Welcome to the Astrochemistry Laboratory's on-line database of Polycyclic Aromatic Hydrocarbon Infrared Spectra. This database contains spectroscopic data which are compiled from our publications (Dr. Hudgins' in particular) in the scientific literature. This database was constructed by Dr. Jason Dworkin and is maintained by Dr. Douglas Hudgins.
The data in this archive are catagorized according to their charge state and are arranged in order of increasing molecular size. For each species, the position, relative intensity, and absolute intensity for each of the infrared bands are tabulated in both HTML and ASCII formats. In addition, for the neutral species, images of the spectra are also provided. You can enter the archive by clicking on the links below.
We hope you find this data useful. Please feel free to send us a note about its utility and the basis of your interest.