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Self‐Assembly of “Chalcone” Type Push‐Pull Dye Molecules into Organic Single Crystalline Microribbons and Rigid Microrods for Vis/NIR Range Photonic Cavity Applications
Author(s) -
Vattikunta Radhika,
Venkatakrishnarao Dasari,
Mohiddon Mahamad Ahamad,
Chandrasekar Rajadurai
Publication year - 2016
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201600756
Subject(s) - stacking , supramolecular chemistry , molecule , fluorescence , photochemistry , intermolecular force , materials science , acceptor , crystallography , self assembly , chemistry , nanotechnology , optics , organic chemistry , physics , condensed matter physics
A novel supramolecular fluorescent donor–acceptor type dye molecule, (2 E ,4 E )‐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.