Aqua{2-(pyridin-2-yl)-N-[(pyridin-2-yl)methylidene]ethanamine-κ3N,N′,N′′}(sulfato-κ2O,O′)copper(II) tetrahydrate

Daniel Tinguiano,Mouhamadou Moustapha Sow,Farba Bouyagui Tamboura,Aliou Hamady Barry,Mohamed Gaye

doi:10.1107/s1600536812049380

Abstract

The title complex, [Cu(SO4)(C13H13N3)(H2O)]·4H2O, was obtained by mixing copper sulfate pentahydrate and 2-(pyridin-2-yl)-N-(pyridin-2-ylmethylidene)ethanamine in ethanol under reflux conditions. The CuII ion shows a Jahn–Teller-distorted octahedral geometry, with equatorial positions occupied by three N atoms from the tridentate ligand (average Cu—N = 2.004 Å) and one O atom from a bidentate sulfate anion [Cu—O = 1.963 (2) Å]. The axial positions are occupied by one O atom from a coordinating water molecule [Cu—O = 2.230 (3) Å] and one weakly bonded O atom [Cu—O = 2.750 (2) Å] from the bidentate sulfate ion. The complex molecules are connected through O—H⋯O hydrogen bonds between the coordinating water molecules and sulfate ions from neighboring complexes, forming a double chain parallel to the c axis. The chains are stabilized through additional hydrogen bonds by one of the non-coordinating water molecules bridging between neighboring strands of the double chains. The remaining three water molecules fill the interstitial space between the double chains and are involved in an intricate hydrogen-bonding network that consolidates the structure.

Highlights

The title complex, [Cu(SO4)(C13H13N3)(H2O)]4H2O, was obtained by mixing copper sulfate pentahydrate and 2(pyridin-2-yl)-N-(pyridin-2-ylmethylidene)ethanamine in ethanol under reflux conditions
The CuII ion shows a Jahn–Tellerdistorted octahedral geometry, with equatorial positions occupied by three N atoms from the tridentate ligand
The axial positions are occupied by one O atom from a coordinating water molecule [Cu—O =

Summary

Structure Reports

The title complex, [Cu(SO4)(C13H13N3)(H2O)]4H2O, was obtained by mixing copper sulfate pentahydrate and 2(pyridin-2-yl)-N-(pyridin-2-ylmethylidene)ethanamine in ethanol under reflux conditions. Cu—N = 2.004 Å) and one O atom from a bidentate sulfate anion [Cu—O = 1.963 (2) Å]. The axial positions are occupied by one O atom from a coordinating water molecule [Cu—O =. The complex molecules are connected through O—H O hydrogen bonds between the coordinating water molecules and sulfate ions from neighboring complexes, forming a double chain parallel to the c axis. The chains are stabilized through additional hydrogen bonds by one of the non-coordinating water molecules bridging between neighboring strands of the double chains. The remaining three water molecules fill the interstitial space between the double chains and are involved in an intricate hydrogen-bonding network that consolidates the structure

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Data collection

Barry and Mohamed Gaye

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