Fragmentation of Tetrahydrofuran Molecules by H+, C+, and O+ Collisions at the Incident Energy Range of 25–1000 eV - Publication - MOST Wiedzy

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Fragmentation of Tetrahydrofuran Molecules by H+, C+, and O+ Collisions at the Incident Energy Range of 25–1000 eV

Abstract

We have studied fragmentation processes of the gas-phase tetrahydrofuran (THF) molecules in collisions with the H+, C+, and O+ cations. The collision energies have been varied between 25 and 1000 eV and thus covered a velocity range from 10 to 440 km/s. The following excited neutral fragments of THF have been observed: the atomic hydrogen H(n), n = 4–9, carbon atoms in the 2p3s 1P1, 2p4p 1D2, and 2p4p 3P states and vibrationally and rotationally excited diatomic CH fragments in the A2Δ and B2Σ– states. Fragmentation yields of these excited fragments have been measured as functions of the projectile energy (velocity). Our results show that the fragmentation mechanism depends on the projectile cations and is dominated by electron transfer from tetrahydrofuran molecules to cations. It has been additionally hypothesized that in the C++THF collisions a [C–C4H8O]+ complex is formed prior to dissociation. The possible reaction channels involved in fragmentation of THF under the H+, C+, and O+ cations impact are also discussed.

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Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
JOURNAL OF PHYSICAL CHEMISTRY A no. 119, edition 4, pages 581 - 589,
ISSN: 1089-5639
Language:
English
Publication year:
2015
Bibliographic description:
Wąsowicz T., Pranszke B.: Fragmentation of Tetrahydrofuran Molecules by H+, C+, and O+ Collisions at the Incident Energy Range of 25–1000 eV// JOURNAL OF PHYSICAL CHEMISTRY A. -Vol. 119, iss. 4 (2015), s.581-589
DOI:
Digital Object Identifier (open in new tab) 10.1021/jp5105856
Verified by:
Gdańsk University of Technology

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