A Spectroscopic Study of the D(0u+) Ion-Pair State of I2 by Optical–Optical Double Resonance
Keyword(s):
Ion Pair
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The D(0u+) ion-pair state of I2 has been analyzed by the optical–optical double resonance (OODR) technique. In a stepwise three-photon excitation scheme, D(0u+)–B3Π(0u+)–X1Σg+, the D(0u+) state appeared in the OODR spectrum as the vibrational progressions consisting of O, Q and S branches in accord with the rotational selection rule of ΔJ = 0 and ±2 for the coherent two-photon transition from the B3Π(0u+) state. The D(0u+)–X1Σg+ fluorescence was resolved to determine the absolute vibrational numbering of the D(0u+) state. We derived Dunham parameters effective for ν = 0 through ν = 124 which were used to construct a Rydberg–Klein–Rees (RKR) potential curve.
1988 ◽
Vol 127
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pp. 353-361
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1993 ◽
Vol 98
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pp. 3620-3626
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1986 ◽
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pp. 337-351
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1984 ◽
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pp. 434-437
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1991 ◽
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pp. 334-345
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1994 ◽
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pp. 5-10
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1992 ◽
Vol 151
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pp. 513-521
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