Variation of adsorption geometries by the influence of nucleophilicity among p-CPA, p-TPA, and p-NPA on Ge(100)
  • Lim, Heeseon
  • Yang, Sena
  • Lee, Myungjin
  • Kim, Sehun
  • Lee, Hangil
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초록

The geometric configurations among phenylalanine derivatives (p-chlorophenylalanine, (p-CPA) thiophenylalanine (p-TPA), and p-nitrophenylalanine (p-NPA)) adsorbed on Ge(1 0 0) surfaces were investigated using density functional theory (DFT) calculations. We focused on describing the role of nucleophilic group (-Cl, -SH, and -NO2) being included in p-CPA, p-TPA, and p-NPA molecules, which can affect the stable adsorption structure energies and geometric configurations when they adsorb on the Ge(1 0 0) surface. We confirmed that geometric differences in the adsorption configurations indicated that their phenyl rings were tilted with respect to the Ge(1 0 0) surface by the effect of nucleophilicity and different sizes among -Cl, -SH and -NO2 groups. (c) 2013 Published by Elsevier B.

키워드

SELF-ASSEMBLED MONOLAYERSELECTRONIC-STRUCTUREORGANIC-REACTIONSSURFACEPASSIVATIONPRINCIPLESPOTENTIALSCHEMISTRYINDEXX-1
제목
Variation of adsorption geometries by the influence of nucleophilicity among p-CPA, p-TPA, and p-NPA on Ge(100)
저자
Lim, HeeseonYang, SenaLee, MyungjinKim, SehunLee, Hangil
DOI
10.1016/j.cplett.2013.06.001
발행일
2013-07
유형
Article
저널명
Chemical Physics Letters
578
페이지
162 ~ 166