2,7-Diferrocenyl-3,6-diazaocta-2,6-diene: A highly selective dual fluorescent sensor for Zn<sup>2+ </sup>and Ag<sup>+ </sup>and electrochemical sensor for Zn<sup>2+</sup>
IR@NISCAIR: CSIR-NISCAIR, New Delhi - ONLINE PERIODICALS REPOSITORY (NOPR)
View Archive Info| Field | Value | |
| Creator |
Dutta, Kaku
Das, Diganta Kumar |
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| Date |
2012-06-05T11:50:59Z
2012-06-05T11:50:59Z 2012-06 |
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| Identifier |
0975-0975(Online); 0376-4710(Print)
http://hdl.handle.net/123456789/14227 |
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| Description |
816-820
2,7-Diferrocenyl-3,6-diazaocta-2,6-diene (DFDD), obtained by condensation reaction of acetylferrocene and ethylenediamine, exhibits Zn<sup>2+</sup> ion-induced enhancement of fluorescence intensity and Ag<sup>+</sup> ion-induced quenching of fluorescence intensity. The Zn<sup>2+</sup> ion shifts the redox potential of DFDD from +0.660 V ± 0.005 V to + 0.615 ± 0.005 V as observed by cyclic voltammetry and square wave voltammetry. Ca<sup>2+</sup>, Mg<sup>2+</sup>, Mn<sup>2+</sup>, Fe<sup>2+</sup>, Co<sup>2+</sup>, Ni<sup>2+</sup>, Cu<sup>2+</sup>, Cd<sup>2+</sup>, Pb<sup>2+</sup> and Hg<sup>2+</sup> have very little effect on fluorescence intensity of DFDD. These metal ions together with Ag<sup>+</sup> ion have no effect on the electrochemistry of DFDD. Both, fluorescence and UV-visible spectroscopic data show a 1:1 interaction between DFDD and Zn<sup>2+</sup> with binding constant 75 <i style="">M</i><i style=""><sup> </sup></i><sup>-1</sup>. The applicability of DFDD as fluorescence sensor for Zn<sup>2+</sup> ion has been shown in its estimation in commercial tablets. |
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| Language |
en_US
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| Publisher |
NISCAIR-CSIR, India
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| Rights |
<img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
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| Source |
IJC-A Vol.51A(06) [June 2012]
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| Subject |
Sensors
Electrochemical sensors Fluorescent sensors Fluorescence Cyclic voltammetry Square wave voltammetry Zinc Silver |
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| Title |
2,7-Diferrocenyl-3,6-diazaocta-2,6-diene: A highly selective dual fluorescent sensor for Zn<sup>2+ </sup>and Ag<sup>+ </sup>and electrochemical sensor for Zn<sup>2+</sup>
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| Type |
Article
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