Synthesis of Naphthol-Containing Polyamines and Determination of Stability Constants of Their Metal Complexes by Potentiometric Titration
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1997, v.10 no.4, pp.256-263
Kim, Sun-Deuk
Kim, Jun-Kwang
Kim,
S., &
Kim,
J.
(1997). Synthesis of Naphthol-Containing Polyamines and Determination of Stability Constants of Their Metal Complexes by Potentiometric Titration. Analytical Science and Technology, 10(4), 256-263.
Abstract
The new naphthol-containing hexadentate ligands, 1,12-bis (2-naphthol)- 2,5,8,11-tetraazadodecane 4HCl (nptr) and 1,14-bis(2-naphthol)- 2,6,9,13- tetraazatetradodecane .4HCl (npptr) were synthesized and characterized by elemental analysis, IR, NMR, and mass spectrometry. Acid dissociation constants and stability constants of Co(II), Ni(II). Cu(II), and Zn(II) complexes were determined at <TEX>$25.0^{\circ}C$</TEX> and ionic strength (<TEX>$\mu$</TEX>)
- keywords
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synthesis,
basicity,
stability constants,
potentiometry