Crystal structure of silver [(propane-1,3-diyl-dinitrilo-κ 2 N , N ')-tetra-acetato-κ 4 O , O ', O '', O ''']chromate(III) from synchrotron X-ray data

• Published in: Acta crystallographica. Section E, Crystallographic communications Vol. 74; no. Pt 3; pp. 278 - 281
• Main Authors: Moon, Dohyun, Ryoo, Keon Sang, Choi, Jong-Ha
• Format: Journal Article
• Language: English
• Published: England International Union of Crystallography 01.03.2018
• Subjects: chromate(III) complex; crystal structure; propane-1,3-diyldinitrilotetraacetate; Research Communications; silver cation; twist-boat conformer; crystal structure; propane-1,3-diyldi­nitrilo­tetra­acetate; twist-boat conformer; chro­mate(III) complex; silver cation
• ISSN: 2056-9890; 2056-9890
• DOI: 10.1107/S2056989018001743

The asymmetric unit of the title compound, Ag[Cr(C H N O )]·3H O, contains one [Cr(1,3-pdta)] anion [1,3-pdta is (propane-1,3-diyldi-nitrilo)-tetra-acetate], one Ag cation and three water mol-ecules. The Cr ion is coordinated to the four O and two N atoms of the 1,3-pdta ligand, displaying a distorted octa-hedral geometry. The mean Cr-N and Cr-O bond lengths are 2.0727 (17) and 1.9608 (15) Å, respectively. The conformations of the chelate rings were found to be envelope for the glycinates and twist-boat for the six-membered di-amine ( ) ring. The Ag cation is surrounded by six O atoms from three non-coordinated carbonyl O atoms of neighbouring 1,3-pdta groups and three water mol-ecules. The crystal structure is stabilized by inter-molecular hydrogen bonding involving the water O-H group as donor and the carboxyl O atom as acceptor.