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Volumn 306, Issue 5699, 2004, Pages 1158-1161

The roaming atom: Straying from the reaction path in formaldehyde decomposition

Author keywords

[No Author keywords available]

Indexed keywords

BONDING; CARBON MONOXIDE; DECOMPOSITION; DISSOCIATION; HYDROGEN; IMAGING TECHNIQUES; MOLECULAR VIBRATIONS; POTENTIAL ENERGY;

EID: 8444221247     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1104386     Document Type: Article
Times cited : (558)

References (25)
  • 2
    • 8744305853 scopus 로고    scopus 로고
    • in press (ASAP Web release 16 July DOI 10.1021/jp048150)
    • T. Yan, C. Doubleday, W. L. Hase, J. Phys. Chem. A, in press (ASAP Web release 16 July 2004, DOI 10.1021/jp048150).
    • (2004) J. Phys. Chem. A
    • Yan, T.1    Doubleday, C.2    Hase, W.L.3
  • 21
    • 8444253395 scopus 로고    scopus 로고
    • note
    • The experiment features a pulsed molecular beam of formaldehyde directed into a vacuum chamber along the axis of an imaging time-of-flight mass spectrometer. The beam is crossed at right angles by counter-propagating photolysis and probe lasers. The photolysis laser is the frequency-doubled output of a yttrium-aluminum-garnet-Nd (Nd:YAG) pumped dye laser tunable around 330 nm. The probe laser is the frequency-tripled output of a second Nd:YAG pumped dye laser, tunable around 230 nm. The probe uses the well-known 2-plus-1 resonance-enhanced ionization of CO via the (B-X) Q-branch transition, affording, in this case, detection of single CO rotational levels for j = 10 and higher. Data images are recorded with centroiding without filtering or smoothing and then fourfold symmetrized to improve signal to noise.
  • 23
    • 8444248363 scopus 로고    scopus 로고
    • note
    • -1. Variation of these bin widths by ± 20% had no significant effect on the plotted distributions.
  • 24
    • 8444221709 scopus 로고    scopus 로고
    • note
    • 2 + CO is not exact unity as it should be; however, it is near unity. One difficulty in establishing a more reliable value at these lower energies is that a significant number of trajectories became very long-lived and had to be terminated before dissociation occurred.
  • 25
    • 8444229798 scopus 로고    scopus 로고
    • note
    • This work was supported by the director, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences, U.S. Department of Energy, under contracts DE-AC02-9810886 and DE-FG02-04ER15593 (A.G.S.), DE-FG02-97ER14782 (J.M.B.), and W-31-109-ENG-38 (L.B.H.).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.