TITLE:
Fluoride-Responsive Organogel Based on Hydrazide Derivatives
AUTHORS:
Guanghui Lv, Lirong Lin, Xinyang Chen, Chaoran Chen, Lei Huang, Hong Xin
KEYWORDS:
Organogel, Hydrazine Derivatives, Fluoride Response, Hydrogen Bonding
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.8 No.12,
December
21,
2020
ABSTRACT:
An organogelator named N-[3-(hydroxy)-4-(dodecyloxy)-benzoyl]-N’ (4’-nitro-benzoyl) hydrazide (D12) was synthesized. It could form stable gels in some of the tested organic solvent. SEM images revealed that the molecules self- assembled into fibrous aggregates in the xerogels. The X-ray diffraction analysis showed that the xerogel exhibited a layered structure. FT-IR studies confirmed that intermolecular hydrogen bonding between C=O and N-H groups was the major driving force for gelation of organic solvents. The gel exhibited gel-sol transition and color change upon addition of F-. An extended conjugated system formed through the phenyl group and a five-membered ring based on intramolecular hydro-gen bonding between the oxygen atom near the deprotonation nitrogen atom and the other NH, which is responsible for the dramatic color change upon addition of F-.