Hydrogen-Bonded Amino Acid Network of Histidine on Ge(100)

被引：14

作者：

Jung, Soon Jung ^{[1
,2
,3
]}

Kim, Do Hwan ^{[1
,2
,3
,4
]}

Jeon, Seok Min ^{[3
]}

Hong, Suklyun ^{[1
,2
]}

Kim, Sehun ^{[3
]}

机构：

[1] Sejong Univ, Graphene Res Inst, Dept Phys, Seoul 143747, South Korea

[2] Sejong Univ, Inst Fundamental Phys, Seoul 143747, South Korea

[3] Korea Adv Inst Sci & Technol, Dept Chem, Mol Level Interface Res Ctr, Taejon 305701, South Korea

[4] Daegu Univ, Div Sci Educ, Gyeongbuk 712714, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 11期

关键词：

SCANNING TUNNELING MICROSCOPE; R-ALANINE; S-ALANINE; ADSORPTION; SURFACES; GLYCINE; CU(110); MOLECULES; CLUSTERS; SILICON;

D O I：

10.1021/jp108890s

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：

By controlling the exposing conditions, a highly ordered monolayer of amino acid On the semiconductor surface is observed for the first time. The detailed adsorption structure and the driving force have been explained by using the scanning tunneling spectroscopy (STM) and ab initio calculations. Basically, the most stable adsorption structures of histidine molecules are OH-dissociated and N-dative-bonded ones at low and high coverage. When they reach high coverage to get the interaction between the adsorbed histidine molecules, they are ordered and more stabilized with an additional energy of 0.17 eV/molecule. This additional energy is found to come from the NH center dot center dot center dot O hydrogen bonding, which acts as the driving force to form the self-assembled mono layer at high coverage.

引用

页码：4636 / 4641

页数：6

共 36 条

[1]

ANTHONY N, 1991, PROTEIN-STRUCT FUNCT, V11, P281

[2] Attachment of alanine and arginine to the Ge(100)-2x1 surface [J].