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 |
|---|---|
| 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 |
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ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
Cite this
Solvatochromic, thermochromic and pH-sensory DCDHF-hydrazone molecular switch : Response to alkaline analytes. / Khattab, Tawfik A.; Tiu, Brylee David B.; Adas, Sonya; Bunge, Scott D.; Advincula, Rigoberto C.
In: RSC Advances, Vol. 6, No. 104, 01.01.2016, p. 102296-102305.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Solvatochromic, thermochromic and pH-sensory DCDHF-hydrazone molecular switch
T2 - Response to alkaline analytes
AU - Khattab, Tawfik A.
AU - Tiu, Brylee David B.
AU - Adas, Sonya
AU - Bunge, Scott D.
AU - Advincula, Rigoberto C.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84994052370&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84994052370&partnerID=8YFLogxK
U2 - 10.1039/c6ra24113a
DO - 10.1039/c6ra24113a
M3 - Article
AN - SCOPUS:84994052370
VL - 6
SP - 102296
EP - 102305
JO - RSC Advances
JF - RSC Advances
SN - 2046-2069
IS - 104
ER -