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论文类型：期刊论文

发表时间：2015-01-01

发表刊物：CRYSTENGCOMM

收录刊物：SCIE、Scopus

卷号：17

期号：48

页面范围：9311-9317

ISSN号：1466-8033

摘要：Fluorescent organic nanospheres, pod-like connecting spheres and microrods based on 1,2-diphenyl-4-(4-dibenzothienyl)phenyl-1,3-cyclopentadiene (DPCP) have been prepared via controlling the solvent composition. The influence of concentration, surfactants and solvents on the morphologies of products was examined. The formation of particles with different morphologies could be attributed to the solubility-controlled crystalline nucleation. Single crystal X-ray analysis reveals that the molecule of DPCP has a noncoplanar geometry, and two molecules are packed to form a dimer as an X-aggregate. Further, one-dimensional chains of DPCP additionally avoided the maximum face-to-face stacking. The solution of DPCP in methanol has weaker emission with a peak at 455 nm, however, the nanospheres, pod-like connecting spheres and microrods exhibited remarkably enhanced fluorescence emission with peaks at 447, 448 and 468 nm, respectively. Additionally, fluorescence change behavior was further verified by DFT calculation and time-resolved emission decay measurements.