Dissociation and [2+2]-like cycloaddition of unsaturated chain amines on Si(111)-7x7

作者：Huang, Jing Yan; Tang, Hai Hua; Shao, Yan Xia; Liu, Qi Ping; Alshahateet, Solhe F.; Sun, Yue Ming; Xu, Guo Qin^*

来源：Journal of Physical Chemistry C, 2007, 111(18): 6732-6739.

DOI：10.1021/jp067276z

• SCANNING-TUNNELING-MICROSCOPY
• X-RAY PHOTOELECTRON
• CONFORMATIONAL-ANALYSIS
• ELECTRONIC-STRUCTURE
• SURFACE-CHEMISTRY
• ORGANIC-MOLECULES
• SI(100)-2 X-1
• ADSORPTION
• SILICON
• DECOMPOSITION

The covalent attachment of N-methylallylamine (MAA) and N,N-dimethylallylamine (DMAA) on Si(111)-7x7 was investigated with high-resolution electron energy loss spectroscopy (HREELS) and X-ray photoelectron spectroscopy (XPS). Experimental results showed that MAA chemisorbs dissociatively on Si(111)-7x7 through the cleavage of its N-H bond, while DMAA is covalently bonded to the silicon surface via a [2+2]-like cycloaddition between its CC group and the adjacent adatom-rest atom pair. This study demonstrates that the selective organic functionalization of silicon surfaces can be achieved by fine-tuning molecular structures.

• 出版日期2007-5-10
• 单位东南大学