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Crystal structure of ammonium/potassium trans-bis(N-methyliminodiacetato-κ³O,N,O')-chromate(III) from synchrotron data.
- Source :
-
Acta Crystallographica Section E: Crystallographic Communications . Aug2016, Vol. 72 Issue 8, p1190-1193. 9p. - Publication Year :
- 2016
-
Abstract
- The structure of the title compound, [(NH4)0.8K0.2][Cr(C5H7NO4)2] (C5H7NO4 is methyliminodiacetate; mida), has been determined from synchrotron data. The CrIII atom is located on a centre of symmetry and is coordinated by two N atoms and four O atoms of two facially arranged tridentate mida ligands, displaying a slightly distorted octahedral coordination environment. The Cr-N and mean Cr-O bond lengths are 2.0792 (14) and 1.958 (14) Å, respectively. The cation site is located on a twofold rotation axis and shows occupational disorder, being occupied by ammonium and potassium cations in a 0.8:0.2 ratio. In the crystal, intermolecular hydrogen bonds involving the N-H groups of the ammonium cation as donor and the two non-coordinating O atoms of the carboxylate group as acceptor groups consolidate the three-dimensional packing. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20569890
- Volume :
- 72
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Acta Crystallographica Section E: Crystallographic Communications
- Publication Type :
- Academic Journal
- Accession number :
- 117198372
- Full Text :
- https://doi.org/10.1107/S2056989016011804