Low-Temperature Rotational Relaxation of CO in Self-Collisions and in Collisions with Ne and He

G. A. AMARAL; F. J. AOIZ; L. BAÑARES; J. BARR; V. J. HERRERO; B. MARTÍNEZ-HAYA; M. MENÉNDEZ; G. A. PINO; I. TANARRO; I. TORRES; J. E. VERDASCO

JOURNAL OF PHYSICAL CHEMISTRY A

American Chemical Society

Lugar: Georgia - USA; Año: 2005 vol. 109 p. 9402 - 9402

1089-5639

font face="Times New Roman" size="2"> The low-temperature rotational relaxation of CO in self-collisions and in collisions with the rare-gas atoms Ne and He has been investigated in supersonic expansions with a combination of resonance-enhanced multiphoton ionization (REMPI) spectroscopy and time-of-flight techniques. For the REMPI detection of CO, a novel 2 + 1¢ scheme has been employed through the A1¦ state of CO. From the measured data, average cross sections for rotational relaxation have been derived as a function of temperature in the range 5-100 K. For CO