Dehydroabietylamine-decorated imino-phenols: supramolecular gelation and gel phase selective detection of Fe³⁺, Cu²⁺ and Hg²⁺ ions under different experimental conditions

Abstract

Dehydroabietylamine-linked Schiff bases 1-3 have been synthesized, characterized and deployed in metal ion sensing in sol-gel medium. The compounds show propensity to the gel formation in aqueous organic solvents and...

Cyanide Recognition and Phase‐Selective Removal of Toxic Cationic Dyes from Water Using a New Naphthalimide‐coupled Poly (aryl ether) Gelator

“…While in DMSO, DMF and CH 3 CN, compound 1 showed a band at ∼450 nm, it exhibited a different spectral behaviour in CHCl 3 , THF and other solvents. This is due to the role of DMF and DMSO which encourages partial ionization of phenolic −OH and this finding is similar to our previous observation [16] . The ionization made the DMSO and DMF solutions pink in colour.…”

“…While the poly aryl ether segment in the design can influence aggregation, naphthalimide, due to its broad, flat aromatic structure, may participate in π‐π stacking interactions, allowing solvents to be trapped within the ordered structure [12a,16] . Moreover, naphthalimide shows tunable fluorescence emission for which the monitoring of aggregation and sensing of analytes can easily be done.…”

“…This is due to the role of DMF and DMSO which encourages partial ionization of phenolic À OH and this finding is similar to our previous observation. [16] The ionization made the DMSO and DMF solutions pink in colour. The colour intensity was strong in DMSO (Figure 6Sb).…”

A new pyridoxal-derived gelator for selective recognition of CN− and F− under different conditions

“…This is similar to our earlier report. 36 However, in CH 3 CN, THF, DMF, and CH 3 OH no distinct change in absorbance was noted at 395 nm except in CHCl 3 . In CHCl 3 , the absorbance at ∼400 nm underwent a red shi to 440 nm and the solution became light brown.…”

Recent Developments in Stimuli Responsive Smart Materials and Applications: An Overview

“…Trade-off limits in polymeric membranes severely limit the implementation of intelligent membranes with porous structure and manipulability. In recent years, two-dimensional (2D) materials have inspired the development of 2D metal alloys smart membranes (2DSMs) capable of intelligent control under varied inputs [7,8]. It is possible to create 2DSMs with numerous functional groups to vary their characteristics and produce adjustable interlayer spacings under varied external circumstances by modifying them through chemical modification.…”