The structure of CrVMoO7 has been refined fi-om high-resolution X-ray
powder diffraction data. The unit cell is triclinic (space group <P(1)
over bar> with a=5.531(1) Angstrom, b=6.585(1) Angstrom, c=7.864(1) An
gstrom, alpha=96.143(6)degrees, beta=89.847(6)degrees and gamma=101.94
2(6)degrees. A two-step refinement yields R-p=8.7% in the first step (
pattern matching) and in the second step (structure refinement)as well
. The crystal structure of the compound is isotypic to FeVMoO7. The di
stortion of the coordination polyhedra has been discussed within the f
ramework of the bond valence concept and effective coordination number
s.