Crystal structure of poly[μ2-aqua-aqua(μ2-4-nitro-2,5,6-trioxo-1,2,5,6-tetrahydropyridin-3-olato)hemi-μ4-oxalato-barium(II)]
2015 ◽
Vol 71
(5)
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pp. 459-462
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Keyword(s):
In the title coordination polymer, [Ba(C5HN2O6)(C2O4)0.5(H2O)2]n, the tenfold coordination of the Ba centre consists of four O atoms from the two 4-nitro-2,5,6-trioxo-1,2,5,6-tetrahydropyridin-3-olate (L) anions, three O atoms of two oxalate anions and three water molecules. The Ba—O bond lengths fall in the range 2.698 (3)–2.978 (3) Å. TheLligand chelates two Ba atoms related by a screw axis, leading to formation of fused five- and six-membered chelate rings. Due to the bridging function of the ligands and water molecules, the complex monomers are connected into polymeric two-dimensional layers parallel to thebcplane. Intermolecular O—H...O hydrogen bonds link these layers into a three-dimensional supramolecular framework.
2017 ◽
Vol 73
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pp. 1599-1602
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Vol 73
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pp. 1121-1124
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2006 ◽
Vol 62
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pp. m1479-m1481
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2021 ◽
Vol 77
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pp. 744-748
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Vol 71
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pp. 374-376
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2018 ◽
Vol 74
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pp. 808-811
2014 ◽
Vol 70
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pp. 403-405
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Keyword(s):
2022 ◽
Vol 78
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2014 ◽
Vol 70
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pp. 1057-1063
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Vol 73
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pp. 1375-1378
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