Selective supramolecular assembly of multifunctional ligands on a Cu(111) surface: metallacycles, propeller trimers and linear chains |
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Authors: | Wang Weihua Wang Shiyong Hong Yuning Tang Ben Zhong Lin Nian |
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Institution: | Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China. whwang@ust.hk |
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Abstract: | We studied the supramolecular assembly of a multifunctional ligand, cis-bis-terpyridine tetraphenyl ethylene, on a Cu(111) surface by low-temperature scanning tunneling microscopy (STM). Three distinctive supramolecular structures, metallacycles, propeller-shaped clusters and extended linear chains, are formed under specific assembly conditions owing to different inter-molecular binding modes of Cu-coordination, van der Waals interaction and hydrogen bonding, respectively. |
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