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Figure 6.
Figure 6. Thermal probability ellipsoids for the active
sites of the (a) Cu-Zn, (b) as-isolated and (c) Zn-Zn
structures. The sites show only limited anisotropy. The highly
anisotropic ellipsoid for Cu(II) in the Cu-Zn structure is
indicative of a range of positions adopted by the metal ion.
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