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Poly[[tetraaquabis(5-carboxypyridine-2-carboxylato-κ2 N, O)bis(μ4-pyridine-2,5-dicarboxylato-κ5 N, O: O: O′: O′′)dilanthanum(III)] dihydrate].
- Source :
-
Acta Crystallographica: Section E . Aug2007, Vol. 63 Issue 8, pm2069-m2070. 1p. 7 Diagrams, 6 Charts. - Publication Year :
- 2007
-
Abstract
- The title compound, {[La2(C7H4NO4)2(C7H3NO4)2(H2O)4]·2H2O} n, was prepared by a hydrothermal reaction at 433 K. The asymmetric unit contains two LaIII ions. Each LaIII ion is nine-coordinated in a slightly distorted tricapped trigonal–prismatic coordination geometry, formed by two N atoms from 5-carboxypyridine-2-carboxylate (Hpydc) and pyridine-2,5-dicarboxylate (pydc) ligands, five O atoms from carboxylate groups of one Hpydc and four pydc ligands, and two water molecules. Adjacent LaIII ions are linked together through single bridging carboxylate O atoms and carboxylate groups in a syn– anti mode, forming a two-dimensional layered polymeric structure. Extensive O—H...O hydrogen bonding connects adjacent layers into an infinite three-dimensional supramolecular network structure. The crystal studied was an inversion twin. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16005368
- Volume :
- 63
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Acta Crystallographica: Section E
- Publication Type :
- Academic Journal
- Accession number :
- 26100571
- Full Text :
- https://doi.org/10.1107/S1600536807032059