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Adsorption of Acetonitrile on Si(111)-(7 x 7)

Authors
Hong, SuklyunMin, Kyung-AhPark, JinwooKim, HanchulMizutani, HironoriOkada, Michio
Issue Date
Sep-2020
Publisher
AMER CHEMICAL SOC
Citation
ACS OMEGA, v.5, no.38, pp 24179 - 24185
Pages
7
Journal Title
ACS OMEGA
Volume
5
Number
38
Start Page
24179
End Page
24185
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/1240
DOI
10.1021/acsomega.0c01445
ISSN
2470-1343
Abstract
The adsorption of acetonitrile (CH3CN) on Si(111)-(7 x 7) at a room temperature has been investigated using scanning tunneling microscopy (STM) and first-principles calculations. The site-specific information on adsorption enables us to understand the site-by-site and step-by-step adsorption mechanism. From theoretical simulations, the most stable configuration of CH3CN on Si(111)-(7 x 7) is found to be a molecularly chemisorbed CH3CN with the carbon and nitrogen atoms of CN bonded to the rest atom and adatom on the Si surface, respectively. Some chemisorption-induced features in the STM topographic image are assigned based on the theoretical calculations.
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