Infrared spectra of C2H2 under jet-cooled and para-H2 matrix conditions

Ying Chi Lee; V. Venkatesan; Yuan-Pern Lee; P. Macko; K. Didiriche; M. Herman

doi:10.1016/j.cplett.2007.01.014

Infrared spectra of C₂H₂ under jet-cooled and para-H₂ matrix conditions

Ying Chi Lee, V. Venkatesan, Yuan-Pern Lee^*, P. Macko, K. Didiriche, M. Herman

^*Corresponding author for this work

Department of Applied Chemistry

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

21 Scopus citations

Abstract

In spectra of jet-cooled C₂H₂ recorded with an FTIR spectrometer, the ν₅, ν₄ + ν₅, ν₃ and ν₂ + ν₄ + ν₅ bands all exhibit an intensity distribution corresponding to ∼6 K for rotation, with no evidence of nuclear spin conversion. Spectra of C₂H₂ isolated in solid p-H₂ show no evidence of rotation of C₂H₂. The strong interaction between ν₃ and ν₂ + ν₄ + ν₅ in the gas phase is diminished in solid p-H₂. Lines associated with dimer, trimer and tetramer of C₂H₂ are identified. Spectral features characteristic of solid state acetylene are observed under jet-cooled conditions.

Original language	English
Pages (from-to)	247-251
Number of pages	5
Journal	Chemical Physics Letters
Volume	435
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2007.01.014
State	Published - 19 Feb 2007

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title = "Infrared spectra of C2H2 under jet-cooled and para-H2 matrix conditions",

abstract = "In spectra of jet-cooled C2H2 recorded with an FTIR spectrometer, the ν5, ν4 + ν5, ν3 and ν2 + ν4 + ν5 bands all exhibit an intensity distribution corresponding to ∼6 K for rotation, with no evidence of nuclear spin conversion. Spectra of C2H2 isolated in solid p-H2 show no evidence of rotation of C2H2. The strong interaction between ν3 and ν2 + ν4 + ν5 in the gas phase is diminished in solid p-H2. Lines associated with dimer, trimer and tetramer of C2H2 are identified. Spectral features characteristic of solid state acetylene are observed under jet-cooled conditions.",

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year = "2007",

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language = "English",

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pages = "247--251",

journal = "Chemical Physics Letters",

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T1 - Infrared spectra of C2H2 under jet-cooled and para-H2 matrix conditions

AU - Lee, Ying Chi

AU - Venkatesan, V.

AU - Lee, Yuan-Pern

AU - Macko, P.

AU - Didiriche, K.

AU - Herman, M.

PY - 2007/2/19

Y1 - 2007/2/19

N2 - In spectra of jet-cooled C2H2 recorded with an FTIR spectrometer, the ν5, ν4 + ν5, ν3 and ν2 + ν4 + ν5 bands all exhibit an intensity distribution corresponding to ∼6 K for rotation, with no evidence of nuclear spin conversion. Spectra of C2H2 isolated in solid p-H2 show no evidence of rotation of C2H2. The strong interaction between ν3 and ν2 + ν4 + ν5 in the gas phase is diminished in solid p-H2. Lines associated with dimer, trimer and tetramer of C2H2 are identified. Spectral features characteristic of solid state acetylene are observed under jet-cooled conditions.

AB - In spectra of jet-cooled C2H2 recorded with an FTIR spectrometer, the ν5, ν4 + ν5, ν3 and ν2 + ν4 + ν5 bands all exhibit an intensity distribution corresponding to ∼6 K for rotation, with no evidence of nuclear spin conversion. Spectra of C2H2 isolated in solid p-H2 show no evidence of rotation of C2H2. The strong interaction between ν3 and ν2 + ν4 + ν5 in the gas phase is diminished in solid p-H2. Lines associated with dimer, trimer and tetramer of C2H2 are identified. Spectral features characteristic of solid state acetylene are observed under jet-cooled conditions.

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U2 - 10.1016/j.cplett.2007.01.014

DO - 10.1016/j.cplett.2007.01.014

M3 - Article

AN - SCOPUS:33846663224

VL - 435

SP - 247

EP - 251

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 4-6

ER -

Infrared spectra of C₂H₂ under jet-cooled and para-H₂ matrix conditions

Abstract

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