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Surface polymerization: Small 5/2009
Author(s) -
LiptonDuffin J. A.,
Ivasenko O.,
Perepichka D. F.,
Rosei F.
Publication year - 2009
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200990021
Subject(s) - monomer , polymerization , poly(p phenylene) , zigzag , materials science , conjugated system , polymer chemistry , polymer , epitaxy , substrate (aquarium) , phenylene , crystallography , chemistry , nanotechnology , composite material , layer (electronics) , geometry , mathematics , oceanography , geology
The cover image shows a rendering of conjugated poly(para‐phenylene) epitaxially grown at the surface of Cu(110) by the Ullmann reaction. The diiodobenzene monomer is dosed onto a substrate held at 500 K. Upon arrival at the substrate, the C–I bonds are catalytically cleaved, and the produced copper‐bound phenylene intermediates diffuse on the surface until meeting together and coupling through a C–C bond, subsequently producing straight polymer lines along the [1–10] direction. The formation of these straight lines is demonstrated, as well as the formation of zigzag lines and macrocycles produced by varying the structure of the monomer (1,4‐ or 1,3‐diiodobenzene). For more information, please read the Full Paper “Synthesis of Polyphenylene Molecular Wires by Surface‐Confined Polymerization” by F. Rosei et al., beginning on page 592 .