Studies On Some Acid Divalent-Metal Nitrilotriacetate Complexes
AbstractIR and 1H-NMR studies on nitrilotriacetic acid (H3NTA) suggest that the acid exists in the zwitterion form, which allows the existence of intermolecular hydrogen bonding. A tetrahedral structure is established for eleven (1:1) anhydrous acid-metal (II) nitrilotriacetates complexes. The ten Dq values for the colored complexes were determined spectrophotometrically. The pKa values for the eleven acid metal complexes [M(HNTA)].(OH2)3] were determined and compared with the corresponding pKa values of the [M(OH2)n]+2 ions and also with the log β1 values of the corresponding [M(NTA)]- complexes. X-ray diffraction studies on the ligand and on eight of these complexes are described.
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Souaya, E.R.; Hanna, W.G.; Ismail, E.H.; Milad, N.E. Studies On Some Acid Divalent-Metal Nitrilotriacetate Complexes. Molecules 2000, 5, 1121-1129.
Souaya ER, Hanna WG, Ismail EH, Milad NE. Studies On Some Acid Divalent-Metal Nitrilotriacetate Complexes. Molecules. 2000; 5(10):1121-1129.Chicago/Turabian Style
Souaya, E. R.; Hanna, W. G.; Ismail, E. H.; Milad, N. E. 2000. "Studies On Some Acid Divalent-Metal Nitrilotriacetate Complexes." Molecules 5, no. 10: 1121-1129.