MACROCYCLIC DILACTAMS WITH PENDANT ACIDIC FUNCTIONS AS DISCRIMINATING AGENTS FOR LANTHANIDE IONS

被引：9

作者：

CATHALA, B

PICARD, C

CAZAUX, L

TISNES, P

MOMTCHEV, M

机构：

[1] UNIV TOULOUSE 3, CNRS, SYNTH & PHYSICOCHIM ORGAN UNITE 471, F-31062 TOULOUSE, FRANCE

[2] BULGARIAN ACAD SCI, INST ORGAN CHEM, BU-1113 SOFIA, BULGARIA

来源：

TETRAHEDRON | 1995年 / 51卷 / 04期

关键词：

DILACTAMS; LANTHANIDE-ION SELECTIVE REAGENTS; STABILITY CONSTANTS; POTENTIOMETRY; EDTA AND EGTA DERIVATIVES;

D O I：

10.1016/0040-4020(94)00994-6

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

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 ETGA dianhydride.

引用

页码：1245 / 1252

页数：8

共 23 条

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