Bis(2,6-diaminopyridin-1-ium) hexaaquacobalt(II) disulfate dihydrate

Mohammad T M Al-Dajani,Hoong-Kun Fun,Nornisah Mohamed,Jia Hao Goh,Habibah A Wahab

doi:10.1107/s1600536810026693

Mohammad T M Al-Dajani, Hoong-Kun Fun + Show 3 more

Open Access

https://doi.org/10.1107/s1600536810026693

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Abstract

In the title compound, (C5H8N3)2[Co(H2O)6](SO4)2·2H2O, the complete complex cation is generated by crystallographic inversion symmetry, such that the CoII cation is octahedrally coordinated by six water molecules. The organic cation is essentially planar, with a maximum deviation of 0.013 (1) Å. In the crystal structure, the ions and molecules are linked into a pseudo-layered three-dimensional supramolecular network via O—H⋯O and N—H⋯O hydrogen bonds. Weak intermolecular π–π interactions further stabilize the crystal structure [centroid–centroid distance = 3.5231 (4) Å].

Highlights

In the title compound, (C5H8N3)2[Co(H2O)6](SO4)22H2O, the complete complex cation is generated by crystallographic inversion symmetry, such that the CoII cation is octahedrally coordinated by six water molecules
The ions and molecules are linked into a pseudo-layered three-dimensional supramolecular network via O—H O and N—H O hydrogen bonds
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) x−1/2, −y+3/2, −z+1; (iii) x+1/2, −y+3/2, −z+1; (iv) x−1, y, z; (v) x+1/2, y, −z+3/2; (vi) −x+3/2, y+1/2, z

Summary

Bruker SMART APEXII CCD diffractometer

In the title compound, (C5H8N3)2[Co(H2O)6](SO4)22H2O, the complete complex cation is generated by crystallographic inversion symmetry, such that the CoII cation is octahedrally coordinated by six water molecules. The organic cation is essentially planar, with a maximum deviation of 0.013 (1) Å. The ions and molecules are linked into a pseudo-layered three-dimensional supramolecular network via O—H O and N—H O hydrogen bonds. Weak intermolecular – interactions further stabilize the crystal structure [centroid–centroid distance = 3.5231 (4) Å]

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NH gratefully acknowledges funding from Universiti Sains

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