液晶CPBOB吸附的STM研究  

Scanning Tunneling Microscope (STM) Studies of Liquid Crystals of CPBOB

作　　者：汪振霞[1] 谭忠印[1] 朱传风[2] 王乃新[2] 白春礼[2] 

机构地区：[1]辽宁师范大学化学系,大连116022 [2]中国科学院化学研究所,北京100080

出　　处：《物理化学学报》1996年第10期957-960,共4页Acta Physico-Chimica Sinica

摘　　要：The adsorption structures of 4-cyanophenyl 4-butoxy benzoate(CPBOB) on graphite are studied by Scanning Tunneling Microscope(STM) at room temperature from the mixture of two different liquid crystals. STM images of CPBOB molecules are visualized for the first time with a near-atomic resolution. The adsorption structures are also investigated by molecular dynamical calculation. The STM images of CPBOB are stable in the period of 12 hours. These results indicate that liquid crystals of higher melting point on the surface of graphite can be studied by STM at the room temperature and the CPBOB mnolecules in a unit are orientated in the way of head to head.The adsorption structures of 4-cyanophenyl 4-butoxy benzoate(CPBOB) on graphite are studied by Scanning Tunneling Microscope(STM) at room temperature from the mixture of two different liquid crystals. STM images of CPBOB molecules are visualized for the first time with a near-atomic resolution. The adsorption structures are also investigated by molecular dynamical calculation. The STM images of CPBOB are stable in the period of 12 hours. These results indicate that liquid crystals of higher melting point on the surface of graphite can be studied by STM at the room temperature and the CPBOB mnolecules in a unit are orientated in the way of head to head.

关 键 词：混合法 液晶 扫描隧道显微镜 CPBOB 吸附 

分 类 号：O753.2[理学—晶体学] O647.3