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RESEARCH PRODUCT
Influence of Copper(II) and Nickel(II) Ions in the Topology of Systems Based on a Flexible Bis-Oxamate and Bipyridine Building Blocks
Humberto O. StumpfCarlos B. PinheiroMiguel JulveCynthia L. M. PereiraTatiana R. G. SimõesTatiana R. G. SimõesIsabella R. A. FernandesWillian X. C. OliveiraWalace D. Do PimWalace D. Do PimFrancesc Lloretsubject
Dimethyl sulfoxideInorganic chemistrychemistry.chemical_elementGeneral ChemistryCondensed Matter PhysicsCopperMagnetic susceptibilitylaw.inventionBipyridinechemistry.chemical_compoundCrystallographyNickelchemistrylawAlkane stereochemistryMoleculeGeneral Materials ScienceCrystallizationdescription
Single crystals of the mononuclear bis-oxamate nickel(II) complex [Ni(bipy)(H2edpba)]·dmso (1) are obtained by reacting [Ni(bipy)Cl2]·H2O and the flexible K2(H2edpba) ligand [bipy = 2,2′-bipyridine; H4edpba = N,N′-2,2′-ethylenediphenylenebis(oxamic acid)]. The reaction of 1 with copper(II) ions resulted in two products in which the replacement of the nickel(II) ion by copper(II) took place: the chain compound [Cu(bipy)(H2edpba)]n·3nH2O·ndmso [dmso = dimethyl sulfoxide] (2) and the analogous chain compound without dmso crystallization molecules [Cu(bipy)(H2edpba)]n·1.5nH2O (3a) in its polycrystalline form. The reaction of [Cu(bipy)Cl2] and K2(H2edpba) yielded single crystals of [Cu(bipy)(H2edpba)]n·1.5nH2O (3b). The H2edpba2– ligand exhibits the anti conformation in 1, 2, and 3b, but it adopts different coordination modes: terminal bis-bidentate (1) and bridging bis-bidentate (2 and 3b) through the two pairs of carbonyl-oxygen atoms of the two oxamate arms. Magnetic susceptibility measurements carried out ...
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-10-06 | Crystal Growth & Design |