title: Chromogenic lariat ethers for selective alkali metal cation recognition.
abstract: Twelve new proton-ionizable, picrylamino-type chromogenic lariat ethers derived from dibenzo-14-crown-4, dibenzo-16-crown-5 and dibenzo-19-crown-6 demonstrate good selectivity and remarkable color response upon extraction of alkali metal cations from basic aqueous solutions into chloroform.
authors.affiliation: Department of Chemistry and Biochemistry, Texas Tech University, Lubbock 79409-1061, USA.
authors.forename: G G
authors.initials: GG
authors.lastname: Talanova
authors.forename: H S
authors.initials: HS
authors.lastname: Hwang
authors.forename: V S
authors.initials: VS
authors.lastname: Talanov
authors.forename: R A
authors.initials: RA
authors.lastname: Bartsch