Sreenivasu Mummidivarapu, V. V. ; Tabbasum, Khatija ; Chinta, Jugun Prakash ; Rao, Chebrolu P. (2012) 1,3-Di-amidoquinoline conjugate of calix[4]arene (L) as a ratiometric and colorimetric sensor for Zn2+: spectroscopy, microscopy and computational studies Dalton Transactions, 41 (6). pp. 1671-1674. ISSN 0300-9246
Full text not available from this repository.
Official URL: http://pubs.rsc.org/en/Content/ArticleLanding/2012...
Related URL: http://dx.doi.org/10.1039/C2DT11900E
Abstract
Carboxamidoquinoline appended calix[4]arene-1,3-di-conjugate (L) has been synthesized and characterized and its single crystal XRD structure has been established. L has been shown to act as selective ratiometric turn-on fluorescence sensor for Zn2+ up to a lowest concentration of 183 ± 18 ppb (2.82 μM) with a nine-fold enhancement by exhibiting blue-green emission. The coordination features of the species of recognition have been computationally evaluated by DFT methods and found to have distorted tetrahedral Zn2+ center in an N4 core. The spherical nano-structural features observed for L in TEM are being transformed into the Koosh nano-flower like structure when complexed with Zn2+ and hence these two can be easily differentiated. Even the features observed in AFM can distinctly differentiate L from its Zn2+ complex.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Royal Society of Chemistry. |
| ID Code: | 79214 |
| Deposited On: | 24 Jan 2012 15:37 |
| Last Modified: | 19 Apr 2012 06:46 |
Repository Staff Only: item control page
