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Crystal structure of silver metagermanate, Ag2GeO3

  • Hirokazu Kurachi (a1), Tomoyuki Iwata (a1), Shuxin Ouyang (a2), Jinhua Ye (a2) and Koichiro Fukuda (a1)...

Abstract

The crystal structure of Ag2GeO3 was determined from laboratory X-ray powder diffraction data (Cu 1) using the Rietveld method. The title compound is orthorhombic with space group P212121, Z=4, unit-cell dimensions a=0.463 09(1) nm, b=0.713 93(2) nm, and c=1.040 79(3) nm, and V=0.344 10(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 to 0.339 nm indicate Ag(I)-Ag(I) interaction. This compound is isostructural with Ag2SiO3.

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Corresponding author

a)Author to whom correspondence should be addressed. Electronic mail: fukuda.koichiro@nitech.ac.jp

References

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Keywords

Crystal structure of silver metagermanate, Ag2GeO3

  • Hirokazu Kurachi (a1), Tomoyuki Iwata (a1), Shuxin Ouyang (a2), Jinhua Ye (a2) and Koichiro Fukuda (a1)...

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