title: Substituent Effect at the C4-Position of 1,3a,6a-Triazapentalene.
abstract: Various 2,4-disubstituted-1,3a,6a-triazapentalenes possessing methyl and phenyl groups at the C4-position were synthesized. Fluorescence observation of the synthetic 4-methyl- and 4-phenyl-1,3a,6a-triazapentalenes revealed that the introduction of a substituent at the C4-position allowed a long-wavelength shift of the fluorescence maximum. Furthermore, the phenyl group at the C4-position was found to induce a substantial increase in the extinction coefficient value.
authors.affiliation: Graduate School of Pharmaceutical Science, Tokushima University.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Nakayama
authors.forename: Satoshi
authors.initials: S
authors.lastname: Nishio
authors.forename: Akira
authors.initials: A
authors.lastname: Otani
authors.forename: Akane
authors.initials: A
authors.lastname: Mera
authors.forename: Ayumi
authors.initials: A
authors.lastname: Osawa
authors.forename: Keiji
authors.initials: K
authors.lastname: Tanino
authors.forename: Kosuke
authors.initials: K
authors.lastname: Namba
mesh_terms: D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000737:chemistry*; D005453:Fluorescence; D015394:Molecular Structure
chemical_list: C568178:1,3a,6a-triazapentalene; D019086:Bridged Bicyclo Compounds, Heterocyclic