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Overlap of the central portions of the following DNC structures (see Table 1): silver, 3S8G X-ray crystal structure; orange, Fea3HS,3+–H2O–CuB(a); purple, Fea3HS,3+–H2O–CuB(b); blue, Fea3HS,3+–H2O–CuB(c); and green, Fea3HS,3+–H2O–CuB(d). (A) and (B) are the views of this overlap from two different angles. For clarity, the H-bonding water molecules and the hydrogen atoms are not shown.
