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Article Dans Une Revue Tetrahedron Année : 1995

Macrocyclic dilactams with pendant acidic functions as discriminating agents for lanthanide ions

Résumé

N,N′-bis(carboxymethyl) macrocyclic dilactams were synthesized in good to high yields from diamines and dianhydrides. Their ligand protonation and lanthanide complex stability constants were measured by a potentiometric method in aqueous solution. The lanthanide discriminating power of 12- and 18-membered macrocyclic dilactams derived from EDTA and EGTA measured by their stability constants were compared with other macrocyclic compounds like diaminocrown-ethers and dilactones. In the dilactam series the Eu3+ complex was found to be the most stable for the ligand derived from o-phenylene diamine and EGTA dianhydride.

Dates et versions

hal-02715078 , version 1 (01-06-2020)

Identifiants

Citer

Bernard Cathala, C. Picard, L. Cazaux, P. Tisnès, M. Momtchev. Macrocyclic dilactams with pendant acidic functions as discriminating agents for lanthanide ions. Tetrahedron, 1995, 51 (4), pp.1245-1252. ⟨10.1016/0040-4020(94)00994-6⟩. ⟨hal-02715078⟩
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