Autocatalytic Dissociative Adsorption of Imidazole on the Ge(100)-2 x 1 Surface

被引：1
|
作者：
Shong, Bonggeun [1 ,2 ]
Kachian, Jessica [1 ,3 ]
Bent, Stacey F. [1 ]
机构：
[1] Stanford Univ, Dept Chem Engn, 443 Via Ortega, Stanford, CA 94305 USA
[2] Hongik Univ, Dept Chem Engn, 94 Wausan Ro, Seoul 04066, South Korea
[3] Appl Mat Inc, 974 East Argues Ave, Sunnyvale, CA 94085 USA
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2017年 / 121卷 / 38期
基金：
美国国家科学基金会; 新加坡国家研究基金会;
关键词：
SEMICONDUCTOR SURFACES; BONDING CONFIGURATION; NITROGEN-HETEROCYCLES; IONIC LIQUIDS; ATTACHMENT; PYRIDINE; SI(100); ETHYLENEDIAMINE; 1ST-PRINCIPLES; FRAMEWORKS;
D O I：
10.1021/acs.jpcc.7b07691
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：
The adsorption of imidazole on the Ge(100)-2 X 1 surface is studied with ultrahigh vacuum infrared spectroscopy experiments and density functional theory calculations. Imidazole datively bonds to the surface through its pyridinic nitrogen at low coverage, while dissociation of the pyrrolic N-H is observed upon larger exposure. The coverage-dependent change in the product distribution-is explained by autocatalytic activation of the dissociative adsorption via interaction between adjacent imidazole adsorbates. These results suggest an alternative explanation for the previously studied adsorption chemistry of bifunctional ethylenediamine on Ge(100)-2 X 1.
引用
收藏
页码：20905 / 20910
页数：6
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