The photodissociation of ground and vibrationally excited halogenated alkanes

Aviva Melchior; H. Mark Lambert; Paul J. Dagdigian; Ilana Bar; Salman Rosenwaks

doi:10.1002/ijch.199700051

The photodissociation of ground and vibrationally excited halogenated alkanes

Aviva Melchior
, H. Mark Lambert
, Paul J. Dagdigian
, Ilana Bar
, Salman Rosenwaks

Department of Physics

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

The dynamics of photodissociation of small halogenated alkanes, in both their ground and vibrationally excited states, is investigated. The yield of H, Cl(²P_3/2), and Cl(²P_1/2) fragments was measured by (2 + 1) resonance-enhanced multiphoton ionization in a time-of-flight mass spectrometer. We report results from the 193 nm photolysis of ground state CHF₂Cl, CH₃CF₂Cl, CH ₃CFCl2, and CH₃Cl and the 237-243 nm photolysis of CH ₃Cl excited to the fourth C-H stretch overtone level. The branching ratios depend on the molecular structure, the accessed excited potential surfaces and, as a consequence, on the dissociation dynamics.

Original language	English
Pages (from-to)	455-465
Number of pages	11
Journal	Israel Journal of Chemistry
Volume	37
Issue number	4
DOIs	https://doi.org/10.1002/ijch.199700051
State	Published - 1 Jan 1997

ASJC Scopus subject areas

General Chemistry

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10.1002/ijch.199700051

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@article{02b7304a8f954eb190557511310b41ce,

title = "The photodissociation of ground and vibrationally excited halogenated alkanes",

abstract = "The dynamics of photodissociation of small halogenated alkanes, in both their ground and vibrationally excited states, is investigated. The yield of H, Cl(2P3/2), and Cl(2P1/2) fragments was measured by (2 + 1) resonance-enhanced multiphoton ionization in a time-of-flight mass spectrometer. We report results from the 193 nm photolysis of ground state CHF2Cl, CH3CF2Cl, CH 3CFCl2, and CH3Cl and the 237-243 nm photolysis of CH 3Cl excited to the fourth C-H stretch overtone level. The branching ratios depend on the molecular structure, the accessed excited potential surfaces and, as a consequence, on the dissociation dynamics.",

author = "Aviva Melchior and Lambert, \{H. Mark\} and Dagdigian, \{Paul J.\} and Ilana Bar and Salman Rosenwaks",

year = "1997",

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doi = "10.1002/ijch.199700051",

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volume = "37",

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journal = "Israel Journal of Chemistry",

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TY - JOUR

T1 - The photodissociation of ground and vibrationally excited halogenated alkanes

AU - Melchior, Aviva

AU - Lambert, H. Mark

AU - Dagdigian, Paul J.

AU - Bar, Ilana

AU - Rosenwaks, Salman

PY - 1997/1/1

Y1 - 1997/1/1

N2 - The dynamics of photodissociation of small halogenated alkanes, in both their ground and vibrationally excited states, is investigated. The yield of H, Cl(2P3/2), and Cl(2P1/2) fragments was measured by (2 + 1) resonance-enhanced multiphoton ionization in a time-of-flight mass spectrometer. We report results from the 193 nm photolysis of ground state CHF2Cl, CH3CF2Cl, CH 3CFCl2, and CH3Cl and the 237-243 nm photolysis of CH 3Cl excited to the fourth C-H stretch overtone level. The branching ratios depend on the molecular structure, the accessed excited potential surfaces and, as a consequence, on the dissociation dynamics.

AB - The dynamics of photodissociation of small halogenated alkanes, in both their ground and vibrationally excited states, is investigated. The yield of H, Cl(2P3/2), and Cl(2P1/2) fragments was measured by (2 + 1) resonance-enhanced multiphoton ionization in a time-of-flight mass spectrometer. We report results from the 193 nm photolysis of ground state CHF2Cl, CH3CF2Cl, CH 3CFCl2, and CH3Cl and the 237-243 nm photolysis of CH 3Cl excited to the fourth C-H stretch overtone level. The branching ratios depend on the molecular structure, the accessed excited potential surfaces and, as a consequence, on the dissociation dynamics.

UR - https://www.scopus.com/pages/publications/33846307417

U2 - 10.1002/ijch.199700051

DO - 10.1002/ijch.199700051

M3 - Article

AN - SCOPUS:33846307417

SN - 0021-2148

VL - 37

SP - 455

EP - 465

JO - Israel Journal of Chemistry

JF - Israel Journal of Chemistry

IS - 4

ER -

The photodissociation of ground and vibrationally excited halogenated alkanes

Abstract

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