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Issue 36, 2013
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1D, 2D and 3D coordination polymers of 5,5′-methylenebis(oxy)dinicotinic acid with Co(II), Mn(II), Cu(II) and Cd(II) ions

Ranjan Patra,a  Hatem M. Titia  and  Israel Goldberg*a 
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* Corresponding authors

a School of Chemistry, Sackler Faculty of Exact Sciences, Tel-Aviv University, Ramat-Aviv, Israel
E-mail: goldberg@post.tau.ac.il

Abstract

A series of new coordination polymers of the 5,5′-methylenebis(oxy)dinicotinic acid ligand with various metal ions, have been synthesized under hydro(solvo)thermal conditions and characterized by X-ray crystallography: [Co(L)(H2O)4]n (1), [Cu(L)(H2O)2]n (2), two polymorphs of [Cd(L)(H2O)]n·(DMA)n (3 and 4), [Co4(L)4(H2O)3]n·(acetonitrile)n (5), [Mn2(L)2(H2O)]n·(acetonitrile)n (6) and [Cd2(L)2(H2O)]n·(DMA)n·1½(H2O)n (7) (H2L = 5,5′-methylenebis(oxy)dinicotinic acid; DMA = dimethyl acetamide) The hybrid metal–organic polymeric assemblies reveal diverse connectivity and topological features in one-, two- and three-dimensions, depending on the number of ligation sites available on the metal centers for binding the organic ligands and the nuclearity of connecting nodes. Compounds 1–4 involve mono-nuclear metal connectors and represent 1D and 2D coordination polymers. The three-dimensional single-framework polymers in compounds 5–7 are tessellated via dinuclear coordination nodes. Solid-state variable temperature magnetic susceptibility data of 5 and 6 involving the paramagnetic Co(II) and Mn(II) ions are reported as well. They reveal week anti-ferromagnetic coupling between the proxime metal centers observed in these two complexes.

Graphical abstract: 1D, 2D and 3D coordination polymers of 5,5′-methylenebis(oxy)dinicotinic acid with Co(ii), Mn(ii), Cu(ii) and Cd(ii) ions

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Publication details

The article was received on 18 Jun 2013, accepted on 09 Jul 2013 and first published on 15 Jul 2013


Article type: Paper
DOI: 10.1039/C3CE41169A
Citation: CrystEngComm, 2013,15, 7257-7266
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    1D, 2D and 3D coordination polymers of 5,5′-methylenebis(oxy)dinicotinic acid with Co(II), Mn(II), Cu(II) and Cd(II) ions

    R. Patra, H. M. Titi and I. Goldberg, CrystEngComm, 2013, 15, 7257
    DOI: 10.1039/C3CE41169A

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