Vanadyl Phosphate Intercalated with Diethyl Ether

Abstract

Vanadyl phosphate intercalated with diethyl ether has been prepared by replacing 2-propanol molecules in the corresponding VOPO4 intercalate with diethyl ether. The intercalate contains one diethyl ether molecule per formula unit. The guest molecules are anchored to the host layers by an O−V donor−acceptor bond. The local structure and interactions in the intercalate have been suggested on the basis of quantum chemical calculations. The intercalate is thermally stable. Its diffractogram does not change up to 100 °C. A new phase with lower basal spacing appears at 130 °C. The intercalate is very moisture-sensitive; the diethyl ether molecules are easily replaced by water molecules. The replacement of diethyl ether in the vanadyl phosphate intercalate by the water molecules has been monitored by infrared spectroscopy. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)