science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2022

Substance: oxygen dimer 				Other Names: 

Formula: O4						CAS-No.: 	PubChem: 

Study: uv/vis absorption spectrum


Authors: J. Lampel, J. Zielcke, S. Schmitt, D. Poehler, U. Friess, U. Platt, T. Wagner

Title: Detection of O4 absorption around 328 and 419 nm in measured atmospheric absorption spectra

Journal/Source: Atmos. Chem. Phys., 18, 1671–1683, (2018); https://doi.org/10.5194/acp-18-1671-2018


Data: table, diagram

Energy/Wavelength range: 320 - 620 nm

Resolution: 0.009 nm

Pathlength: 

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration: 

Phase: gas

pH: 


Comments: For the absorption at 419.13 ± 0.42 nm a peak O4 cross-section value is determined to be (5.0 ± 3.5) x 10-48 cm5 molec-2.