Abstract
New organic-inorganic hybrid compound, with formula (C4H6N3O)(6)[(HAsO4)(2)Mo6O19]a <...7H(2)O, was prepared and characterized by IR and UV-visible spectroscopies and X-ray diffraction techniques. Thermal analysis was performed to study their thermal stability. The crystal structure of the title compound (triclinic, space group P - 1, Z = 2) was determined by X-ray diffraction. The compound contains the polyanion [(HAsO4)(2)Mo6O19](6-), which consists of the six molybdenum octahedral grouped into two parts consisting of four edge-sharing octahedral and two face-sharing octahedral, respectively, these two parts are connected by two corner-sharing O atoms to form a bent Mo-6 ring. The polyanion framework derives from the Strandberg type and it is a new isomer. The cytosinium cations (Cyt(+)) are embedded in the channels and interact with the inorganic framework by way of N-H a <- O and O-H a <- O hydrogen bonds. Furthermore, the electrochemical property of this compound has been studied.