science-softCon uv/vis+ photochemistry database; www.photochemistry.org; (C) science-softCon 2019 Substance: ammonia Other Names: Formula: NH3 CAS-No.: 7664-41-7 Study: uv absorption spectrum Authors: K. Dressler, O. Schnepp Title: Absorption Spectra of Solid Methane, Ammonia, and Ice in the Vacuum Ultraviolet Journal/Source: J. Chem. Phys., 33, 270-274, (1960); doi:10.1063/1.1731096 Data:diagram Energy/Wavelength range: < 170 nm Resolution: Temperature: < 273 K Temperature dependence: no Pressure/Concentration: Phase: solid pH: Comments: The vacuum ultraviolet spectra of solid ammonia and ice are found to be shifted to higher frequencies relative to the corresponding vapor spectra by 7000 cm-1. In methane, which forms a pure van der Waals solid, the spectra of gas and solid are found to be very similar. Author to whom correspondence should be addressed: (e-mail address):