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ligand
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ligand

In chemistry, a group that bonds to a central atom or ion of a metal; the result is called a coordination complex. An example of a neutral ligand is ammonia; the nitrosyl ion NO+ is a charged ligand. An example of a coordination complex is hexaminocobalt chloride, [Co(NH3)6]Cl3, in which the central cobalt ion (Co3+) is surrounded by covalent bonds with six ammonia molecules and ionic bonds with three chloride ions.

Ligands are used in medicine as an antidote to heavy metal poisoning, removing the metal ions by attaching themselves to form a harmless compound.
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In most of the complexes studied the Cis- configuration Fig(2), as bidentate ligand bonding both through the thion / thiol sulphur atom and the hydrazinic nitrogen atom.
Synthesis and characterization of Ni(II) complexes of anisaldehyde ... by Kumar, Navin; Saxena, Anjali; Tiwari, B.; Agarwal, Manoj; Pal, Naresh; Gurtu, J.N.; Gupta, R. / Bulletin of Pure & Applied Sciences-Chemistry
Bidentate ligands such as 2,4- and 2,5-pyridine dicarboxylic acids have been studied and shown promising results with both Ni(II) and Co(II) salts.
Chemistry and chemical engineering by Journal of the Mississippi Academy of Sciences
2]) with the bidentate ligand 1,4-bis(3-pyridyl)-2,3-diaza-1,3-butadiene (L2) in a methylene chloride/ethanol solvent mixture.
Crystal structure and characterization of a new open-framework ... by Davis, Harvey; zur Loye, H.; Peterson, LeRoy, Jr. / Bulletin of the South Carolina Academy of Science
 
 
 
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