Abstract
Multi-stimuli responsive DCDHF-hydrazone molecular switch containing a hydrazone recognition moiety is developed for the naked-eye detection of alkaline analytes in both vapour and aqueous media. Mechanisms accounting for the thermochromism, pH-sensitivity and solvatochromism are proposed. DCDHF-hydrazone chromophores of different substituents introduced nanostructures with different morphologies via a re-precipitation technique. The films formulated from these nanostructures function as solid-state vapochromic sensors for probing alkaline vapours such as amines and ammonia. The sensing performance is reversible and has differential sensitivity towards a variety of amines at comparable concentrations. The structure of the hydrazone molecular switch was established spectroscopically and by single crystal X-ray crystallography.
Original language | English |
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Pages (from-to) | 102296-102305 |
Number of pages | 10 |
Journal | RSC Advances |
Volume | 6 |
Issue number | 104 |
DOIs | |
Publication status | Published - 2016 Jan 1 |
Externally published | Yes |
ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)