science-softCon uv/vis+ spectra data base; www.uv-spectra.de; (C) science-softCon 2019 Substance: pyrimidine Other Names: 1,3-diazine Formula: C4H4N2 CAS-No.: 289-95-2 Study: UV photoabsorption spectroscopy Authors: M. Stener, P. Decleva, D.M.P. Holland, D.A. Shaw Title: A study of the valence shell electronic states of pyrimidine and pyrazine by photoabsorption spectroscopy and time-dependent density functional theory calculations Journal/Source: J. Phys. B: At. Mol. Opt. Phys., 44, 075203, (2011); doi:10.1088/0953-4075/44/7/075203 Data: table, diagram Energy/Wavelength range: ~ 40 - 282 nm (4.4 - 40 eV) Resolution: 0.1 nm Temperature: Temperature dependence: Pressure/Concentration: 5 - 30 µbar Phase: gas pH: Comments: The valence shell electronic states of pyrimidine and pyrazine have been studied experimentally and theoretically. The absolute photoabsorption cross sections have been measured between 4 and 40 eV, using synchrotron radiation, and are dominated by prominent bands associated with intravalence transitions. Author to whom correspondence should be addressed: (e-mail address):