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Proceedings Paper

Molecular dissociations in TEA-CO2 laser field
Author(s): Ioan Deac; V. Cosma; Valer Almasan; N. Palibroda; Ioan Ursu
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Paper Abstract

Dimethylamine (DMA) and trimethylamine (TMA) molecules are photolyzed with a TEA- CO2 laser at 1035 cm-1 in focussed and unfocussed beams with fluences up to 12 J/cm2 and stable products are determined for up to 20 Torr pressure. The formation of stable products like CH4, C2H2, C2H4 and probably C2H6 proved that the main channel of infrared multiphotonic dissociation (IRMPD) of both molecules consists in scission of CH3 - N bond. The remaining energized radicals are converted to HCN in TMA IRMPD and HCN and NH3 in DMA IRMPD. In the last case, secondary reactions between CH3 radicals and DMA molecules yield to TMA formation. At prolonged irradiation, considerable quantities of TMA are formed which can react with CN and (CH3)2N radicals to produce (CH3)2N - CH2 - CN and (CH3)2N - CH2 - N(CH3)2 compounds.

Paper Details

Date Published: 8 March 1995
PDF: 5 pages
Proc. SPIE 2461, ROMOPTO '94: Fourth Conference in Optics, (8 March 1995); doi: 10.1117/12.203534
Show Author Affiliations
Ioan Deac, Institute of Isotopic and Molecular Technology (Romania)
V. Cosma, Institute of Isotopic and Molecular Technology (Romania)
Valer Almasan, Institute of Isotopic and Molecular Technology (Romania)
N. Palibroda, Institute of Isotopic and Molecular Technology (Romania)
Ioan Ursu, International Ctr. for Theoretical Physics (Romania)


Published in SPIE Proceedings Vol. 2461:
ROMOPTO '94: Fourth Conference in Optics

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