9 research outputs found
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>
No full text816-8202,7-Diferrocenyl-3,6-diazaocta-2,6-diene
(DFDD), obtained by condensation reaction of acetylferrocene and
ethylenediamine, exhibits Zn2+ ion-induced enhancement of
fluorescence intensity and Ag+
ion-induced quenching of fluorescence intensity. The Zn2+ 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. Ca2+,
Mg2+, Mn2+, Fe2+, Co2+, Ni2+,
Cu2+, Cd2+, Pb2+ and Hg2+ have very
little effect on fluorescence intensity of DFDD. These metal ions together with
Ag+ ion have no effect on the electrochemistry of DFDD. Both,
fluorescence and UV-visible spectroscopic data show a 1:1 interaction between DFDD
and Zn2+ with binding constant 75 M -1. The
applicability of DFDD as fluorescence sensor for Zn2+ ion has been
shown in its estimation in commercial tablets
Copper(ii)-mediated resolution of α-halo carboxylic acids with chiral O,OâČ-dibenzoyltartaric acid: spontaneous racemization and crystallization-induced dynamic resolution
No full textProcessing and characterization of super strong and wear resistant Alâ5Cu-(0-20âŻvol%)ZrB2 composites
No full textEvaluation of a novel reconstituted bone xenograft using processed bovine cancellous bone in combination with purified bovine bone morphogenetic protein
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Characterization of Amorphized Zeolite A by Combining High-Energy X-ray Diffraction and High-Resolution Transmission Electron Microscopy
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