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http://dx.doi.org/10.5012/bkcs.2010.31.11.3217

Electronic Structure and Bonding Configuration of Histidine on Ge(100)  

Lee, Han-Gil (Department of Chemistry, Sookmyung Women's University)
Youn, Young-Sang (Molecular-Level Interface Research Center, Department of Chemistry, KAIST)
Yang, Se-Na (Department of Chemistry, Sookmyung Women's University)
Jung, Soon-Jung (Molecular-Level Interface Research Center, Department of Chemistry, KAIST)
Kim, Se-Hun (Molecular-Level Interface Research Center, Department of Chemistry, KAIST)
Publication Information
Bulletin of the Korean Chemical Society / v.31, no.11, 2010 , pp. 3217-3220 More about this Journal
Abstract
The electronic structures and bonding configuration of histidine on Ge(100) have been investigated with various sample treatments using core-level photoemission spectroscopy (CLPES). Interpretation of the Ge 3d, C 1s, N 1s, and O 1s core level spectra being included in these systems revealed that both the imino nitrogen in the imidazole ring and the carboxyl group in the glycine moiety concurrently participate in the adsorption of histidine on a Ge(100) surface at 380 K. Moreover, we could clearly confirm that the imino nitrogen with a free lone pair in the imidazole group adsorbs on Ge(100) more strongly than the carboxyl group in the glycine moiety by examining systems annealed at various temperatures.
Keywords
Histidine; Ge(100); Core-level photoelectron spectroscopy (CLPES); Adsorption; Desorption;
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