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Title: Study of ternary complexes involving a tridentate and a monodentate ligand with side groups
Authors: Manjula, V
Patel, Pushpa
Bhattacharya, Pabitra K
Issue Date: Oct-1995
Publisher: NISCAIR-CSIR, India
Abstract: Stability constants of mixed ligand complexes(MAL) [whereM= Cu(II) Ni(II) A= indole acetic acid (IAA) (A), indole propionic acid IPA (A), indole butyric acid IBA(A), L=2-(o-hydroxybenzylamino) acetic acid (HBAA) (1)= 2-(o-hydroxybenzylamino) propionic acid (HBAP) (L2)= 2-(o-hydroxybenzylamino)-3-(phenyl) propionic acid (HBAPP) L3, 2-(o-hydroxybenzylarnino)-3-(p-hydroxyphenyl) propionic acid (HBAHPP) L4,2-[o-hydroxybenzylamino 3-(3-indolyl) propionic acid] [HBAIP]L5, have been determined by potentiometric pH titrations in 50% v/v dioxan water medium. The ternary complexes are significantly stable due to intramolecular interligand interactions between indole residue of A and non-coordinating side groups of L. The relative stabilities of Cu(II) and Ni(II) complexes have been explained on the basis of new concept of interaction between metal orbital and non-coordinating group of the two ligands.
Page(s): 819-821
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.34A(10) [October 1995]

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