2026-06-28T10:08:17Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/942802025-03-18T12:55:22Zcom_20.500.14352_14col_20.500.14352_15

Communication: First observation of ground state I(2P3/2) atoms from the CH3I photodissociation in the B-band González, María Rodríguez, Javier Rubio-Lago, Luis Bañares Morcillo, Luis The photodissociation of CH3I in the second absorption band (the B-band) has been studied at the wavelength 199.11 nm, coincident with the 31 0 3R1(E) ← X˜ (1A1) CH3I vibronic transition, using a combination of slice imaging and resonance enhanced multiphoton ionization detection of the CH3 fragment. The kinetic energy and angular distributions of the recoiling CH3 fragment confirm a major predissociation dynamics channel as a result of the interaction between the bound 3R1 Rydberg state and the repulsive 3A1(E) state − ascribed to the A-band − yielding CH3 fragments in correlation with spin-orbit excited I*(2P1/2) atoms. In addition, first evidence of a non-negligible population of ground state I(2P3/2) atoms in the CH3 fragment slice images, suggests a secondary predissociation mechanism via interaction between the 3R1 Rydberg state and the repulsive A-band 1Q1 state. 2024-01-22T10:12:01Z 2024-01-22T10:12:01Z 2011 journal article M. G. González, J. D. Rodríguez, L. Rubio-Lago, L. Bañares; Communication: First observation of ground state I(2P3/2) atoms from the CH3I photodissociation in the B-band. J. Chem. Phys. 14 July 2011; 135 (2): 021102. https://doi.org/10.1063/1.3613656 0021-9606 10.1063/1.3613656 https://hdl.handle.net/20.500.14352/94280 1089-7690 https://doi.org/10.1063/1.3613656 eng http://creativecommons.org/licenses/by-nd/4.0/ open access Attribution-NoDerivatives 4.0 International