Electron-energy-loss spectroscopy of solid phenanthrene and biphenylene: Search for the low-lying triplet states - Swiderek, P.; Michaud, M.; Hohlneicher, G.; Sanche, L. (Elsevier)
Electron-energy-loss spectra of phenanthrene and biphenylene deposited on a thin film of solid argon have been measured at a temperature of 20 K and an incident energy of 10.5 eV. The second triplet state of phenanthrene (1 ^3A"1) and biphenylene (1 ^3B"2"u) could be detected at 3.45 and 3.20 eV, respectively. For biphenylene, a further triplet state is tentatively assigned at 3.92 eV.
http://linkinghub.elsevier.com/retrieve/pii/0009-2614(91)87071-I
Keywords: V; U