TY - JOUR
T1 - Three Redox States of a Diradical Acceptor-Donor-Acceptor Triad: Gating the Magnetic Coupling and the Electron Delocalization
AU - Souto, Manuel
AU - Lloveras, Vega
AU - Vela, Sergi
AU - Fumanal, Maria
AU - Ratera, Imma
AU - Veciana, Jaume
PY - 2016/6/16
Y1 - 2016/6/16
N2 - © 2016 American Chemical Society. The diradical acceptor-donor-acceptor triad 1••, based on two polychlorotriphenylmethyl (PTM) radicals connected through a tetrathiafulvalene(TTF)-vinylene bridge, has been synthesized. The generation of the mixed-valence radical anion, 1•-, and triradical cation species, 1•••+, obtained upon electrochemical reduction and oxidation, respectively, was monitored by optical and ESR spectroscopy. Interestingly, the modification of electron delocalization and magnetic coupling was observed when the charged species were generated and the changes have been rationalized by theoretical calculations.
AB - © 2016 American Chemical Society. The diradical acceptor-donor-acceptor triad 1••, based on two polychlorotriphenylmethyl (PTM) radicals connected through a tetrathiafulvalene(TTF)-vinylene bridge, has been synthesized. The generation of the mixed-valence radical anion, 1•-, and triradical cation species, 1•••+, obtained upon electrochemical reduction and oxidation, respectively, was monitored by optical and ESR spectroscopy. Interestingly, the modification of electron delocalization and magnetic coupling was observed when the charged species were generated and the changes have been rationalized by theoretical calculations.
U2 - 10.1021/acs.jpclett.6b00912
DO - 10.1021/acs.jpclett.6b00912
M3 - Article
VL - 7
SP - 2234
EP - 2239
IS - 12
ER -