science-softCon uv/vis spectra data base;	 	www.uv-spectra.de, (C) science-softCon 2009

Substance: hexabenzoperopyrene			Other Names: 

Formula: C44H20					CAS-No.: 

Study: spectroscopy


Authors: R. Ruiterkamp, T. Halasinski, F. Salama, B. H. Foing, L. J. Allamandola, W. Schmidt, P. Ehrenfreund

Title: Spectroscopy of large PAHs - Laboratory studies and comparison to the Diffuse Interstellar Bands

Journal/Source: Astronomy & Astrophysics, 390, 1153-1170, (2002); DOI: 10.1051/0004-6361:20020478


Data: (diagram, table, disk): diagram, table

Wavelength/Energy range: 200 - 1200 nm

Resolution: 0.3 - 21.3 nm (FWHM)

Temperature: 4 K

Temperature dependence: 

Pressure:


Comments: The spectrum of neutral hexabenzoperopyrene shows three band systems peaking at 236.0, 345.9, and 400.0 nm, respectively. 
VUV photolysis leads to the formation of three new absorption features that appear in the spectrum at 525.6 nm, 562.5 and 574.8 nm respectively.

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