1. A Novel DR/NIR T-Shaped AIEgen: Synthesis and X-Ray Crystal Structure Study
- Author
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Gelsomina Bakayoko, Barbara Panunzi, Ugo Caruso, Luigi Di Costanzo, Rosita Diana, Diana, R., Caruso, U., Di Costanzo, L., Bakayoko, G., and Panunzi, B.
- Subjects
Photoluminescence ,Materials science ,General Chemical Engineering ,DR/NIR ,Quantum yield ,02 engineering and technology ,Crystal structure ,Conjugated system ,010402 general chemistry ,01 natural sciences ,law.invention ,Inorganic Chemistry ,law ,lcsh:QD901-999 ,Molecule ,General Materials Science ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Fluorescence ,Synchrotron ,0104 chemical sciences ,Crystallography ,Intramolecular force ,T-shaped ,lcsh:Crystallography ,fluorescence ,AIEgen ,0210 nano-technology - Abstract
We developed a new benzodifuran derivative as the condensation product between 2,6-diamino-4-(4-nitrophenyl)benzo[1,2-b:4,5-b&rsquo, ]difuran-3,7-dicarboxylate and 3-hydroxy-2-naphthaldehyde. The intramolecular hydrogen-bond interactions in the terminal half-salen moieties produce a sterically encumbered highly conjugated main plane and a D-A-D (donor-acceptor-donor) T-shaped structure. The novel AIEgen (aggregation-induced enhanced emission generator) fulfils the requirement of RIR (restriction of intramolecular rotation) molecules. DR/NIR (deep red/near infrared) emission was recorded in solution and in the solid state, with a noteworthy photoluminescence quantum yield recorded on the neat crystals which undergo some mechanochromism. The crystal structure study of the probe from data collected at a synchrotron X-ray source shows a main aromatic plane &pi, stacked in a columnar arrangement.
- Published
- 2020
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