title: Crystal structure and complexation and fluorescence behaviors of 1,4-bis (9-anthracenylmethyl) piperazine.
abstract: The crystal structure of the photoinduced electron transfer (PET) fluoroionophore (3) was clarified by X-ray crystallographic analysis. A molecule 3 sits on a center of symmetry such that two anthracene ring systems are in an anti conformation with respect to one another across the piperazine ring. Intermolecular C-H···π and π···π interactions are observed. It was found that 3 was displayed unique photophysical properties in the presence of guest cations. Complexation of 3 with Zn²+ and NH⁴+ increased the fluorescence intensities of the host by a factor of 20.
authors.affiliation: School of Dentistry, Health Sciences University of Hokkaido. kubo-k@hoku-iryo-u.ac.jp
authors.forename: Kanji
authors.initials: K
authors.lastname: Kubo
authors.forename: Akinori
authors.initials: A
authors.lastname: Hayakawa
authors.forename: Tadamitsu
authors.initials: T
authors.lastname: Sakurai
authors.forename: Tetsutaro
authors.initials: T
authors.lastname: Igarashi
authors.forename: Taisuke
authors.initials: T
authors.lastname: Matsumoto
authors.forename: Hajime
authors.initials: H
authors.lastname: Takahashi
authors.forename: Haruko
authors.initials: H
authors.lastname: Takechi
mesh_terms: D000873:Anthracenes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004579:Electron Transport; D005453:Fluorescence; D008958:Models, Molecular; D015394:Molecular Structure; D055668:Photochemical Processes; D010879:Piperazines / Q000737:chemistry*; D013050:Spectrometry, Fluorescence
chemical_list: C559611:1,4-bis(9-anthracenylmethyl)piperazine; D000873:Anthracenes; D010879:Piperazines