Triradical cation of p-phenylenediamine having two nitroxide radical groups: spin alignment mediated by delocalized spin

Journal of the American Chemical Society
Akihiro ItoKazuyoshi Tanaka

Abstract

The cationic state of a p-phenylenediamine (PDA) molecule having two nitroxide radical groups was prepared and characterized using electrochemical, electron spin resonance (ESR) spectroscopic, and absorption spectroscopic methods. The delocalized intervalence state of the p-phenylendiamine (PDA) moiety was detected in the cationic state. From the pulsed ESR measurements, it was confirmed that the delocalized spin induces parallel spin alignment between the localized two nitroxide groups which are magnetically weakly coupled in the neutral state. It was found that the resulting high-spin alignment does not seriously affect the delocalized intervalence state of the PDA radical cation.

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Citations

May 18, 2011·Chemical Reviews·Jihane Hankache, Oliver S Wenger
Aug 21, 2015·The Journal of Physical Chemistry. a·Tumpa SadhukhanSambhu N Datta
Jun 14, 2017·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Malcolm E TessensohnRichard D Webster
Sep 21, 2017·Physical Chemistry Chemical Physics : PCCP·Andrew PaliiEugenio Coronado
Mar 10, 2007·Angewandte Chemie·Osamu SatoYuan-Zhu Zhang
Mar 28, 2007·Angewandte Chemie·Yasukazu HiraoKazuyoshi Tanaka
Dec 25, 2019·Chemistry : a European Journal·Kubandiran Kolanji, Martin Baumgarten
Sep 30, 2017·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Malcolm E TessensohnRichard D Webster
Mar 7, 2013·The Journal of Organic Chemistry·Daisuke SakamakiKazuyoshi Tanaka
Nov 7, 2013·The Journal of Physical Chemistry. a·Akihiro ItoKazuyoshi Tanaka
Dec 5, 2012·The Journal of Physical Chemistry. B·Ewelina DobrzyńskaIrena Kulszewicz-Bajer
Jun 13, 2015·Inorganic Chemistry·Emmanuel Di PiazzaStéphane Rigaut
Nov 22, 2017·Inorganic Chemistry·Emmanuel Di PiazzaStéphane Rigaut

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