Abstract
The 1(g)(D-1(2)) ion-pair state of Cl-2 has been accessed via a two-photon, two-colour bound-free-bound route. An extensive vibrational progression is observed, overlapping high levels of the E0(g)(+) (P-3(2)) state. The absolute numbering is established from isotopic shifts and continuity with the known term values of v' = 0-6. The intermediate resonant state accessing the 1(g)(D-1(2)) state is the unbound C-1 Pi(1u). The final state classification as Ohm = 1 is confirmed by simulating the rotational band structure observed under perpendicular pump/probe polarization conditions using Honl-London factors from a coherent superposition of intermediate J(i)M(i) states, not those appropriate to well-defined J(i) and M(i) states. These Honl-London factors also reproduce the rotational linestrengths of the beta 1(g)(P-3(2)); v' = 65
Original language | English |
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Pages (from-to) | 165-174 |
Number of pages | 10 |
Journal | Chemical physics |
Volume | 208 |
Issue number | 1 |
Publication status | Published - 15 Jul 1996 |
Keywords / Materials (for Non-textual outputs)
- OPTICAL DOUBLE-RESONANCE
- ABSORPTION-SPECTRUM
- VACUUM ULTRAVIOLET
- CL2
- EXCITATION
- MOLECULES
- CHLORINE
- RYDBERG
- SYSTEM