Kumar, Amit ; Pandey, Rampal ; Gupta, Rakesh Kumar ; Pandey, Daya Shankar (2013) Fluorescent azophenol-quinazoline dyad as multichannel reversible pH indicator in aqueous media: an innovative concept on diazo based dyads Tetrahedron Letters, 54 (46). pp. 6164-6167. ISSN 0040-4039
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.tetlet.2013.08.103
Abstract
A novel azophenol-quinazoline dyad 1 has been designed, synthesized and demonstrated as an efficient reversible multichannel pH indicator through distinct signalling in aqueous media. Owing to the competence between highly fluorescent quinazoline moiety and a well known fluorescence quencher diazo group, dyad 1 is moderately fluorescent in nature. Under acidic conditions 1 displays diverse fluorogenic changes (blue emission at pH 4.25; green at pH 1.80) while under basic condition (pH 11.80) chromogenic changes were observed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | New Concept; Critical pH Point; Azophenol-Quinazoline Dyad; Reversible pH Indicator; Multichannel Signalling |
| ID Code: | 103897 |
| Deposited On: | 21 Apr 2017 06:20 |
| Last Modified: | 21 Apr 2017 06:20 |
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