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Spontaneous separation of on-surface synthesized tris-helicenes into two-dimensional homochiral domains

The on-surface Ullmann coupling of 2,3-dibromo[4]helicene molecules is studied on Au(111) and Cu(111) surfaces. Bis-helicene and tris-helicene are identified with scanning tunnelling microscopy and X-ray photoelectron spectroscopy as reaction products. The produced star-shaped tris-helicenes self-assemble on Au(111

Authors:   Jingyi Li; Kévin Martin; Narcis Avarvari; Christian Wäckerlin; Karl-Heinz Ernst
Journal:   Chemical Communication
DOI:   10.1039/C8CC04235G
Facts, background information, dossiers
  • helicene
  • Ullmann Coupling
  • Ullmann Reaction
  • molecules
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