science-softCon uv/vis+ spectra data base; www.uv-spectra.de; (C) science-softCon 2016 Substance: azobenzene Other Names: diphenyldiazene Formula: C12H10N2 CAS-No.: 103-33-3 PubChem: CID 2272 Study: UV absorption spectra Authors: H.H. Jaffe, S.-J. Yeh, R.W. Gardner Title: The electronic spectra of azobenzene derivatives and their conjugate acids Journal/Source: J. Mol. Spectr., 2 (1-6), 120-136, (1958); http://dx.doi.org/10.1016/0022-2852(58)90067-5 Data: table, diagram Energy/Wavelength range: 24000 - 45000 cm-1 (~ 222 - 416 nm) Resolution: Temperature: 298 K Temperature dependence: no Pressure/Concentration: Phase: solution (15 wt. % ethanol; acidic solutions H2SO4) pH: Comments: The absorption spectra of azobenzene, of its m-bromo and p-ethoxy derivatives, of their conjugate acids and of benzalaniline are redetermined and carefully analyzed. Author to whom correspondence should be addressed: (e-mail address):