the donor to anion ratio is found to be 1 : 1 by elemental analysis. TTF(.)tsfa shows a weak antiferromagnetic interaction with C = 0.360 emu M mol(-1) and theta = -0.52 K.
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