Host-guest complexation of a pyrogallol[4]arene derivative at the air-water interface

Eric Waidely, Cyrus Pumilia, Andres Malagon, Edgar F. Vargas, Shanghao Li, Roger M. Leblanc

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The host-guest properties of acetylated aryl pyrogallol[4]arene (AcPy) were studied as a Langmuir monolayer at the air-water interface. The self-assembled Langmuir monolayer properties and interactions with monovalent and divalent metal cations were investigated using surface pressure- and surface potential-area isotherms, compression-decompression cycles, stability, and infrared reflection-absorption spectroscopy (IRRAS). A favorable interaction is observed for complexation between acetylated aryl pyrogallol[4]arene with divalent calcium and cadmium cations, while no interaction is observed for monovalent sodium and potassium cations. Spectroscopic techniques allow for discrimination between cadmium and calcium complexation.

Original languageEnglish (US)
Pages (from-to)1368-1375
Number of pages8
JournalLangmuir
Volume31
Issue number4
DOIs
StatePublished - Feb 3 2015

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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