Dynamics of confined carbon disulfide from 165 to 310 K

被引:46
作者
Farrer, RA [1 ]
Loughnane, BJ [1 ]
Fourkas, JT [1 ]
机构
[1] BOSTON COLL,EUGENE F MERKERT CHEM CTR,CHESTNUT HILL,MA 02167
关键词
D O I
10.1021/jp970510o
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Optical-heterodyne-detected Raman-induced Kerr effect spectroscopy is used to study the dynamics of CS2 confined to sol-gel glasses with 24-Angstrom pores, over the entire temperature range at which CS2 is a liquid. At all temperatures, the data are consistent with the existence of a layer of molecules at the pore surfaces that experiences a higher effective viscosity than that of the bulk liquid. Within this model, orientational correlation times and relative populations are extracted for the bulklike and surface molecules. The surface layer is found to be less than one molecule thick over the entire temperature range, with a modest increase in thickness as the temperature is lowered.
引用
收藏
页码:4005 / 4010
页数:6
相关论文
共 30 条
  • [1] Dielectric investigations of the dynamic glass transition in nanopores
    Arndt, M
    Stannarius, R
    Gorbatschow, W
    Kremer, F
    [J]. PHYSICAL REVIEW E, 1996, 54 (05) : 5377 - 5390
  • [2] STRUCTURAL STUDY OF WATER CONFINED IN POROUS-GLASS BY NEUTRON-SCATTERING
    BELLISSENTFUNEL, MC
    LAL, J
    BOSIO, L
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1993, 98 (05) : 4246 - 4252
  • [3] BRINKER CJ, 1990, SOL GEL SCI PHYSICS
  • [4] Debye P., 1929, POLAR MOL
  • [5] DEEG FW, 1995, DYNAMICS SMALL CONFI, V2
  • [6] DEEG FW, 1987, J CHEM PHYS, V87, P6240
  • [7] DRAKE JM, 1993, DYNAMICS SMALL CONFI
  • [8] DRAKE JM, 1995, DYNAMICS SMALL CONFI, V2
  • [9] Level-dependent damping in intermolecular vibrations: Linear spectroscopy
    Farrer, RA
    Loughnane, BJ
    Deschenes, LA
    Fourkas, JT
    [J]. JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (17) : 6901 - 6915
  • [10] THE TRANSIENT GRATING - A HOLOGRAPHIC WINDOW TO DYNAMIC PROCESSES
    FOURKAS, JT
    FAYER, MD
    [J]. ACCOUNTS OF CHEMICAL RESEARCH, 1992, 25 (05) : 227 - 233