1. Selective anion-responsive organogel based on a gelator containing hydrazide and azobenzene units.
- Author
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Bai, Binglian, Mao, Xiyue, Wei, Jue, Wei, Zhenhua, Wang, Haitao, and Li, Min
- Subjects
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HYDRAZIDES , *AZOBENZENE , *FOURIER transform infrared spectroscopy , *HYDROGEN bonding , *METALLURGICAL segregation , *SOL-gel processes , *INTERMOLECULAR interactions , *CLUSTERING of particles - Abstract
An organogelator named N-4-dodecyloxyphenyl-N′-4-((4-nitrophenyl)azophenyl) benzohydrazide ( 1 ) was synthesized and was tested to gel aromatic solvent giving stable gels. SEM images revealed that the xerogels consisted of fibers, within which molecules self-assembled to a layered structure, while fibers entangled to 3D network. Both UV–vis spectra and FT-IR studies showed that the major driving force for the formation of fibers was the intermolecular hydrogen bondings, π–π interactions and the microphase segregation between the rigid-rod core and the flexible chains. The gels exhibited gel–sol transition and color change upon addition of anion (F − and AcO − ) stimuli. [ABSTRACT FROM AUTHOR]
- Published
- 2015
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