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Abstract
The oxygen parameters in one representative of the scheelite-type structure: lead molybdenum oxide, wulfenite, were determined by neutron diffraction using a single crystal. The following coordinates of the oxygen atom were found: xo = 0.2352, yo = 0.1134, zo = 0.0439. The refinement was carried out by a least-squares procedure on an electronic computer. The structure consists of MoO4 tetrahedra. The Mo–O distance within this tetrahedron is 1.772 Å indicating a covalent link. Each lead atom is surrounded by 8 oxygen atoms belonging to 8 different MoO4 units. The Pb–O distances are: 2.610 Å, four times, and 2.630 Å, four times.
Published Online: 2010-07-28
Published in Print: 1965-04
