title: Synthesis and self-assembly of dichalcone substituted carbazole-based low-molecular mass organogel.
abstract: We report the synthesis and self-assembly of a new pi-conjugated dichalcone substituted carbazole-based low molecular mass organogelator. It could form stable gels in most halogen-aromatic solvents. The transmission electron microscopy (TEM) images revealed that the gel formed fibrous structures with diameter of 50-100 nm, which consisted of several thinner fibers. The FT-IR, UV-vis and XRD results suggested that the H-bonds and pi-pi interactions were the main driving forces for the formation of the self-assembled gel, in which the U-shaped molecules were stacked into lamellar structures. The fluorescent spectra showed that the emission of the xerogel red-shifted markedly compared with the sol state, which resulted from the aggregation of the molecules.
authors.affiliation: Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, PR China.
authors.forename: Lihong
authors.initials: L
authors.lastname: Su
authors.forename: Chunyan
authors.initials: C
authors.lastname: Bao
authors.forename: Ran
authors.initials: R
authors.lastname: Lu
authors.forename: Yulan
authors.initials: Y
authors.lastname: Chen
authors.forename: Tinghua
authors.initials: T
authors.lastname: Xu
authors.forename: Dongpo
authors.initials: D
authors.lastname: Song
authors.forename: Changhui
authors.initials: C
authors.lastname: Tan
authors.forename: Tongshun
authors.initials: T
authors.lastname: Shi
authors.forename: Yingying
authors.initials: Y
authors.lastname: Zhao