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metal-organic compounds
The diprotonated (H2TETP)2- macrocycle in the title compound, 2Na+.(C22H38N4O8)2-.16H2O [2Na+·(H2TETP)2-.16H2O], possesses a [3434] conformation, the propionate arms all being deprotonated. Two are extended and the other two are folded towards two protonated N atoms. The crystal structure is stabilized by a complex hydrogen-bonding scheme since the unit cell contains 16 water molecules.