Abstract
The title compound, [Fe(C5H3N2O 4)2(H2O)2], is a triclinic modification of a monoclinic form recently reported by Du et al. [Acta Cryst. (2011), E67, m997]. The FeII ion lies at an inversion center and is coordinated by two N and two O atoms from two 5-carb-oxy-1H-imidazole-4-carboxyl-ate ligands in trans positions, together with two water mol-ecules, completing a slightly distorted octahedral coordination. Inter-molecular N-H⋯O hydrogen bonding between the N-H group of the imidazole ring and the deprotonated carboxyl-ate group builds a chain of 5-carb-oxy-1H-imidazole-4-carboxyl-ate anions along the [101] direction. The water molecules form intermolecular hydrogen bonds to O-C and O=C sites of the carboxylate group in adjacent layers.
Original language | English |
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Pages (from-to) | m1093-m1094 |
Journal | Acta Crystallographica Section E: Structure Reports Online |
Volume | 68 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2012 Aug |
Keywords
- R factor = 0.041
- T = 298 K
- data-to-parameter ratio = 13.7
- mean σ(C-C) = 0.004 Å
- single-crystal X-ray study
- wR factor = 0.075
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics