Self‐Assembly of “Chalcone” Type Push‐Pull Dye Molecules into Organic Single Crystalline Microribbons and Rigid Microrods for Vis/NIR Range Photonic Cavity Applications |
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| Authors: | Radhika Vattikunta Dasari Venkatakrishnarao Prof. Dr. Mahamad Ahamad Mohiddon Prof. Dr. Rajadurai Chandrasekar |
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| Affiliation: | 1. Functional Molecular Nano/Micro Solids Laboratory, School of Chemistry, University of Hyderabad, Gachibowli, Hyderabad, India;2. Department of Science and Humanities, National Institute of Technology, Tadepalligudem, Andhra Pradesh, India |
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| Abstract: | A novel supramolecular fluorescent donor–acceptor type dye molecule, (2E,4E)‐1‐(2‐hydroxyphenyl)‐5‐(pyren‐1‐yl)penta‐2,4‐dien‐1‐one (HPPD) self‐assembles in a mixture of ethanol/chloroform through intermolecular π–π stacking (distance ca. 3.384 Å) to form J‐aggregated single‐crystalline microribbons displaying Fabry–Pèrot (F‐P) type visible‐range optical resonance. The corresponding borondifluoride dye (HPPD‐BF), with a reduced HOMO–LUMO gap, self‐assembles into crystalline microrods acting as an F‐P type resonator in the near‐infrared (NIR) range. |
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| Keywords: | crystal engineering crystal growth donor– acceptor systems self-assembly nanostructures |
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