title: Binding mechanisms of methacrylic acid and methyl methacrylate on si(111)-7 x 7 -- effect of substitution groups.
abstract: The interaction of methacrylic acid and methyl methacrylate with Si(111)-7 x 7 has been investigated using high-resolution electron energy loss spectroscopy (HREELS) and X-ray photoelectron spectroscopy (XPS). While methacrylic acid chemisorbs dissociatively through O-H bond cleavage, methyl methacrylate is covalently attached to the silicon surface via a [4+2] cycloaddition. The different reaction pathways of these two compounds on Si(111)-7 x 7 demonstrate that the substitution groups play an important role in determining the reaction channels for multifunctional molecules, leading to the desired flexibility in the organic modification of silicon surfaces.
authors.affiliation: Department of Chemistry, National University of Singapore, 10 Kent Ridge, Singapore 119260, Singapore.
authors.forename: Jing Yan
authors.initials: JY
authors.lastname: Huang
authors.forename: Yan Xia
authors.initials: YX
authors.lastname: Shao
authors.forename: Hai Gou
authors.initials: HG
authors.lastname: Huang
authors.forename: Ying Hui
authors.initials: YH
authors.lastname: Cai
authors.forename: Yue Sheng
authors.initials: YS
authors.lastname: Ning
authors.forename: Hai Hua
authors.initials: HH
authors.lastname: Tang
authors.forename: Qi Ping
authors.initials: QP
authors.lastname: Liu
authors.forename: Solhe F
authors.initials: SF
authors.lastname: Alshahateet
authors.forename: Yue Ming
authors.initials: YM
authors.lastname: Sun
authors.forename: Guo Qin
authors.initials: GQ
authors.lastname: Xu
mesh_terms: D001895:Boron / Q000737:chemistry; D003500:Cyclization; D007202:Indicators and Reagents; D008689:Methacrylates / Q000737:chemistry*; D020366:Methylmethacrylate / Q000737:chemistry; D012828:Silicones / Q000737:chemistry*; D013052:Spectrometry, X-Ray Emission; D046590:Spectroscopy, Electron Energy-Loss; D013499:Surface Properties
chemical_list: D007202:Indicators and Reagents; D008689:Methacrylates; D012828:Silicones; D020366:Methylmethacrylate; C008384:methacrylic acid; D001895:Boron