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. 1998 Jun 9;95(12):6663–6668. doi: 10.1073/pnas.95.12.6663

Figure 1.

Figure 1

Cobalt(III) complex of acacen. The substitution of an axial ligand from cobalt(III) with a nitrogen from histidine results in a Co(III)-His complex. This histidine is from a peptide or protein containing a zinc finger domain. The complexes used in this work vary in the nature of the axial ligands, X, and the group at position R.