ROVIBRATIONALLY RESOLVED, CONTINUOUS SUPERSONIC-JET, FOURIER-TRANSFORM, INFRARED-ABSORPTION SPECTROSCOPY OF WEAKLY BOUND HETERODIMERS - ANALYSIS OF NU-1 AND NU-2 OF OC-HCL

Application of rovibrationally resolved, continuous supersonic-jet, Fo urier-transform, infrared absorption spectroscopy to the investigation of weakly bound dimers is reported. Analysis of the nu1 and nu2 stret ching vibrational bands of OC-H35Cl and OC-H37Cl has been performed an d the following molecular parameters, including band origin frequencie s (nu(i)) and excited state rotational and distortion constants (B', D '), have been determined (in cm-1). For OC-H35Cl: nu1=2851.76061(21); B1'=0.0560443(31); D1'=1.795(80) x 10(-7); nu2=2155.50001(13); B2'=0.0 554824(10); D2'=1.650(15) x 10(-7). For OC-H37Cl; nu1=2849.67217(54); B1'=0.0547611(55); D1'=1.63(11) x 10(-7); nu2=2155.50626(62); B2'=0.05 42013(21); D2'= 1.48(16) x 10(-7). These results are compared with a p revious study of this complex performed using continuous supersonic-je t, diode-laser, infrared absorption spectroscopy.