Molecular arrangement characteristics of a pyrrole-containing arachidic acid LB film

Seimei Sha Shiratori, Kohei Yokoi, Takeshi Nishikawa, Nobuaki Hirata, Kazuo Ikezaki, Toyosaka Moriizumi

Research output: Contribution to journalArticlepeer-review


The transformation of the molecular arrangement of an arachidic acid (C20) Langmuir-Blodgett (LB) film was studied with an increase of pyrrole (Py) quantity which we used as guest molecules to the host molecules, C20. The change of molecular occupation area of a C20 LB film was estimated by π-A curves, a quartz crystal microbalance method and friction force microscopy (FFM). It was found that a C20 LB film can contain Py molecules 1.4 times as large as C20 molecules. The observation by FFM showed the enlargement of the occupation area of C20 upon addition of Py, however, the molecules of C20 do not change the internal structure of the film upon compression. The experimental results show that the lattice constant of a C20 LB film is easy to control by the quantity of Py molecules contained in the LB film.

Original languageEnglish
Pages (from-to)66-68
Number of pages3
JournalThin Solid Films
Publication statusPublished - 1996 Sept 15


  • Arachidic acid
  • Friction force microscopy
  • Langmuir-Blodgett films
  • Molecular arrangement
  • Pyrrole

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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