OSU Navigation Bar

The Ohio State University University Libraries Knowledge Bank

MATRIX-ISOLATION SPECTROSCOPY OF POLYCYCLIC AROMATIC HYDROCARBON (PAH) IONS: HYDROGENATED-PAH CATIONS AND THE PENTACENE IONS

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/19978

Show full item record

Files Size Format View
2000-WI-05.jpg 102.9Kb JPEG image Thumbnail of MATRIX-ISOLATION SPECTROSCOPY OF POLYCYCLIC AROMATIC HYDROCARBON (PAH) IONS: HYDROGENATED-PAH CATIONS AND THE PENTACENE IONS

Title: MATRIX-ISOLATION SPECTROSCOPY OF POLYCYCLIC AROMATIC HYDROCARBON (PAH) IONS: HYDROGENATED-PAH CATIONS AND THE PENTACENE IONS
Creators: Halasinski, T. M.; Salama, F.; Allamandola, L. J.; Bally, Thomas
Issue Date: 2000
Abstract: We are currently extending the size, structure, and charge state of polycyclic aromatic hydrocarbons (PAHs) studied spectroscopically in the laboratory to develop a more complete understanding of the physical conditions and the chemical evolution within the inerstellar medium. We report here the UV/Visible spectroscopy of a series of PAHs containing excess H atoms ($H_{n}$-PAHs) and their photoproducts isolated in a neon matrix and compare them to the spectra of their chromophores. We also report supporting time-dependent density-functional theory (TD-DFT) calculations that allow new and revised assignments for pentacene ions. These calculations indicate that in the specific case of the pentacene cation, the HOMO to LUMO transition to the lowest excited electronic state. This is the first time such an effect is reported for the acenes.
URI: http://hdl.handle.net/1811/19978
Other Identifiers: 2000-WI-05
Bookmark and Share