science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2024

Substance: imidazole		 			Other Names: glyoxaline

Formula: C3H4N2						CAS-No.: 288-32-4	PubChem: CID 795

Study: uv absorption spectrum


Authors: D.M.P. Holland, D.A. Shaw, D. Townsend, I. Powis

Title: Valence shell electronically excited states of imidazole and 1-methylimidazole

Journal/Source: Molecular Physics, 121 (7-8), (2023); https://doi.org/10.1080/00268976.2022.2122614


Data: diagram, table

Energy/Wavelength range: 4.5 - 11 eV (~ 113 - 275 nm)

Resolution: 0.1 nm FWHM

Pathlength: 

Temperature: 333 K

Temperature dependence: no

Pressure/Concentration: 15 microbar

Phase: gas

pH: 


Comments: The absolute photoabsorption cross section of imidazole, and that of 1-methylimidazole, have been measured from threshold up to 10.8 eV.