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Photoemission of benzene on Os (0001 ): A synchrotron radiation study
Affiliation:1. State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University, Shenyang, 110819, China;2. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai, 200444, China;3. Center for Smart Structures and Materials, Northwestern University, Evanston, IL, 60208, USA;1. Department of Physics and Astrophysics, University of Delhi, Delhi, Delhi 110007, India;2. Department of Physics, Miranda House College, University of Delhi, Delhi, Delhi 110007, India;3. Department of Physics, Swami Shradhanand College, University of Delhi, Delhi, Delhi 110036, India;4. Department of Physics, Hansraj College, University of Delhi, Delhi, Delhi 110007, India;5. Department of Physics, Pt.N.R.S.G.C.Rohtak, Maharshi Dayanand University, Rohtak 124001, Haryana, India;1. Laser Processing Research Centre, Department of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK;2. Beiging Institute of Aerospace Control Devices, 52 Yongdong Road, Beijing, 100039, PR China;1. Laboratoire de Synthèse Organique LSO, UMR 7652 CNRS/ENSTA/École Polytechnique, Université Paris-Saclay, 91128 Palaiseau Cedex, France;2. Institute of Chemistry, Saint Petersburg State University, Universitetskii Pr. 26, 198504 Saint Petersburg, Russia
Abstract:The molecular structure and orientation of benzene on Os (0001 ) has been investigated by angle-resolved UV photoemission spectroscopy (ARUPS) using synchrotron radiation. At temperatures below 285 K benzene adsorbs in a molecular state and ARUPS indicates C3v symmetry. This implies that the adsorbed benzene molecules are oriented parallel to the metal surface with a trigonal distortion of their aromatic rings. Bonding to the surface occurs through the benzene π system.
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