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Synthesis, crystal Structures and aggregation-induced emission enhancement of aryl-substituted cyclopentadiene derivatives

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Indexed by:期刊论文

Date of Publication:2013-07-01

Journal:JOURNAL OF LUMINESCENCE

Included Journals:SCIE、EI

Volume:139

Page Number:28-34

ISSN No.:0022-2313

Key Words:Cyclopentadiene derivates; Aggregation-induced emission enhancement; Crystal structure; C-H center dot center dot center dot pi interactions

Abstract:A series of cyclopentadiene derivates, namely, 1,2,4-triphenylcyclopenta-1,3-diene (1), 1,2-diphenyl-4-(p-methoxyphenyl)cyclopenta-1,3-diene (2) and 1,2-di(p-methoxyphenyl)-4-phenylcyclopenta-1,3-diene (3), were synthesized and their photoluminescence properties in solutions and aggregation state were investigated. Different photoluminescence properties of 1-3 were tuned by changing types and replace position of substituent groups. These cyclopentadiene derivates display solvent-dependent fluorescence emissions and typical aggregation-induced emission enhancement (AIEE) characteristics. The crystal structure analysis reveals that intermolecular C-H center dot center dot center dot pi interactions and X-aggregation molecule stacking have a dramatic effect on the photoluminescent properties of 1-3. Additionally, the DFT calculations of these compounds were investigated. (C) 2013 Elsevier B.V. All rights reserved.

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