Two-dimensional metallo-supramolecular polymerization: toward size-controlled multi-strand polymers.
Multi-strand metallo-supramolecular polymers are self-assembled by pyridyl-functionalized porphyrin derivatives on a Au(111) surface through pyridyl-Cu-pyridyl coordination. Single-molecule-resolved characterization by scanning tunneling microscopy reveals a novel chain-growth polymerization mechanism for multi-strand supramolecular polymers. Furthermore, by varying the growth temperature and adding specific molecular modulators, both the length and the width of the polymers can be controlled.
Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, China.
Jinne
J
Adisoejoso
Yang
Y
Li
Jun
J
Liu
Pei Nian
PN
Liu
Nian
N
Lin
D003300:Copper / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008665:Metalloporphyrins / Q000737:chemistry*; D016252:Microscopy, Scanning Tunneling; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry
D046911:Macromolecular Substances; D008665:Metalloporphyrins; D009942:Organometallic Compounds; D011108:Polymers; D006046:Gold; D003300:Copper