Syntheses and characterization of some new mixed-ligand lead(II) complexes, Pb(en)(Ch3COO)X (X = NCS-, C1O-4 or NO-3); crystal structure of [Pb(en)(CH3COO)(NO3)]n (en = ETHANE-1,2-DIAMINE)

被引：16

作者：

Morsali, A ^{[1
]}

Abedini, J

机构：

[1] Tarbiat Modares Univ, Sch Sci, Dept Chem, Tehran, Iran

[2] Peyame Noor Univ, Abhar Ctr, Dept Chem, Zanjan, Iran

来源：

JOURNAL OF COORDINATION CHEMISTRY | 2004年 / 57卷 / 17-18期

关键词：

lead; crystal structure; mixed-anion complexes; lone pair activity;

D O I：

10.1080/00958970412331312642

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Lead(II) complexes with ethane- 1,2-diamine (en) containing two different anions, [Pb(en)(CH3COO)X] (X=NCS-, ClO4- or NO3-, have been synthesized and characterized by CHN elemental analysis, IR, H-1 NMR, C-13 NMR and Ph-207 NMR spectroscopy. Single crystal X-ray data for [Pb(en)(NO3)(CH3COO)] show the complex to be polymeric. The Pb atom has an unsymmetrical five-coordinate geometry and the weak interaction of lead(II) with oxygen atoms of adjacent molecule produces polymeric units in the solid state. The en ligand and counter ions in this complex exhibit a coordination gap around the Pb(II) ion, occupied possibly by a stereoactive lone pair of electrons on lead(II), that may be affected by intermolecular hydrogen bonding.

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页码：1629 / 1636

页数：8

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