(2+1) RESONANCE ENHANCED MULTIPHOTON IONIZATION OF HYDROGEN-CHLORIDE IN A PULSED SUPERSONIC JET - VACUUM WAVE-NUMBERS OF ROTATIONAL LINES WITH DETAILED BAND ANALYSIS FOR EXCITED ELECTRONIC STATES OF (HCL)-CL-35 .3.

In the present work, rotational assignments and measured line positions are presented for 120 band systems of H35Cl with 0 ≤ v′ ≤ 2 for Rydberg states, 3 ≤ v′ ≤ 32 for the V1Σ+(0+) valence state, and all transitions originating from X1Σ+(0+) v″ = 0. Considerable success is made in characterizing the f3Δi(3, 2, 1) and i3Δi(3, 2, 1) Rydberg states. The line positions of H37Cl have not been included explicitly, only the magnitude of isotope shifts near the band origins. The line positions of D35Cl are included for transitions through the v′ = 0 level of the E1Σ+(0+) state. The angular momentum and rotational level assignments for the excited electronic state are determined by assessing ground state combination differences for each observed band. In most case, the Ω′ values are established from the first few lines of the various branches. Isotope separation between H35Cl and H37Cl assists in providing the vibrational numbering and interstate perturbations. © 1991.