Siderophore complexes, plutonium

Unlike the exclusively 6-coordinate iron(iii) siderophore complexes, higher coordination numbers are possible with plutonium the complex of Pu" with desferrioxamine E (DEE a hexadentate iron-binding siderophore ligand) has shown it to contain 9-coordinate [Pu(dfe)(H20)3]+ ions with a tricapped trigonal prismatic geometry (Figure 11.13). 

Figure 17 Plutonium(IV) coordination sphere in the crystal structure of complexed by the siderophore desferrioxamine E (Neu, Matonic et al. Angew. Chem., Int. Ed. Engl. 2000, 39, 1442-1444).

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