A novel three-dimensional heterometallic coordination polymer: poly[[diaquadi-mu(3)-chlorido-mu(2)-chlorido-tri-mu(3)-nicotinato-tricop per(I)gadolinium(III)] hemihydrate]

作者：Wu, Shuhong^*

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2011, 67(6): M211-M214.

DOI：10.1107/S010827011101732X

• TRANSITION-METAL FRAMEWORKS
• CRYSTAL-STRUCTURE
• MAGNETIC-PROPERTIES
• LANTHANIDE
• CLUSTERS
• LIGANDS
• COMPLEXES
• DIVERSITY
• NETWORKS
• HALIDES

In the title polymeric heterometallic compound, {[Cu3Gd-(C6H4NO2)(3)Cl-3(H2O)(2)]center dot 0.5H(2)O}(n), comprising copper(I) and gadolinium(III) cations bridged by nicotinate (nic) ligands and chloride anions, the Gd-III centers display a bicapped trigonal prismatic geometry, defined by six carboxylate O atoms and two water molecules. For copper(I), one Cu center is three-coordinated by three chloride ions and displays a trigonal-planar geometry; the other two Cu centers are four-coordinated and display a very distorted tetrahedral geometry. The chloride anions act in mu(2)- and mu(3)-bridging modes, linking the Cu (I) ions into an infinite chain. The nic ligand exhibits a tridentate coordination mode, with the carboxylate O atoms linking to two Gd-III ions and the N atom linking to one Cu (I) ion. Thus, a novel three-dimensional heterometallic coordination polymer is constructed from Gd-carboxylate subunits and Cu-Cl chains. In addition, intra-and intermolecular OH center dot center dot center dot O and O-H center dot center dot center dot Cl hydrogen bonds are also observed within the three-dimensional structure. Topologically, the framework represents an unusual 3,6-connected (4.8(2))(3)(4(10).6(5)) net.

• 出版日期2011-6
• 单位北京林业大学