Chinese Science Bulletin

, Volume 46, Issue 5, pp 377–379 | Cite as

Adlayer structure of TCNQ molecules on Cu(111): Anin situ STM study

  • Lijun Wan
  • Itaya Kingo


In situ electrochemical scanning tunneling microscopy (STM) was employed to examine tetracyanoquinodimethane (TCNQ) layer adsorbed on Cu(111) electrode surface in 0.1 mol/L HClO4 solution. The TCNQ molecules are found to form highly-ordered long range adlayer with a (4 × 4) symmetry. Each TCNQ molecule is adsorbed on Cu(111) surface in flat-lying orientation. The molecules are preferentially aligned with their long axes in the [1¯21 ] direction. A structural model is proposed for the adlayer.


TCNQ molecule electrochemical scanning tunneling microscopy Cu(111) adlayer structure 


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Copyright information

© Science in China Press 2001

Authors and Affiliations

  • Lijun Wan
    • 1
  • Itaya Kingo
    • 2
  1. 1.Institute of ChemistryChinese Academy of SciencesBeijingChina
  2. 2.Department of Applied Chemistry, Graduate School of EngineeringTohoku UniversitySendaiJapan

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