F. Huisken et al., HIGH-RESOLUTION CARS SPECTROSCOPY OF SMALL CARBON-DIOXIDE CLUSTERS - INVESTIGATION OF THE CO2 DIMER IN THE NU(1) 2-NU(2) FERMI DYAD/, Journal of molecular structure, 410, 1997, pp. 47-50
High-resolution CARS spectroscopy has been employed to study the forma
tion of small carbon dioxide clusters in a supersonic jet near the low
er frequency component of the nu(1)/2 nu(2) Fermi dyad at 1285.41 cm(-
1). A pronounced structure was found at 1284.73 cm(-1), redshifted by
0.68 cm(-1) from the monomer Q-branch. Analysis of the complete set of
experimental data and comparison with kinetic calculations indicate t
hat the new feature must be attributed to the CO2 dimer. (C) 1997 Else
vier Science B.V.