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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

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
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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
synthesis, basicity, stability constants, potentiometry


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