These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: A novel three-dimensional heterometallic coordination polymer: poly[[diaquadi-μ3-chlorido-μ2-chlorido-tri-μ3-nicotinato-tricopper(I)gadolinium(III)] hemihydrate].
    Author: Wu S.
    Journal: Acta Crystallogr C; 2011 Jun; 67(Pt 6):m211-4. PubMed ID: 21633157.
    Abstract:
    In the title polymeric heterometallic compound, {[Cu(3)Gd(C(6)H(4)NO(2))(3)Cl(3)(H(2)O)(2)]·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 μ(2)- and μ(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 O-H···O and O-H···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.
    [Abstract] [Full Text] [Related] [New Search]