Detection of C-Si covalent bond in CH3 adsorbate formed by chemical reaction of CH3MgBr and H:Si(111).
High-resolution electron energy loss spectroscopy (HREELS) yielded evidence for the formation of single covalent bonds between Si(111) surface atoms and CH(3) groups from the reaction of CH(3)MgBr and hydrogen-terminated H:Si(111)(1 x 1). The vibration at 678 cm(-)(1), assigned to the C-Si bond, was isolated within the spectrum of CH(3) on deuterium-terminated D:Si(111)(1 x 1). The CH(3) groups were thermally stable at temperatures below 600 K. The C-Si bonds are essential for enhancing the usefulness of alkyl moieties, which will lead to a new prospective technology of nanoscale fabrication and biochemical application.
Yamada
Taro
T
Kagami Memorial Laboratory for Materials Science and Technology, Waseda University, 2-8-26 Nishiwaseda, Shinjuku-ku, Tokyo 169-0051, Japan. tayamada@postman.riken.go.jp
Inoue
Tomoyuki
T
Yamada
Keiko
K
Takano
Nao
N
Osaka
Tetsuya
T
Harada
Hiroshi
H
Nishiyama
Katsuhiko
K
Taniguchi
Isao
I
D008697:Methane / Q000031:analogs & derivatives* / Q000737:chemistry; D017646:Organosilicon Compounds / Q000032:analysis* / Q000138:chemical synthesis; D012825:Silicon / Q000737:chemistry*; D013057:Spectrum Analysis / Q000379:methods*
D017646:Organosilicon Compounds; D008697:Methane; D012825:Silicon