title: Carbazole-based organogel as a scaffold to construct energy transfer arrays with controllable fluorescence emission.
abstract: A diaryldiketopyrrolopyrrole derivative functionalized with phenothiazine moieties (DPPP) was synthesized and introduced into the ordered 4-(3,6-di-tert-butyl-9H-carbazol-9-yl)benzamide (TBCB) organogel system. It was found that TBCB-based gel became a scaffold to make DPPP molecules line up along the gel fibers, resulting in new self-assembled arrays, whose XRD patterns were quite different from those of the neat TBCB gel and DPPP crystal. In the composite gel, the occurrence of a partial energy transfer from the excited light-harvesting antenna of TBCB to the DPPP acceptor was confirmed on the basis of time-dependent and time-resolved fluorescence investigations. Remarkably, the composite gel could emit intense red light or purplish white light by tuning the excitation wavelength. Such ordered soft materials with color-tunable emission may possess potential applications in sensor and photonic devices.
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China.
authors.forename: Xinchun
authors.initials: X
authors.lastname: Yang
authors.forename: Ran
authors.initials: R
authors.lastname: Lu
authors.forename: Pengchong
authors.initials: P
authors.lastname: Xue
authors.forename: Bin
authors.initials: B
authors.lastname: Li
authors.forename: Defang
authors.initials: D
authors.lastname: Xu
authors.forename: Tinghua
authors.initials: T
authors.lastname: Xu
authors.forename: Yingying
authors.initials: Y
authors.lastname: Zhao
mesh_terms: D001549:Benzamides / Q000737:chemistry*; D002227:Carbazoles / Q000737:chemistry*; D004735:Energy Transfer; D005453:Fluorescence; D005782:Gels / Q000737:chemistry; D015394:Molecular Structure; D010316:Particle Size; D011758:Pyrroles / Q000138:chemical synthesis / Q000737:chemistry*; D013499:Surface Properties; D013997:Time Factors; D014961:X-Ray Diffraction
chemical_list: C539184:4-(3,6-di-tert-butyl-9H-carbazol-9-yl)benzamide; D001549:Benzamides; D002227:Carbazoles; D005782:Gels; D011758:Pyrroles; C041514:carbazole