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Volumn 100, Issue 48, 1996, Pages 18629-18649

Solvation ultrafast dynamics of reactions. 11. Dissociation and caging dynamics in the gas-to-liquid transition region

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Indexed keywords


EID: 0042628868     PISSN: 00223654     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp962430a     Document Type: Article
Times cited : (77)

References (154)
  • 68
    • 85033044663 scopus 로고    scopus 로고
    • note
    • The "packing fraction" is defined as the product of solvent density p (mot/L) and the molar volume Vo of the solvent atoms, which is assumed to be given as I'o = ]/b.~rtPN,\, with d being the Lennard-Jones diameter and N,\ Avosadro's number. Lennard-Jones diameters: He, 2.576 A; Ne, 2.789 A; Ar, 3.418 A; Kr, 3.6 A; I, 4.982 A.
  • 69
    • 85033061689 scopus 로고    scopus 로고
    • note
    • A hard-sphere collision frequency ;I,-RG = nN,\p is assumed, with -4/I,-RQ being the Lennard-Jone's diameter (m),//|,-RG the reduced mass (kg), k Boltzmann's constant, 7"the temperature (K), NA Avogadro's number, and p the density (mol/L).
  • 89
  • 111
    • 85033065893 scopus 로고    scopus 로고
    • note
    • 2) and sometimes to be a distance (m), we denote the Lennard-Jones diameter by d. The following parameters have been used: Lennard-Jones diameters: He, 2.576 A; Ne, 2.789 A; Ar, 3.418 A; Kr, 3.6 A; 12, 4.982 A; H-hexane, 5.909 A.
  • 116
    • 85033044859 scopus 로고    scopus 로고
    • note
    • The followins parameters have been used: Lennard-Jones diameters: He, 2.576 A; Ne, 2.789 A; Ar, 3.418 A; Kr, 3.6 A: K 4.982 A; ;i-hexane, 5.909 A. Polarizabilities (lO"30 m3): He, 0.2050; Ne, 0.3956; Ar, 1.6411; Kr, 2.4844; hexane, 11.78. lonization potentials (eV): He, 24.587; Ne, 21.564; Ar, 15.795; Kr, 13.999; hexane, 10.18.
  • 117
    • 85033058189 scopus 로고    scopus 로고
    • note
    • We assume a laser pulse energy of 10 ft], or 3 x 10° photons per pulse at 620 nm, a beam diameter of 2 mm. and an optical path length of 6 mm. The iodine vapor pressure at room temperature is about 0.3 mbar, corresponding to an iodine concentration of 1.4 x 10~5 mol L~'. For an extinction coefficient of 78 L mol"1 cm"1, Lambert-Beer's law gives a total absorption of the laser pulse of 0.15%. This corresponds to 4.5 x 10'° photoexcited iodine molecules or, correspondingly, a concentration of 4 x 10-' mol L"1.
  • 118
    • 85033059785 scopus 로고    scopus 로고
    • note
    • Recombination amplitudes larger than one do not correspond to quantum yields for geminate recombination larger than one. At 310 nm the A/A' state extinction coefficient (ss\2 000 L mol"' cm"1) is significantly larger than that of the B state.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.