Monodentate: Difference between revisions

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A Monodentate ligand is a ligand which forms only one bond with the central atom, usually a metal ion. A monodentate ligand is also sometimes called a "unidentate ligand" from the root words meaning "one tooth". A monodentate ligand, like other types of ligands, can be a neutral molecule or an ion with a lone pair.

Some examples of common monodentate ligands that are neutral molecules are H₂O (aqua), NH₃ (ammine), CH₃NH₂ (methylamine), CO (carbonyl), and NO (nitrosyl).

Some examples of monodentate ligands that are anions are F^- (fluoro), CN^- (cyano), Cl^- (chloro), Br^- (bromo), I^- (iodo), NO₂^- (nitro), and OH^- (hydroxo).

e.g. There are 6 CN^- monodentate ligands in [Fe(CN)₆]^4- ("hexacyanoferrate(II)ion").

References

Zumdahl, Steven S. Chemical Principles, Fifth Edition. New York: Houghton Mifflin, 2005. 944-948.

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 Some examples of monodentate ligands that are anions are F<sup>-</sup> (fluoro), CN<sup>-</sup> (cyano), Cl<sup>-</sup> (chloro), Br<sup>-</sup> (bromo), I<sup>-</sup> (iodo), NO<sub>2</sub><sup>-</sup> (nitro), and OH<sup>-</sup> (hydroxo).
- e.g. There are 6 CN<sup>-</sup> monodentate ligands in [Fe(CN)<sub>6</sub>]<sup>4-</sup> (the entire complex ion is called the "hexacyanoferrate(II)ion").
+ e.g. There are 6 CN<sup>-</sup> monodentate ligands in [Fe(CN)<sub>6</sub>]<sup>4-</sup> ("hexacyanoferrate(II)ion").
 == References==