Aggregation-tuned dual emission of silole derivatives: synthesis, crystal structure, and photophysical properties. (12th March 2020)

• Record Type: Journal Article
• Authors: Cao, Ruiqi; Ai, Liqing; Yang, Hongxia; Li, Shuhong; Xu, Caihong
• Is Part Of: New journal of chemistry. Volume 44:Number 13(2020)
• Page Start: 5049
• Page End: 5055
• Publication Date: 2020-03-12
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d0nj00341g
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Novel silole derivatives are highly emissive in the microcrystalline state and the dual emission can be tuned by the aggregation states. Abstract : Silole-based derivatives were synthesized by a conventional hydrosilylation reaction of 1-methyl-2, 3, 4, 5-tetraphenyl-1 H -silole. Novel silole derivatives are highly emissive in the microcrystalline state, and their fluorescent properties show combined characteristics of the constituting units. The designed compounds demonstrate two emissive wavelengths in the solution and in the solid-state, and the dual emission is tuned by the aggregation state in the mixed solvent. The compound containing silole and pyrene units shows polymorphism-dependent solid-state emissive behavior. The crystal packing of the target compounds is influenced by the steric effects of corresponding different molecular structures.