Substrate tuned reconstructed polymerization of naphthalocyanine on Ag(110) |
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| Authors: | Qi Zheng Li Huang Deliang Bao Rongting Wu Yan Li Xiao Lin Shixuan Du Hong-Jun Gao |
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| Affiliation: | (Beijing National Center for Condensed Matter Physics and Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;CAS Center for Excellence in Topological Quantum Computation,University of Chinese Academy of Sciences,Beijing 100190,China;Department of Physics and Astronomy and Department of Electrical Engineering and Computer Science,Vanderbilt University,Nashville,TN 37235,USA;Songshan Lake Materials Laboratory,Dongguan 523808,China) |
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| Abstract: | The linkage structures between monomers make great influence on the properties of polymers. The synthesis of some special linkage structures can be challenging, which is often overcome by employing special reaction conditions. Here, we build dihydropentalene linkage in poly-naphthalocyanine on Ag(110) surface. Scanning tunneling microscopy (STM) and non-contact atomic force microscopy (nc-AFM) measurements confirm the dihydropentalene linkage structure and a possible formation path with reconstruction steps is proposed. The controlled experiment on Ag(100) surface shows no dihydropentalene structures formed, which indicates the grooved substrate is necessary for the reconstruction. This work provides insights into the surface restricted reactions that can yield special structures in organic polymers. |
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| Keywords: | on-surface polymerization reconstruction scanning tunneling microscopy noncontact atomic force microscopy |
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