Jump to main content
Jump to site search


A 1,8-naphthalimide–pyridoxal conjugate as a supramolecular gelator for colorimetric read out of F ions in solution, gel and solid states

Author affiliations

Abstract

A naphthalimide–pyridoxal conjugate 1 has been designed and synthesized. Compound 1 forms a stable greenish yellow colored gel in DMSO : H2O (8 : 1 v/v). Rheological study reveals that the gel is mechanically strong (G′> G′′) over a wide range of applied strains. The morphology of the gel as determined by FESEM shows a highly cross-linked fibrous network. The gel is anion-responsive and is selectively transformed into a sol with a color change from greenish yellow to deep blue only in the presence of F among other anions. In CH3CN, compound 1 was also sensitive to basic anions such as F and AcO ions. In solution, F was differentiated from AcO through a color change. While the yellow colored solution of 1 in acetonitrile was changed into deep blue in the presence of F, AcO ions gave a faint blue coloration. A similar colorimetric differentiation of F from AcO has been possible in CH3CN by a reusable Schiff base-linked Merrifield resin 1a or 1b.

Graphical abstract: A 1,8-naphthalimide–pyridoxal conjugate as a supramolecular gelator for colorimetric read out of F− ions in solution, gel and solid states

Back to tab navigation

Supplementary files

Publication details

The article was received on 06 Nov 2018, accepted on 08 Jan 2019 and first published on 08 Jan 2019


Article type: Paper
DOI: 10.1039/C8NJ05626A
Citation: New J. Chem., 2019, Advance Article
  •   Request permissions

    A 1,8-naphthalimide–pyridoxal conjugate as a supramolecular gelator for colorimetric read out of F ions in solution, gel and solid states

    C. Pati and K. Ghosh, New J. Chem., 2019, Advance Article , DOI: 10.1039/C8NJ05626A

Search articles by author

Spotlight

Advertisements