FAR-INFRARED SPECTROSCOPY OF NEUTRAL CORONENE, OVALENE, AND DICORONYLENE

Journal Article · Wed Apr 15 04:00:00 EDT 2009 · Astronomical Journal (New York, N.Y. Online)

DOI:https://doi.org/10.1088/0004-6256/137/4/4054; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)· OSTI ID:21269236

Mattioda, A L; Ricca, A; Bauschlicher, C W; Allamandola, L J ^[1]

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1. NASA Ames Research Center, Moffett Field, CA 94035-1000 (United States)

Here we report the first far-IR (FIR) matrix-isolated spectra of the neutral polycyclic aromatic hydrocarbon (PAH) molecules coronene, ovalene, and dicoronylene. The experimental spectra covered the 650-100 cm{sup -1} (15.385-100 {mu}m) range and the theoretical spectra covered the 650-10 cm{sup -1} (15.385-1000 {mu}m) range. The experimentally measured values are in excellent agreement with theoretical values. The fundamental differences between the skeletal or drumhead modes of the FIR and the group vibrational modes of the mid-IR are discussed and detailed descriptions of the FIR vibrational modes are given.

• OSTI ID: 21269236
• Journal Information: Astronomical Journal (New York, N.Y. Online), Journal Name: Astronomical Journal (New York, N.Y. Online) Journal Issue: 4 Vol. 137; ISSN 1538-3881
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
99 GENERAL AND MISCELLANEOUS
ABSORPTION SPECTROSCOPY
FAR INFRARED RADIATION
INFRARED SPECTRA
POLYCYCLIC AROMATIC HYDROCARBONS