Supramolecular Solid-State Microlaser Constructed from Pillar[5]arene-Based Host-Guest Complex Microcrystals

Bin Hua; Wei Zhou; Zhaoliang Yang; Zhihua Zhang; Li Shao; Haiming Zhu; Feihe Huang

doi:10.1021/jacs.8b11156

Supramolecular Solid-State Microlaser Constructed from Pillar[5]arene-Based Host-Guest Complex Microcrystals

J Am Chem Soc. 2018 Nov 21;140(46):15651-15654. doi: 10.1021/jacs.8b11156. Epub 2018 Nov 9.

Authors

Bin Hua¹, Wei Zhou¹, Zhaoliang Yang¹, Zhihua Zhang¹, Li Shao¹, Haiming Zhu¹, Feihe Huang¹

Affiliation

¹ State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry , Zhejiang University , Hangzhou 310027 , P. R. China.

PMID: 30395459
DOI: 10.1021/jacs.8b11156

Abstract

Herein we report a novel host-guest complex single crystal material based on a pillar[5]arene (P5) and a laser dye trans-4-[ p-(dimethylamino)styryl]-1-methylpyridinium iodide (DASP). Single crystal structure characterization shows that two P5 molecules act as a supramolecular nanocapsule for one isolated DASP molecule. This spatial confinement effectively restricts aggregation-caused quenching (ACQ) effects and other nonradiative channels (e.g., twisted intramolecular charge transfer), leading to high luminescent efficiency of the isolated DASP. Together with its regular shape and smooth surface, each 2P5⊃DASP microcrystal forms a Fabry-Pérot (F-P) microcavity and produces a stable laser output with a high Q factor and a low threshold.