Two-frequency two-photon ionization of nascent PO(X2II) from the collision-free IR photolysis of dimethyl methylphosphonate |
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| Authors: | J.S. Chou D. Sumida C. Wittig |
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| Affiliation: | Departments of Chemistry and Physics, University of Southern California, Los Angeles, California 90089-0484, USA |
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| Abstract: | We report the detection of nascent PO produced via the collision-free IR photolysis of dimethyl methylphosphonate. Absorption throughout the B2Σ+ ← X2Π system is followed by excitation using 266 nm radiation, which results in PO+ + e. Spectral features due to spin-orbit excitation appear extremely “cold” relative to vibrations and rotations. |
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