Adsorption and structure of methyl mercaptoacetate on Cu(1 1 1) surface by XPS and NEXAFS spectroscopy

  • Wada S
  • Takigawa M
  • Matsushita K
 et al. 
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Abstract

Methyl mercaptoacetate (MA) on Cu(1 1 1) surface was investigated using synchrotron radiation-based X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. MA adsorbs on the surface via thiolate formation and weak interaction of the carbonyl group with the surface. Two different adsorption states previously reported for methanethiolate and ethanethiolate were confirmed, besides atomic sulfur. NEXAFS measurements support gauche-type conformation of MA whose skeleton lies on the surface. © 2007 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Chemisorption
  • Copper
  • Esters
  • Near-edge X-ray absorption fine structure (NEXAFS)
  • Soft X-ray photoelectron spectroscopy
  • Thiols

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Authors

  • Shin ichi Wada

  • Masahiko Takigawa

  • Kazuhiro Matsushita

  • Hiroyuki Kizaki

  • Kenichiro Tanaka

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