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In the title compound, {[Co(C10H8O6)(C16H20N4)(H2O)2]·5H2O}n, octahedrally coordinated CoII ions on crystallographic inversion centres are bound by trans O atoms belonging to two hydroquinone-O,O′-diacetate (hqda) anions {systematic name: 2,2′-[(1,4-phenylene)bis(oxy)]diacetate}, two trans-pyridine N-donor atoms from two bis(pyridin-4-ylmethyl)piperazine (4-bpmp) ligands, and two trans aqua ligands. The exobidentate hqda and 4-bpmp ligands form [Co(hqda)(4-bpmp)(H2O)2]n coordination polymer layers parallel to (110) that are anchored into the full crystal structure by O—H
O hydrogen bonding between aqua ligands and ligated hqda O atoms. Disordered water molecules of crystallization occupy incipient channels along [100]. However, these could not modeled reliably and so they were treated with SQUEEZE in PLATON [Spek (2009). Acta Cryst. D65, 148–155]; the crystal data take the presence of these molecules into account. The crystal under investigation was twinned by non-merohedry, the twin fraction of the components being 53.3% and 46.7%. Only data from the major twin component were used in the refinement.
O hydrogen bonding between aqua ligands and ligated hqda O atoms. Disordered water molecules of crystallization occupy incipient channels along [100]. However, these could not modeled reliably and so they were treated with SQUEEZE in PLATON [Spek (2009). Acta Cryst. D65, 148–155]; the crystal data take the presence of these molecules into account. The crystal under investigation was twinned by non-merohedry, the twin fraction of the components being 53.3% and 46.7%. Only data from the major twin component were used in the refinement.research communicationsOpen access
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In the co-crystal of isophthalic acid and [propane-1,3-diylbis(piperidine-4,1-diyl)]bis[(pyridin-4-yl)methanone], molecules are connected into supramolecular chains aligned along the c axis by O—HN hydrogen bonding. These aggregate into supramolecular layers oriented parallel to the ac plane by C—HO interactions.
N hydrogen bonding. These aggregate into supramolecular layers oriented parallel to the ac plane by C—HO interactions.data reportsOpen access
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In the title co-crystal, C25H32N4O2·C14H10O5, molecules are connected into supramolecular chains aligned along [102] by O—HN hydrogen bonding. These aggregate into supramolecular layers oriented parallel to (20-1) by C—HO interactions. These layers then stack in an ABAB pattern along the c crystal direction to give the full three-dimensional crystal structure. The central chain in the dipyridylamide has an anti–anti conformation. The dihedral angle between the aromatic ring planes is 29.96 (3)°. Disorder is noted in some of the residues in the structure and this is manifested in two coplanar dispositions of one statistically disordered carboxylic acid group.
N hydrogen bonding. These aggregate into supramolecular layers oriented parallel to (20-1) by C—HO interactions. These layers then stack in an ABAB pattern along the c crystal direction to give the full three-dimensional crystal structure. The central chain in the dipyridylamide has an anti–anti conformation. The dihedral angle between the aromatic ring planes is 29.96 (3)°. Disorder is noted in some of the residues in the structure and this is manifested in two coplanar dispositions of one statistically disordered carboxylic acid group.
