J. A. Lipton-Duffin, O. Ivasenko, D. F. Perepichka and F. Rosei Synthesis of Polyphenylene Molecular Wires by Surface-Confined Polymerization Small 5
Epitaxially aligned conjugated polymer wires (polyphenylene) are formed by exposing a surface of Cu(110) to a vapor of isomeric diiodobenzene molecules and subsequent annealing at ≈200 °C (see image). The substitution pattern (symmetry) of the monomer defines the structure of the polymer: straight parallel lines are formed from 1,4-diiodobenzene, while zigzag lines and macrocycles are produced from 1,3-diiodobenzene.
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