Diaquabis(hydrogen tartrato)copper(II) dihydrate

Mohammad T.M Al-Dajani,Madhukar Hemamalini,Hoong-Kun Fun,Hassan H Abdallah,Nornisah Mohamed

doi:10.1107/s160053681002115x

Abstract

The title complex, [Cu(C4H5O6)2(H2O)2]·2H2O, contains a CuII ion lying on an inversion centre. The coordination geometry of the CuII ion is a distorted octahedron with four O atoms from two hydrogen tartrate ions occupying the equatorial positions and two O atoms from two coordinated water molecules occupying the axial positions. In the crystal structure, intermolecular O—H⋯O and C—H⋯O hydrogen bonds link the molecules into a three-dimensional network.

Highlights

H atoms treated by a mixture of independent and constrained refinement max = 0.68 e Å3
CuII ion lying on an inversion centre
For the stability of the temperature controller used for the data collection, see: Cosier & Glazer (1986)

Summary

Bruker APEXII DUO CCD areadetector diffractometer

H atoms treated by a mixture of independent and constrained refinement max = 0.68 e Å3. R factor = 0.023; wR factor = 0.082; data-to-parameter ratio = 27.3. CuII ion lying on an inversion centre. The coordination geometry of the CuII ion is a distorted octahedron with four O atoms from two hydrogen tartrate ions occupying the equatorial positions and two O atoms from two coordinated water molecules occupying the axial positions. Intermolecular O—H O and C—H O hydrogen bonds link the molecules into a three-dimensional network. Symmetry codes: (i) x; y þ 12; z þ 12; (ii) x þ 2; y; z þ 1; (iii) x þ 1; y; z; (iv).

Related literature

HHA gratefully acknowledges funding from Universiti

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