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Multistimuli-Responsive Luminescence of Naphthalazine Based on Aggregation-Induced Emission.

ABSTRACT: Stimuli-responsive luminescent materials, which are dependent on changes in physical molecular packing modes, have attracted more and more interest over the past ten years. In this study, 2,2-dihydroxy-1,1-naphthalazine was synthesized and shown to exhibit different fluorescence emission in solution and solid states with characteristic aggregation-induced emission (AIE) properties. A remarkable change in the fluorescence of 2,2-dihydroxy-1,1-naphthalazine occurred upon mechanical grinding, heating, or exposure to solvents. According to the characterization by solid-state fluorescence spectroscopy, X-ray crystallography, differential scanning calorimetry, and X-ray powder diffraction, the fluorescence change could be attributed to transitions between two structurally different polymorphs. These significant properties could also give 2,2-dihydroxy-1,1-naphthalazine more potential applications as a multifunctional material.

SUBMITTER: Yao X

PROVIDER: S-EPMC4603409 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature

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Multistimuli-Responsive Luminescence of Naphthalazine Based on Aggregation-Induced Emission.

Yao Xiang X Ru Jia-Xi JX Xu Cong C Liu Ya-Ming YM Dou Wei W Tang Xiao-Liang XL Zhang Guo-Lin GL Liu Wei-Sheng WS

ChemistryOpen 20150413 4

Stimuli-responsive luminescent materials, which are dependent on changes in physical molecular packing modes, have attracted more and more interest over the past ten years. In this study, 2,2-dihydroxy-1,1-naphthalazine was synthesized and shown to exhibit different fluorescence emission in solution and solid states with characteristic aggregation-induced emission (AIE) properties. A remarkable change in the fluorescence of 2,2-dihydroxy-1,1-naphthalazine occurred upon mechanical grinding, heati ...[more]

PMID: 26478843

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