Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 6, 2011
Previous Article Next Article

Product pair correlation in CH3OH photodissociation at 157 nm: the OH + CH3 channel

Author affiliations

Abstract

The OH + CH3 product channel for the photodissociation of CH3OH at 157 nm was investigated using the velocity map imaging technique with the detection of CH3 radical products via (2+1) resonance-enhanced multiphoton ionization (REMPI). Images were measured for the CH3 formed in the ground and excited states (v2 = 0, 1, 2, and 3) of the umbrella vibrational mode and correlated OH vibrational state distributions were also determined. We find that the vibrational distribution of the OH fragment in the OH + CH3 channel is clearly inverted. Anisotropic distributions for the CH3 (v2 = 0, 1, 2, and 3) products were also determined, which is indicative of a fast dissociation process for the C–O bond cleavage. A slower CH3 product channel was also observed, that is assigned to a two-step photodissociation process, in which the first step is the production of a CH3O(X 2E) radical via the cleavage of the O–H bond in CH3OH, followed by probe laser photodissociation of the nascent CH3O radicals yielding CH3(X 2A1, v = 0) products.

Graphical abstract: Product pair correlation in CH3OH photodissociation at 157 nm: the OH + CH3 channel

Back to tab navigation

Publication details

The article was received on 13 Sep 2010, accepted on 29 Oct 2010 and first published on 26 Nov 2010


Article type: Paper
DOI: 10.1039/C0CP01794A
Citation: Phys. Chem. Chem. Phys., 2011,13, 2350-2355

  •   Request permissions

    Product pair correlation in CH3OH photodissociation at 157 nm: the OH + CH3 channel

    Z. Chen, A. T. J. B. Eppink, B. Jiang, G. C. Groenenboom, X. Yang and D. H. Parker, Phys. Chem. Chem. Phys., 2011, 13, 2350
    DOI: 10.1039/C0CP01794A

Search articles by author

Spotlight

Advertisements