title: Construction and function of a highly efficient supramolecular luminescent system.
abstract: Aggregation-induced emission (AIE) provides a new way of achieving highly efficient luminescent materials. In this contribution, the self-assembly behavior, molecular stacking structure and photophysical properties of two polymorphs of a supramolecular co-crystal (C1 and C2) are investigated. The block-like crystal C1, packed in segregated stacking with strong π-π interactions between the H and G molecules, shows weak green emission with a low efficiency (ΦF) of 2%. In comparison, the needle-like crystal C2, packed in segregated stacking with no obviously strong intermolecular interactions, shows bright yellow emission. More importantly, C1 exhibits mechanochromic behavior.
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Qianjin Street No. 2699, Changchun 130012, China. xubin@jlu.edu.cn wjtian@jlu.edu.cn.
authors.forename: Yingjie
authors.initials: Y
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Qianjin Street No. 2699, Changchun 130012, China. xubin@jlu.edu.cn wjtian@jlu.edu.cn.
authors.forename: Suqian
authors.initials: S
authors.lastname: Ma
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Qianjin Street No. 2699, Changchun 130012, China. xubin@jlu.edu.cn wjtian@jlu.edu.cn.
authors.forename: Bin
authors.initials: B
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Qianjin Street No. 2699, Changchun 130012, China. xubin@jlu.edu.cn wjtian@jlu.edu.cn.
authors.forename: Wenjing
authors.initials: W
authors.lastname: Tian