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Figure 4.
Figure 4 Anomalous difference map calculated for the best
Ta[6]Br[12] cluster, TBR1, using phases generated by SOLVE and
subsequent density modification for Ta-MAD data truncated at
different d[min] levels: 1.8 Å (a), 2.6 Å (b) and
2.9 Å (c). The maps were contoured at levels of 18  for
(a) and (c) or 6 for
(b). (b) must be contoured at a lower level
to emphasize its features or it would appear to be spherical. In
(c), lowering of the contour level does not reveal any real
features. The dark balls indicate the Ta positions located
automatically by SOLVE.
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