抄録
The crystal structure of Ag2GeO3 was determined from laboratory X-ray powder diffraction data (CuKα1) using the Rietveld method. The title compound is orthorhombic with space group P212121, Z = 4, unit-cell dimensions a = 0.46309(1) nm, b = 0.71393(2) nm, c = 1.04079(3) nm and V = 0.34410(2) nm3. The final reliability indices were Rwp = 5.58 %, S = 1.26, Rp = 4.20 %, RB = 0.67 % and RF = 0.35 %. The GeO4 tetrahedra form infinite chains of [Ge2O6] along the a axis, with two tetrahedra per identity period of 0.463 nm. Individual chains are connected by Ag atoms, one-half of which are almost linearly coordinated by two O atoms, and the rest are coordinated by three O atoms. The relatively short Ag-Ag distances of 0.299 - 0.339 nm indicate Ag(I)-Ag(I) interaction. This compound is isostructural with Ag2SiO3
