|
Figure 2.
Figure 2. Thermal ellipsoids for the Fe and S atoms of the
[3Fe-4S]^+ (a) and [4Fe-4S]^2+ (b) clusters and their S^γ
ligand atoms. Coordinates and U[ij] parameters are from the
final cycle of refinement. The major axes of the ellipses are
plotted at 50% probability, and the volumes depicted represent
the 25% probability ellipsoids. The orientation of each cluster
is the same as in Figure 1. Note that the shapes of the
ellipsoids manifest the asymmetry of the observed electron
density.
|
