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Chemcial Industry and Engineering 2021, Vol. 38 Issue (3) :10-19    DOI: 10.13353/j.issn.1004.9533.20200802
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J-Type Aggregates of a Uracil-functionalized Aza-BODIPY Dye Directed by Hydrogen Bonding
Jing Lei, Zhang Yongjie, Ren XiangKui, Chen Zhijian
School of Chemical Engineering and Technology, Tianjin University 300350, China

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Abstract J-aggregates of functional dyes represent a class of important supramolecular material that have been applied widely in various fields. A novel boron-azadipyrromethene (aza-BODIPY) dye 1 appended with uracil groups on 2,6-positions was synthesized, which could self-assemble into nanofibrous J-aggregates in methylcyclohexane driven by intermolecular double hydrogen bonds. The maximum absorption wavelength of the J-aggregates of dye 1 located at 768 nm, which was bathochromically shifted for 47 nm compared with that of the monomers. Temperature/concentration-dependent UV/Vis spectroscopy demonstrated that the formation of J-aggregates of dye 1 followed the cooperative self-assembly mechanism. The morphology and molecular packing structure of J-aggregates were studied by transmission electron microscopy and exciton theory calculation.
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Jing Lei
Zhang Yongjie
Ren XiangKui
Chen Zhijian
KeywordsJ-aggregates;   Boron-azadipyrromethene;   self-assembly;   spectroscopic properties     
Received 2020-07-22;
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Jing Lei, Zhang Yongjie, Ren XiangKui, Chen Zhijian.J-Type Aggregates of a Uracil-functionalized Aza-BODIPY Dye Directed by Hydrogen Bonding[J]  Chemcial Industry and Engineering, 2021,V38(3): 10-19
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