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 ORCID: https://orcid.org/0000-0001-6691-2377, Murphy, Damien Martin ORCID: https://orcid.org/0000-0002-5941-4879, 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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Abstract

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:	11 Dec 2022 09:20
URI:	https://orca.cardiff.ac.uk/id/eprint/51143

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