DYNAMICAL SYMMETRY-BREAKING IN THE 4-NU(CH) ROVIBRATIONAL MANIFOLD OFACETYLENE

Authors
PAYNE MA MILCE AP FROST MJ ORR BJ
Citation
Ma. Payne et al., DYNAMICAL SYMMETRY-BREAKING IN THE 4-NU(CH) ROVIBRATIONAL MANIFOLD OFACETYLENE, Chemical physics letters, 265(1-2), 1997, pp. 244-252
Citations number
35
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
265
Issue
1-2
Year of publication
1997
Pages
244 - 252
Database
ISI
SICI code
0009-2614(1997)265:1-2<244:DSIT4R>2.0.ZU;2-J
Abstract
Time-resolved, fluorescence-detected infrared-ultraviolet double reson ance spectroscopy of acetylene in the 12700 cm(-1) '4v(CH)' rovibratio nal manifold reveals unusual symmetry-breaking energy transfer, induce d (at least in part) by collisions. This takes the form of odd-numbere d changes of the rotational quantum number J, despite the fact that in tramolecular transfer between the ortho and para nuclear-spin modifica tions of such a molecule is usually forbidden.