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Volumn 16, Issue 9, 2000, Pages 4266-4271

Adsorption profiles of chelating aromatic dithiols and disulfides: comparison to those of normal alkanethiols and disulfides

Author keywords

[No Author keywords available]

Indexed keywords

ABSORPTION SPECTROSCOPY; AROMATIC COMPOUNDS; CHELATION; ELLIPSOMETRY; FILM GROWTH; GOLD; MONOLAYERS; RATE CONSTANTS; STRUCTURE (COMPOSITION); SULFUR COMPOUNDS; SURFACE CHEMISTRY;

EID: 0033728065     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la991100p     Document Type: Article
Times cited : (42)

References (45)
  • 29
  • 33
    • 0343928295 scopus 로고    scopus 로고
    • Unpublished results
    • Related samples of five-membered ring cyclic disulfides (i.e., aliphatic 1,2-dithiolanes) show resonances attributable to oligomeric/ polymeric species at chemical shifts of 0.1 ppm less than that of the parent dithiolane: Shon, Y. S.; Lee, T. R. Unpublished results.
    • Shon, Y.S.1    Lee, T.R.2
  • 35
    • 0343056678 scopus 로고    scopus 로고
    • Personal communication
    • Lees, W. J. Personal communication.
    • Lees, W.J.1
  • 42
    • 0343492565 scopus 로고    scopus 로고
    • note
    • We acknowledge that the adsorbate concentrations employed by Xu et al. 38 and by Yamada and Uosaki 40,41 were substantially lower than those employed in the present study. These differences in concentration might invalidate the adsorption model and corresponding analysis presented here. Future studies will explore concentration effects and will attempt to characterize any observable physisorbed intermediates.
  • 43
    • 0342622270 scopus 로고    scopus 로고
    • note
    • Recently, Jung et al. 5 proposed that the rates of chemisorption of thiols and disulfides differ due to the different manner in which they displace solvent from the surface. The authors proposed that while thiols require only one site for chemisorption, disulfides simultaneously require two sites for chemisorption. Since, however, the dithiol 1 and the disulfide 3 both simultaneously require two adsorption sites and the rate of adsorption of 1 appears substantially faster than that of 3, our data fail to support their proposal.
  • 45
    • 0343928293 scopus 로고    scopus 로고
    • note
    • It seems plausible that a similar but less pronounced effect might rationalize the reportedly slower rate of adsorption onto gold for normal dialkyl disulfides compared to that for normal alkanethiols. 8,20,32


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.