Collisional deactivation of vibrationally highly excited polyatomic molecules. III. Direct observations for substituted cycloheptatrienes

Journal Article · Wed Jun 01 00:00:00 EDT 1983 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.444671· OSTI ID:6301207

Hippler, H; Troe, J; Wendelken, H J

Vibrationally highly excited ethyl-cycloheptatriene (41 600 cm/sup -1/) and isopropyl-cycloheptatriene (41 800 cm/sup -1/) molecules in the electronic ground state have been prepared by UV laser excitation inducing one-photon absorption and subsequent internal conversion. Collisional energy loss of these molecules has been followed directly by hot UV absorption spectroscopy. Average energies transferred per collision <..delta..E> have been determined for a series of bath gases. <..delta..E> values were found, for a given bath gas, to increase very slightly with the size of the excited molecule.

• Research Organization: Institut fuer Physikalische Chemie, Universitaet Goettingen, Tammannstrasse 6, D 3400 Goettingen, Germany
• OSTI ID: 6301207
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 78:11; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular &amp; Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTROSCOPY
ALKENES
COLLISIONS
CYCLOALKENES
ENERGY LEVELS
ENERGY TRANSFER
EXCITED STATES
HYDROCARBONS
MOLECULE COLLISIONS
MOLECULE-MOLECULE COLLISIONS
ORGANIC COMPOUNDS
POLYENES
SPECTROSCOPY
VIBRATIONAL STATES