tetrakis(N,N'-diethyl-2,3-dihydroxyterephthalamide)-thorium(IV) tetra-anion 4 trimethylbenzylammonium cations and solvent molecules been removed for clarity No Hydrogens are reported in this structure Reference: CCDC Structure ICICED: C.J. Gramer, K.N. Raymond, Inorg. Chem. , Vol 43, 2004, p. 6397