Cationic self-assembled monolayers composed of gemini-structured sulfur compounds on gold: A new approach to control ionic functions on surfaces

Shinobu Yokokawa, Masahiko Hara, Kaoru Tamada, Eisuke Ito

Research output: Contribution to journalArticlepeer-review

Abstract

Cationic self-assembled monolayers (SAMs) composed of quaternary ammonium (QA) sulfur derivatives have been synthesized to control a position and a distance between charged head groups on gold substrates. Three molecules bearing resembling molecular structures, "gemini"-structured didodecyl dithiol (HS-gQA-SH), didodecyl disulfide (QA-SS-QA), and gemini-structured didodecyl disulfide (gQA-SS-gQA), were utilized in this study, and the formation and structure of the SAMs were characterized by surface plasmon resonance spectroscopy (SPR).

Original languageEnglish
Pages (from-to)115/[511]-120/[516]
JournalMolecular crystals and liquid crystals
Volume407
DOIs
Publication statusPublished - 2003
Externally publishedYes

Keywords

  • Gemini (dimeric) surfactant
  • Quaternary ammonium group
  • Self-assembled monolayer
  • Surface plasmon resonance

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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