Dynamical symmetry breaking in the 4νCH rovibrational manifold of acetylene

M. A. Payne; A. P. Milce; M. J. Frost; B. J. Orr

doi:10.1016/S0009-2614(96)01435-2

Dynamical symmetry breaking in the 4ν_CH rovibrational manifold of acetylene

M. A. Payne^*, A. P. Milce, M. J. Frost, B. J. Orr

^*Corresponding author for this work

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

27 Citations (Scopus)

Abstract

Time-resolved, fluorescence-detected infrared-ultraviolet double resonance spectroscopy of acetylene in the 12700 cm^-1 '4ν_CH' rovibrational manifold reveals unusual symmetry-breaking energy transfer, induced (at least in part) by collisions. This takes the form of odd-numbered changes of the rotational quantum number J, despite the fact that intramolecular transfer between the ortho and para nuclear-spin modifications of such a molecule is usually forbidden.

Original language	English
Pages (from-to)	244-252
Number of pages	9
Journal	Chemical Physics Letters
Volume	265
Issue number	1-2
DOIs	https://doi.org/10.1016/S0009-2614(96)01435-2
Publication status	Published - 31 Jan 1997

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abstract = "Time-resolved, fluorescence-detected infrared-ultraviolet double resonance spectroscopy of acetylene in the 12700 cm-1 '4νCH' rovibrational manifold reveals unusual symmetry-breaking energy transfer, induced (at least in part) by collisions. This takes the form of odd-numbered changes of the rotational quantum number J, despite the fact that intramolecular transfer between the ortho and para nuclear-spin modifications of such a molecule is usually forbidden.",

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AB - Time-resolved, fluorescence-detected infrared-ultraviolet double resonance spectroscopy of acetylene in the 12700 cm-1 '4νCH' rovibrational manifold reveals unusual symmetry-breaking energy transfer, induced (at least in part) by collisions. This takes the form of odd-numbered changes of the rotational quantum number J, despite the fact that intramolecular transfer between the ortho and para nuclear-spin modifications of such a molecule is usually forbidden.

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Dynamical symmetry breaking in the 4ν_CH rovibrational manifold of acetylene

Abstract

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