Acta Crystallographica Section C

Crystal Structure Communications

Volume 69, Part 12 (December 2013)

metal-organic compounds

Acta Cryst. (2013). C69, 1494-1497    [ doi:10.1107/S0108270113031181 ]

Calcium and strontium salts of (glycinato-[kappa]2N,O)oxidobis(peroxido-[kappa]2O,O')vanadate(V) tetra­hydrate

T. Higuchi, A. Uchida and M. Hashimoto

Abstract: The title salts calcium (glycinato-[kappa]2N,O)oxidobis(peroxido-[kappa]2O,O')vanadate(V) tetra­hydrate, Ca[VO(O2)2(NH2CH2COO)]·4H2O, and strontium (glycinato-[kappa]2N,O)oxidobis(peroxido-[kappa]2O,O')vanadate(V) tetra­hydrate, Sr[VO(O2)2(NH2CH2COO)]·4H2O, crystallized at pH ca 7.4 with similar lattice parameters. The glycinate anion acts as a bidentate N,O-chelating ligand, and the V atom has a penta­gonal bipyramidal geometry, with two [eta]2-peroxo groups and the glycinate N atom in the equatorial plane, and one terminal oxo and a glycinate O atom at the axial positions. The H atoms of three of the four water mol­ecules in the strontium salt exhibited disorder over three positions for each mol­ecule.

CCDC references: 972726 and 972727

Formula: Ca[V(C2H4NO2)(O2)O]·4H2O and Sr[V(C2H4NO2)(O2)O]·4H2O

Keywords: (glycinato)oxidobis(peroxido)vanadate(V); calcium salt; strontium salt; crystal structure.

hkldisplay filedownload file

Structure factor file (CIF format) (144.9 kbytes)
[ doi:10.1107/S0108270113031181/fg3311I.Casup4.hkl ]
Contains datablock I.Ca

hkldisplay filedownload file

Structure factor file (CIF format) (146.6 kbytes)
[ doi:10.1107/S0108270113031181/fg3311I.Srsup5.hkl ]
Contains datablock I.Sr


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