A femtosecond velocity map imaging study on B-band predissociation in CH3I. II. The 2(0)1 and 3(0)1 vibronic levels

The Journal of Chemical Physics
Gregory GitzingerL Bañares

Abstract

Femtosecond time-resolved velocity map imaging experiments are reported on several vibronic levels of the second absorption band (B-band) of CH(3)I, including vibrational excitation in the ν(2) and ν(3) modes of the bound (3)R(1)(E) Rydberg state. Specific predissociation lifetimes have been determined for the 2(0)(1) and 3(0)(1) vibronic levels from measurements of time-resolved I*((2)P(1/2)) and CH(3) fragment images, parent decay, and photoelectron images obtained through both resonant and non-resonant multiphoton ionization. The results are compared with our previously reported predissociation lifetime measurements for the band origin 0(0) (0) [Gitzinger et al., J. Chem. Phys. 132, 234313 (2010)]. The result, previously reported in the literature, where vibrational excitation to the C-I stretching mode (ν(3)) of the CH(3)I (3)R(1)(E) Rydberg state yields a predissociation lifetime about four times slower than that corresponding to the vibrationless state, whereas predissociation is twice faster if the vibrational excitation is to the umbrella mode (ν(2)), is confirmed in the present experiments. In addition to the specific vibrational state lifetimes, which were found to be 0.85 ± 0.04 ps and 4.34 ± 0.13 ps for the 2(0)(1) ...Continue Reading

References

Apr 26, 2008·The Journal of Physical Chemistry. a·A GilchristS Taylor
Jul 8, 2008·The Journal of Chemical Physics·Rebeca de NaldaLuis Bañares
Oct 10, 2009·The Journal of Chemical Physics·J DuráL Bañares
Jun 25, 2010·The Journal of Chemical Physics·G GitzingerL Bañares
Jul 30, 2010·Physical Chemistry Chemical Physics : PCCP·Nicolas ThiréSteven T Pratt
Feb 2, 2011·The Journal of Chemical Physics·Aleksey B AlekseyevRobert J Buenker
Jun 28, 2011·Physical Chemistry Chemical Physics : PCCP·R de NaldaL Bañares
Sep 29, 2011·Physical Chemistry Chemical Physics : PCCP·N ThiréS T Pratt

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Citations

Dec 11, 2013·The Journal of Chemical Physics·Hong Xu, S T Pratt
Feb 12, 2015·The Journal of Chemical Physics·Qianguang LiBifeng Tang
May 7, 2015·The Journal of Physical Chemistry. a·Hong Xu, S T Pratt
Oct 28, 2016·The Journal of Physical Chemistry Letters·M E CorralesL Bañares
Oct 17, 2015·Physical Chemistry Chemical Physics : PCCP·Garikoitz BalerdiLuis Bañares
Oct 23, 2015·Physical Chemistry Chemical Physics : PCCP·Sonia Marggi PoullainLuis Bañares
Apr 4, 2015·Physical Chemistry Chemical Physics : PCCP·Ignacio R SoláLuis Bañares
Jul 19, 2018·Physical Chemistry Chemical Physics : PCCP·Marta L Murillo-SánchezLuis Bañares
Jul 5, 2019·Physical Chemistry Chemical Physics : PCCP·Marta L Murillo-SánchezLuis Bañares
Nov 12, 2019·Physical Chemistry Chemical Physics : PCCP·Kaja SchubertMichael Martins
Sep 12, 2013·Faraday Discussions·María E CorralesLuis Bañares
Jan 15, 2014·Physical Chemistry Chemical Physics : PCCP·María E CorralesAhmed H Zewail
Nov 9, 2017·Nature Communications·María E CorralesLuis Bañares
Jan 10, 2020·The Journal of Chemical Physics·Marta L Murillo-SánchezLuis Bañares
Dec 20, 2018·Physical Chemistry Chemical Physics : PCCP·Sonia Marggi PoullainLuis Bañares
Jul 24, 2012·ACS Nano·Xiaojun WuXiao Cheng Zeng
May 11, 2018·The Journal of Physical Chemistry. a·Arne BaumannMarkus Drescher

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Methods Mentioned

BETA
imaging techniques

Software Mentioned

REMPI
Syage

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