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Effect of water on the supramolecular assembly and functionality of naphthalimide derivative: tunable honeycomb structure with mechano-chromic properties

Abstract

Understanding the synergistic effect of organic systems and water molecules represents a growing research in the field of designing functional supramolecular architectures. Herein, a novel kind of symmetric organogelator NDS containing diacetylene and naphthalimide units was designed and characterized. NDS could self-assembly to large scale, ordered honeycomb-patterned structure with micron pores by evaporation method. Interestingly, the micron pores of the honeycomb films could be changed to nano pores upon the addition of water via spontaneous water-templated process by the formation of gel emulsions. Moreover, water effect on the dye aggregates, mechanical and optical properties were also studied by several experiments. It was deduced that water could weaken the intermolecular interaction of NDS and enhanced the degree of J aggregation of naphthalimide fluorophores, thus resulting in thixotropic gel emulsions with large scale patterned honeycomb structures. The corresponding xerogels with honeycomb structures were very sensitive to gentle grinding, with obvious emission color changes from red to yellow, showing grinding chromism property.

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Publication details

The article was received on 29 Mar 2017, accepted on 13 May 2017 and first published on 15 May 2017


Article type: Paper
DOI: 10.1039/C7TC01331K
Citation: J. Mater. Chem. C, 2017, Accepted Manuscript
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    Effect of water on the supramolecular assembly and functionality of naphthalimide derivative: tunable honeycomb structure with mechano-chromic properties

    X. Yu, D. Xie, H. Lan, Y. Li, X. Zhen, J. Ren and T. Yi, J. Mater. Chem. C, 2017, Accepted Manuscript , DOI: 10.1039/C7TC01331K

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