Spin-triplet excitons in 1,3-diphenyl-7-(fur-2-yl)-1,4-dihydro-1,2,4- benzotriazin-4-yl
Date
2013Author
Constantinides, Christos P.Carter, E.
Murphy, D. M.
Manoli, Maria
Leitus, G. M.
Bendikov, M.
Rawson, J. M.
Koutentis, Panayiotis Andreas
ISSN
1359-7345Source
Chemical CommunicationsVolume
49Issue
77Pages
8662-8664Google Scholar check
Keyword(s):
Metadata
Show full item recordAbstract
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 ∼ -254 + 0.0007T2. © 2013 The Royal Society of Chemistry.