title: Copper(II)/phenanthroline-mediated CD-enhancement and chiral memory effect on a meta-ethynylpyridine oligomer.
abstract: meta-Ethynylpyridine 18-mer associates with octyl β-D-glucopyranoside to show an induced circular dichroism (CD) band at around 337 nm in CH(2)Cl(2). The addition of copper(II) triflate and o-phenanthroline enhanced the CD band. Even when an equimolar amount of β-L-glucopyranoside was added to make the system racemic, the CD was memorized and remained for several weeks.
authors.affiliation: Graduate School of Pharmaceutical Sciences, University of Toyama, Sugitani 2630, Toyama, Toyama 930-0194, Japan.
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Takashima
authors.forename: Hajime
authors.initials: H
authors.lastname: Abe
authors.forename: Masahiko
authors.initials: M
authors.lastname: Inouye
mesh_terms: D002942:Circular Dichroism; D003300:Copper; D018360:Crystallography, X-Ray; D005025:Ethylene Dichlorides / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry*; D008698:Mesylates / Q000737:chemistry*; D008958:Models, Molecular; D010618:Phenanthrolines / Q000737:chemistry*; D058105:Polymerization; D011725:Pyridines / Q000737:chemistry*; D013237:Stereoisomerism; D014753:Vinyl Compounds / Q000737:chemistry*
chemical_list: D005025:Ethylene Dichlorides; D005960:Glucosides; D008698:Mesylates; D010618:Phenanthrolines; D011725:Pyridines; D014753:Vinyl Compounds; C507758:ethynylpyridine; D003300:Copper; C012077:trifluoromethanesulfonic acid; C025205:1,10-phenanthroline