https://www.selleckchem.com/pr....oducts/GSK461364.htm
Gas-phase tetrapositively charged M(HMNTA)24+ (M = Zr, Hf, Th, and U) ions were generated via electrospray ionization of the M(ClO4)4 and N,N,N',N',N″,N″-hexamethylnitrilotriacetamide (HMNTA) mixtures in acetonitrile. In these complexes, the Zr4+, Hf4+, Th4+, and U4+ metal centers are coordinated by two neutral HMNTA ligands forming antitriangular prism geometry on the basis of DFT calculations. Bonding analysis reveals that the M4+ center is stabilized by six carbonyl oxygen atoms, while the interactions between M4+ and two central a
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