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Phosphorus, Sulfur, and Silicon and the Related Elements Volume 182, 2007 - Issue 9
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Original Articles

Modified BINOL Podands: Synthesis of Dinaphthosulfide Podands and Their Application in Spectrophotometric Determination of Toxic Metals

Abbas Shockravi Faculty of Chemistry, Tarbiat Moallem University, Tehran, Iran
,
Marzieh Chaloosi Faculty of Chemistry, Tarbiat Moallem University, Tehran, Iran
,
Esmael Rostami Faculty of Chemistry, Tarbiat Moallem University, Tehran, Iran
,
Davood Heidaryan Faculty of Chemistry, Tarbiat Moallem University, Tehran, Iran
,
Ali Shirzadmehr Faculty of Chemistry, Tarbiat Moallem University, Tehran, Iran
,
Hanif Fattahi Faculty of Chemistry, Tarbiat Moallem University, Tehran, Iran
&
Hamid Khoshsafar Faculty of Chemistry, Tarbiat Moallem University, Tehran, Iran
 show all
Pages 2115-2123 | Received 17 Jan 2007, Accepted 12 Mar 2007, Published online: 16 Jul 2007
 
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Abstract

New dinaphthosulfide podands [3(a, b, and c)] were synthesized. The structures of these compounds were confirmed by IR, 1H NMR, 13C NMR, and Mass spectra. A simple, efficient, and sensitive procedure is described for the spectrophotometric determination of a trace amount of Ag+, Hg2+, Cr3+, Pb2+, and Ni2+ cations in the presence of Mn2+, Co2+, Cd2+ cations using the podand (3a). Formation constants of 1:1 complexes were determined from the absorbance-mole ratio data and found to vary in the order Pb2+ > Ni2+ > Hg2+ > Cr3+ > Ag+.

Acknowledgments

We wish to thank and appreciate the Ministry of Science, Research, and Technology of Islamic Republic of Iran (nano section), and also the Ministry of Research at Tarbiat Moallem University in Tehran for their financial support.

Notes

*L: Ligand.

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