Artículos de revistas
TIN(IV) PHOSPHONATES WITH ALPHA-LAYERED STRUCTURES - SYNTHESIS AND CHARACTERIZATION
Registro en:
Journal Of Materials Chemistry. Royal Soc Chemistry, v. 2, n. 10, n. 1075, n. 1078, 1992.
0959-9428
WOS:A1992JT52500013
10.1039/jm9920201075
Autor
MEDEIROS, ME
ALVES, OL
Institución
Resumen
The synthesis of layered compounds of the general formula Sn(RPO3)2.xH2O (R = phenyl, 2-carboxyethyl) and Sn(ROPO3)2.xH2O (R=dodecyl) are reported. These compounds are formed by the reaction of nitric solutions of SnCl4 with the phosphonic acid or phosphoric ester followed by heating under reflux. The interlayer distances of 13.87, 15.37 and 32.70 angstrom for 2-carboxyethyl, phenyl and dodecyl derivatives, respectively, are determined by the XRD patterns. A linear relationship between the molar volume and the interlayer distance is observed suggesting an alpha structure similar to alpha-Sn(HPO4)2.H2O. FTIR spectra show the formation of an Sn-O-P skeleton. 2 10 1075 1078