메뉴 건너뛰기




Volumn 105, Issue 16, 2001, Pages 3306-3318

Local density augmentation in supercritical solvents: Electronic shifts of anthracene derivatives

Author keywords

[No Author keywords available]

Indexed keywords

CARBON DIOXIDE; COMPUTER SIMULATION; DENSITY (SPECIFIC GRAVITY); DERIVATIVES; EMISSION SPECTROSCOPY; ETHANE; FREE ENERGY; SOLVENTS;

EID: 0035953985     PISSN: 15206106     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp0043672     Document Type: Article
Times cited : (107)

References (60)
  • 1
    • 4243389839 scopus 로고    scopus 로고
    • note
    • For a number of reviews related to solvation in supercritical solvents, see: Chem. Rev. 1999, 99, issue 2. References 2 and 3 from this collection discuss the phenomenon of density augmentation extensively.
    • (1999) Chem. Rev. , vol.99 , Issue.2
  • 9
    • 0011615154 scopus 로고    scopus 로고
    • note
    • References 3, 10, and 11 summarize the results of many of the spectroscopic studies performed to date.
  • 13
    • 0011670942 scopus 로고    scopus 로고
    • note
    • A listing of the direct comparisons made between simulations and experimental data is provided in Table 7 of ref 10.
  • 14
    • 0011615155 scopus 로고    scopus 로고
    • note
    • Two recent studies in which a range of solutes were examined and density augmentation correlated to estimates of the relative strength of solute-solvent interactions are refs 15 and 16.
  • 24
    • 85085715823 scopus 로고    scopus 로고
    • note
    • 2 and 1% in ethane over range of conditions relevant here.
  • 29
    • 85085717087 scopus 로고    scopus 로고
    • note
    • 1 states.
  • 33
    • 85085717882 scopus 로고    scopus 로고
    • note
    • 2, and their data lead to the same conclusion.
  • 34
    • 85085715638 scopus 로고    scopus 로고
    • note
    • 2, and possibly also in ethane, but we have recorded excitation spectra in these systems.
  • 37
    • 0011683129 scopus 로고    scopus 로고
    • note
    • -1. Renge has previously noted a similarly improved agreement with gas-phase data when the reaction field in eq 5 is used in favor of that in eq 6.
  • 38
    • 0011607031 scopus 로고    scopus 로고
    • note
    • r ∼ 2.75) typical of liquid solvents, the true density in the first solvation shell of most solutes is in fact larger than the bulk solvent density due to packing effects. The effective local densities determined here are only measured relative to the local density present in a typical liquid situation, which is defined to be the "bulk" density.
  • 44
    • 0011557086 scopus 로고    scopus 로고
    • note
    • The widths of spectral features also varies in the compressible regime, as illustrated by the multiple sets of anthracene/ethane data shown in Figure 2b. We noted a modest correlation between the measured widths and frequencies in multiple data sets wherein narrower line widths were correlated with lower frequencies (greater augmentation). Although the presence of such a correlation suggests that some uncontrolled factor influences the data in the compressible regime, we were unable to discover what this factor might be. It does not appear to be related to the presence or absence of the macroscopic temperature/density inhomogeneities discussed in section II.
  • 57
    • 0004140502 scopus 로고
    • Static relative permittivity of some compressed fluids
    • Taniguchi, Y., Senoo, M.,Hara, K., Eds.; Elsevier: New York
    • Kita, T.; Uosaki, Y.; Moriyoshi, T. Static Relative Permittivity of some Compressed Fluids. In High-Pressure Liquids and Solutions; Taniguchi, Y., Senoo, M.,Hara, K., Eds.; Elsevier: New York, 1994; p 181.
    • (1994) High-Pressure Liquids and Solutions , pp. 181
    • Kita, T.1    Uosaki, Y.2    Moriyoshi, T.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.