物理化学学报 >> 2001, Vol. 17 >> Issue (07): 600-603.doi: 10.3866/PKU.WHXB20010705

研究论文 上一篇    下一篇

C2H2在Ru(1010)表面上的分子轨道对称性

张建华;吴悦;庄友谊;张寒洁;李海洋;何丕模;鲍世宁;刘凤琴;奎热西 易卜拉欣;钱海杰   

  1. 浙江大学物理系, 杭州 310027;中国科学院高能物理研究所同步辐射实验室,北京 100039
  • 收稿日期:2001-01-11 修回日期:2001-02-26 发布日期:2001-07-15
  • 通讯作者: 鲍世宁 E-mail:phybao@dial.zju.edu.cn

Orbital Symmetry of the Acetylene on Ru(1010) Surface

Zhang Jian-Hua;Wu Yue;Zhuang You-Yi;Zhang Han-Jie;Li Hai-Yang;He Pi-Mo;Bao Shi-Ning;Liu Feng-Qin;K.Yibulaxin;Qian Hai-Jie   

  1. Physics Department, Zhejiang University,Hangzhou 310027;Laboratory for Synchrotron Radiation,Institute of High Energy Physics,Chinese A cademy of Sciences,Beijing 100039
  • Received:2001-01-11 Revised:2001-02-26 Published:2001-07-15
  • Contact: Bao Shi-Ning E-mail:phybao@dial.zju.edu.cn

摘要: 利用角分辨紫外光电子能谱对低温下(160 K)乙炔(C2H2)气体在Ru()表面的吸附 进行了研究.实验结果表明:乙炔的C-C轴并不平行于衬底表面, C-C轴在<0001>晶向和表 面法线组成的平面内有一定的倾斜.与气相乙炔分子不同,在Ru()表面吸附的乙炔分子的C-H 轴不是沿C-C轴向.

关键词: 乙炔, Ru(1010)表面, 分子轨道, 对称性, 角分辨紫外光电子能谱

Abstract: The acetylene (C2H2) adsorbed on Ru() surface has been studied by usin g angle-resolved ultraviolet photoelectron spectroscopy (ARUPS). The dependence of the σCC peak intensity on incidence angle and emission angle shows that C- C axis of acetylene(C2H2)is not parallel to the Ru() surface(see Fig.2). The C -C axis of acetylene is tilted in <0001> azimuth according to its symmetry(see Fig.3). Not as the acetylene in gas phase,the C-H bond of the acetylene adsorbe d on Ru () surface is not along the direction of the C-C bond.

Key words: Acetylene, Ru(1010) surface, Molecular orbit, Symmetry, ARUPS