title: Fluorometric sensing of alkaline Earth metal cations by new lariat ethers having plural pyrenylmethyl groups on the electron-donating sidearms.
abstract: [structure: see text] New fluorescent compounds (1), lariat ethers having plural pyrenylmethyl groups on the sidearms, were prepared, and their complexation behavior with alkaline earth metal cations was examined by fluorescence spectrometry. The pyrene excimer emission decreased accompanied with an increase in the monomer emission upon complexation with the metal ion. This finding is ascribed to the cooperative participation of one of the two sidearms in the complexation of the crown ring with the metal ion.
authors.affiliation: Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Japan.
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Nakahara
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Matsumi
authors.forename: Wanbin
authors.initials: W
authors.lastname: Zhang
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Kida
authors.forename: Yohji
authors.initials: Y
authors.lastname: Nakatsuji
authors.forename: Isao
authors.initials: I
authors.lastname: Ikeda