Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.3407442
Title: Enabling enelike reactions on Si (111) -7×7 through tuning organic molecular structures
Authors: Cai, Y.H.
Shao, Y.X.
Ning, Y.S.
Tang, H.H.
Wang, S. 
Xu, G.Q. 
Issue Date: 7-Jun-2010
Citation: Cai, Y.H., Shao, Y.X., Ning, Y.S., Tang, H.H., Wang, S., Xu, G.Q. (2010-06-07). Enabling enelike reactions on Si (111) -7×7 through tuning organic molecular structures. Journal of Chemical Physics 132 (21) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3407442
Abstract: We previously demonstrated that acetonitrile (NC CH3) binds to the adjacent adatom-rest atom pair of Si (111) -7×7 through a [2+2] -like cycloaddition reaction, forming a (Si) NC (Si) CH3 -like surface species [Tao, J. Phys. Chem. B 106, 3890 (2002)]. Current investigation clearly showed that chloroacetonitrile (NC CH2 Cl), propargyl chloride (HCC CH2 Cl), and 3-chloropropionitrile (NC CH2 CH2 Cl) react with the surface via enelike reactions, concurrently involving NC/CC as well as the breakage of the CCl/CH bond. Further separation of the unsaturated bond (CC) from the CCl bond using CH2 spacers in 5-chloro-1-pentyne (CHC CH2 CH2 CH2 Cl) would direct the reaction to a [2+2] -like cycloaddition. These experimental results clearly suggest the possibility of controlling the surface reaction pathways by tuning the organic molecular structures. This strategy can be useful in designing and fabricating functional molecular templates on Si (111) -7×7. © 2010 American Institute of Physics.
Source Title: Journal of Chemical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/93731
ISSN: 00219606
DOI: 10.1063/1.3407442
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