A Crystallographic and Vibrational Study of Cs4[Na2(H2O)10](V10O28)

O. E. PIRO; L. E. VARETTI; S. A. BRANDÁN; A. BEN ALTABEF

JOURNAL OF CHEMICAL CRYSTALLOGRAPHY

Plenum

Año: 2003 vol. 33 p. 57 - 63

1074-1542

The title compound crystallizes in the triclinic space group P-1, with a = 8.6161(4) A, b = 10.591(1) A, c = 11.406(1) A, alpha = 67.9770(1)º, beta = 6.8750(1)º, gamma = 67.7910(1)º, and Z = 1. The structure was refined to R1 = 0.0413. The decavanadate anion V10O28 (6−) and the [Na2(H2O)10]2+ bridged cation are located at inversion centers. Partial deuteration of the substance indicates that the coordinated water molecules are strongly asymmetric, forming weak hydrogen bonds with acceptor oxygen atoms from the decavanadate anion. The infrared and Raman spectra are dominated by the water and decavanadate anion bands.