title: Monolayers of a novel ionoselective butadienyl dye.
abstract: The novel amphiphilic benzodithia-18-crown-6 butadienyl dye (1) forms relatively stable insoluble monolayers on distilled water (collapse pressure of 41 mN/m) and on aqueous subphases containing alkali metal or heavy metal salts (collapse pressures in the range of 27-38 mN/m, respectively). The dye 1 monolayer organization depends on chromophore association and interactions (especially complex formation) with heavy and alkali metal ions as deduced from surface pressure-area and surface potential-area isotherms as well as reflection spectra and Brewster angle microscopy observations. Dye 1 undergoes specific interactions with Hg(2+) and Ag(+), respectively (formation of different complexes). Nonspecific interactions have been observed with other salts, such as KClO(4) or Pb(ClO(4))(2). Further, dye 1 monolayers on 1 mM Hg(ClO(4))(2) solution undergo reversible photoisomerization, in contrast to monolayers on water and other aqueous salt subphases.
authors.affiliation: Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklucho-Maklaya Str. 16/10, Moscow, 117871, Russia.
authors.forename: T I
authors.initials: TI
authors.lastname: Sergeeva
authors.forename: S Yu
authors.initials: SY
authors.lastname: Zaitsev
authors.forename: M S
authors.initials: MS
authors.lastname: Tsarkova
authors.forename: S P
authors.initials: SP
authors.lastname: Gromov
authors.forename: A I
authors.initials: AI
authors.lastname: Vedernikov
authors.forename: M S
authors.initials: MS
authors.lastname: Kapichnikova
authors.forename: M V
authors.initials: MV
authors.lastname: Alfimov
authors.forename: T S
authors.initials: TS
authors.lastname: Druzhinina
authors.forename: D
authors.initials: D
authors.lastname: Möbius