Spectroscopy of Dibenzorubicene: Experimental Data for a Search in Interstellar Spectra

✍ Scribed by Dr. Gaël Rouillé; Mathias Steglich; Dr. Cornelia Jäger; Prof. Dr. Friedrich Huisken; Prof. Dr. Thomas Henning; Gabriele Theumer; Dr. Ingmar Bauer; Prof. Dr. Hans-Joachim Knölker

• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 403 KB
• Volume: 12
• Category: Article
• ISSN: 1439-4235
• DOI: 10.1002/cphc.201100135

✦ Synopsis

Abstract

We report on the characterization of dibenzo[cde,opq]rubicene (C~30~H~14~). The molecule was studied in solution at room temperature with absorption spectroscopy in the visible (vis) and ultraviolet (UV) wavelength ranges, and with emission spectroscopy. The infrared (IR), visible, ultraviolet, and vacuum ultraviolet (VUV) absorption spectra of a thin film were measured also at room temperature. In addition, the UV/vis absorption spectrum was measured at cryogenic temperatures using the matrix isolation spectroscopy technique. The interpretation of spectra was supported by theoretical calculations based on semiempirical and ab initio models, as well as on density functional theory. Finally, the results of the laboratory study were compared with interstellar spectra.