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

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    Synthesis, Protonation Constants and Stability Constants for <TEX>$Co^{2+}$</TEX>, <TEX>$Ni^{2+}$</TEX>, <TEX>$Cu^{2+}$</TEX>, and <TEX>$Zn^{2+}$</TEX> Ions of 1,15-bis(2-pyridyl)-2,5,8,11,14-pentaazapentadecane

    Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
    1996, v.9 no.4, pp.411-415
    Kim, Sun-Deuk
    Kim, Jun-Kwang
    Jung, Woo-Sik
    Chung, Koo-Chun
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    Abstract

    The new potentially heptadentate <TEX>$N_7$</TEX> ligand 1, 15-bis(2-pyridyl)-2, 5, 8, 11, 14-pentaazapentadecane(pytetren) has been synthesized and characterized by EA, IR, NMR, and mass spectrometry. Its proton association constants (log <TEX>$K{_H}^n$</TEX>) and stability constants(log <TEX>$K_{ML}$</TEX>) for <TEX>$Co^{2+}$</TEX>, <TEX>$Ni^{2+}$</TEX>, <TEX>$Cu^{2+}$</TEX>, and <TEX>$Zn^{2+}$</TEX> ions were determined at 298.1K and ionic strength

    keywords
    protonation constant, stability constant, potentiometry


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