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Volumn 311, Issue 5769, 2006, Pages 1907-1911

Rotational coherence and a sudden breakdown in linear response seen in room-temperature liquids

Author keywords

[No Author keywords available]

Indexed keywords

ALCOHOLS; LASER PULSES; MOLECULAR DYNAMICS; RELAXATION PROCESSES; SOLVENTS; ULTRAVIOLET RADIATION;

EID: 33645464115     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1123738     Document Type: Article
Times cited : (91)

References (31)
  • 18
    • 33645472573 scopus 로고    scopus 로고
    • note
    • See supporting material on Science Online.
  • 25
    • 33645465193 scopus 로고    scopus 로고
    • note
    • Quantum mechanical features of the rotational dynamics are probably not a major concern in the analysis of our experiments: For CN rotors produced in the rotationally hot channel, the average initial rotational kinetic energy is on the order of 4700 K (15 times the 300 K thermal energy of the solvent), whereas the spacing of rotational energy levels corresponds to only 230 K. We therefore use the phrase "rotational coherence" to refer only to classical coherence, not to coherence in the quantum mechanical phase.
  • 28
    • 33645470165 scopus 로고    scopus 로고
    • note
    • The oscillatory behavior of the early signal is characteristic of coherent free rotation of hot CN, validating the assumption that the dissociation reaction is impulsive with respect to solvent motions.
  • 29
    • 33645465921 scopus 로고    scopus 로고
    • note
    • Because of solvent shifts, the data reported for gas-phase photodissociation at 266 nm correspond to our liquid-state photolysis at 233 nm. See (13, 19).
  • 30
    • 33645471782 scopus 로고    scopus 로고
    • note
    • Although very similar nonlinear-response behavior is seen in our 300 K liquid-density supercritical Ar simulations, we report in Figs. 3 and 4 the results for the normal 120 K liquid.
  • 31
    • 33645461818 scopus 로고    scopus 로고
    • note
    • We thank P. Pieniazek, A. Krylov, I. Benajmin, and M. Alexander for helpful discussions. Work at USC is supported by NSF grant CHE-0311814 and by the David and Lucile Packard Foundation, and at Brown by NSF grants CHE-0131114, CHE-0212823, and CHE-0518169.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.