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Original Articles

New mixed-anion 2-aminomethylpyridine (AMP) lead(II) complexes, Pb(AMP)n(ClO4)X, (X=CH3COO and n=1 or X= and n=2); crystal and molecular structure of [Pb(AMP)2](ClO4)(NO3)

, , &
Pages 1233-1239 | Received 27 Sep 2004, Accepted 08 Apr 2005, Published online: 25 Jan 2007
 

Abstract

Lead(II) complexes with 2-aminomethylpyridine (AMP) containing two different anions, Pb(AMP) n (ClO4)X (X = CH3COO and n = 1 or X = 

and n = 2), have been synthesized using a direct synthetic method and characterized by elemental analysis, IR, 1H and 13C NMR spectroscopy. The structure of [Pb(AMP)2](ClO4)(NO3) was confirmed by X-ray crystallography; single-crystal X-ray data show the complex to be monomeric. The Pb atom has an unsymmetrical four-coordinate geometry, being coordinated by four nitrogen atoms of the two “AMP” ligands. The arrangement of the “AMP” ligands exhibits a coordination gap around the Pb(II) ion, possibly occupied by a stereoactive lone pair of electrons on lead(II), and the coordination around the lead atoms is hemidirected.

Acknowledgements

Financial support for this investigation by Tarbiat Modarres University, Islamic Azad University of Zanjan, Iran and the Fonds der Chemischen Industrie is gratefully acknowledged.

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