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Spin-triplet excitons in 1,3-diphenyl-7-(fur-2-yl)-1,4-dihydro-1,2,4-benzotriazin-4-yl

Constantinides, Christos P., Carter, Emma, Murphy, Damien Martin, Manoli, Maria, Leitus, Gregory M., Bendikov, Michael, Rawson, Jeremy M. and Koutentis, Panayiotis A. 2013. Spin-triplet excitons in 1,3-diphenyl-7-(fur-2-yl)-1,4-dihydro-1,2,4-benzotriazin-4-yl. Chemical Communications 49 (77) , pp. 8662-8664. 10.1039/c3cc44899a

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7-(Fur-2-yl)benzotriazinyl 1 is the first example of a hydrazyl radical dimer with a thermally accessible triplet state. The triplet exciton (|D| = 0.018 cm−1, |E| = 0.001 cm−1) was observed by solid-state VT-EPR spectroscopy between 5 and 140 K. VT crystallography, DFT calculations and magnetic susceptibility studies reveal a strong temperature dependence of the intra-dimer exchange interaction with J/k [similar] −254 + 0.0007T2.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Subjects: Q Science > QD Chemistry
Publisher: RSC Publishing
ISSN: 1359-7345
Last Modified: 13 Sep 2019 21:40

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