photodissociation


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photodissociation

[¦fōd·ō·di‚sō·shē′ā·shən]
(physical chemistry)
The removal of one or more atoms from a molecule by the absorption of a quantum of electromagnetic energy.
References in periodicals archive ?
Berry, "Golden rule calculation of product vibronic population inversions in photodissociation and related reactions," Chemical Physics Letters, vol.
Accordingly, in a high density, high temperature region in a UV radiation field, in spite of higher photodissociation rates, higher molecular abundances are possible.
North, "Two-component molecular tagging velocimetry utilizing NO fluorescence lifetime and N[O.sub.2] photodissociation techniques in an underexpanded jet flowfield," Applied Optics, vol.
Carver, "Rotational features in the fluorescence excitation spectrum of 0(1D2) from vacuum ultraviolet-laser photodissociation of 02," J.
Qi, CCl bond fission, HCl elimination, and secondary radical decomposition in the 193 nm photodissociation of allyl chloride, J.
This introduction to laboratory astrochemistry reviews recent advances in molecular spectroscopy, photodissociation, gas-phase processes, surfaces of grains, dust formation, and their spectroscopic properties.
It considers laser propagation safety and explains standard test material preparation for standoff optical-based detection system evaluation; explores explosives detection using deep ultraviolet native fluorescence, Raman spectroscopy, laser-induced breakdown spectroscopy, reflectometry, and hyperspectral imaging; examines photodissociation followed by laser-induced fluorescence, photothermal methods, cavity-enhanced absorption spectrometry, and short-pulse laser-based techniques; and describes the detection and recognition of explosives using terahertz-frequency spectroscopic techniques.
The reaction products were then characterized by infrared photodissociation spectroscopy and mass spectrometry.
Aernecke, "Noncontact optical detection of explosive particles via photodissociation followed by laserinduced fluorescence," Optics Express, vol.
Hollenbach, "Photodissociation region models of photoevaporating circumstellar disks and application to the proplyds in Orion," The Astrophysical Journal, vol.
Ohtsu, "Nonadiabatic photodissociation process using an optical near field," Journal of Chemical Physics, vol.
They suggested that in addition to the carbon obtained from direct ablation of the target, other substances like carbon particle suspended in the reaction zone, C2 obtained from photodissociation of fullerenes, and other low molecular weight species may also serve as feedstock for nanotube growth [61].