The Role of Ligand Denticity on the Synthesis of Mixed-Ligand Complexes

A Short Review

Authors

  • Ammar J. Alabdali Department of Chemistry, College of Sciences, Al-Nahrain University, Jadriya, Baghdad, Iraq https://orcid.org/0000-0002-8897-7814
  • Zainab N. Zubaidi Institute of Medical Technology - Baghdad, Middle Technical University, Baghdad, Iraq

DOI:

https://doi.org/10.61704/pr.727

Keywords:

Mixed Ligand Complexes, Multidentate Ligands, 8-Hydroxyquinoline, 1, 10- Phenanthroline

Abstract

Mixed-ligand complexes of different metal ions were studied and presented in a variety of ligand types and geometries. It is important to show the role of primary and secondary ligands in the synthesis process, considering the chelation effect of di- and tri-dentate ligands. Meanwhile, the steric effect and ligand size are significant. But the most important point is the sequence of addition of interacting ligands to decide who is coming first to be primary and who is coming next to be considered secondary, therefore, mixed-ligand complex can’t be prepared if the sequence of addition is reversed. This paper reviews the definition, importance and the illustration of important molecules like 8-hydroxyquinoline (HQ) and 1,10- phenanthroline (Phen), …et cetera which are strong bidentate ligands, beside the designed and synthesized large ligands like Schiff-bases which are multidentate ligands, to figure out their role in the synthesis of mixed-ligand complexes.

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Published

2026-11-12

How to Cite

Alabdali, A. J., & Zubaidi, Z. N. (2026). The Role of Ligand Denticity on the Synthesis of Mixed-Ligand Complexes: A Short Review. PROSPECTIVE RESEARCHES, 26(4), 89–97. https://doi.org/10.61704/pr.727