title: Host-guest complexation of a pyrogallol[4]arene derivative at the air-water interface.
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.
authors.affiliation: Department of Chemistry, University of Miami , 1301 Memorial Drive, Cox Science Center, Coral Gables, Florida 33146, United States.
authors.forename: Eric
authors.initials: E
authors.lastname: Waidely
authors.forename: Cyrus
authors.initials: C
authors.lastname: Pumilia
authors.forename: Andres
authors.initials: A
authors.lastname: Malagon
authors.forename: Edgar F
authors.initials: EF
authors.lastname: Vargas
authors.forename: Shanghao
authors.initials: S
authors.lastname: Li
authors.forename: Roger M
authors.initials: RM
authors.lastname: Leblanc