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Formation of mixed ligand complexes of Gd(III), Th(IV) and UO22+ cations with NTA and dicarboxylic acids

✍ Scribed by Chunji Niu; Gregory R. Choppin

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
341 KB
Volume
131
Category
Article
ISSN
0020-1693

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✦ Synopsis

The stability constants have been measured in 0.10 M (NaC104) ionic strength solution at 25 "C for the reaction: MXtL=MXL where M = Gd3+, UOZ2* and Th4', X = nitrilotriacetate and L = malonate, succinate, gluturate and adipate. These stability constants, for a particular L, follow the order:

For the different ternary ligands, the stability constants for all three metals decrease from malonate to succinate to glutarate while those for glutorate and adipate are roughly equal for each metal. The results are discussed in terms of formation by the ternary ligand L of monodentate or bidentate complexes .

📜 SIMILAR VOLUMES

Stereoselectivity in reactions of metal
Stereoselectivity in reactions of metal complexes. V. Synthesis of mixed-ligand cobalt(III) complexes with (S)-aspartic-N-monoacetic acid and different amino-acids
✍ Gérard Colomb; Klaus Bernauer 📂 Article 📅 1977 🏛 John Wiley and Sons 🌐 German ⚖ 370 KB

## Abstract The synthesis of mixed‐ligand cobalt(III) complexes with (__S__)‐aspartic‐N‐monoacetic acid ((__S__)‐AMA) and different amino‐acids Na[Co((__S__)‐AMA)(AA)] (AA = gly, (__R__)‐ and (__S__)‐ala, val, phe, ser and leu) leads to a mixture of __cis__‐N‐ and __trans__‐N‐isomers. These isomers