The Stability of Divalent 3d- and Trivalent 4f-Metal Complexes with Diazapolyoxa Macrocyclic Ligands
✍ Scribed by Giorgio Anderegg
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- German
- Weight
- 337 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0018-019X
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✦ Synopsis
Abstract
The complex formation of some divalent 3d‐ and trivalent 4f‐metal ions with four macrocyclic ligands has been investigated in methanol/water 95:5 by use of alkalimetric titrations. In contrast to alkali and alkaline‐earth cations the obtained stability constants are quite low. The reasons of this effect are discussed.
📜 SIMILAR VOLUMES
## Abstract NMR, potentiometric, and UV/VIS measurements were run to study the protonation and the In^3+^ and Cu^2+^ stability constants of 1,4,7,10‐tetraazacyclododecane‐1,4,7‐triacetic acid (do3a, L). The protonation of do3a follows the typical scheme with two high and several low log __K__~H~ va
## Abstract The potentiometric study of the complexation of Cu^2+^ with 1,4,7‐triazacyclononane (**1**), 1,4,8‐triazacyclodecane (**2**) 1,5,9‐triazacyclododecane (**3**) has shown that CuL, CuL~2~ and (CuLOH)~2~ are the main species present in solution. Their stabilities (__Table 1__) and their ab