Homoleptic

In inorganic chemistry, a homoleptic chemical compound is a metal compound with all ligands identical.[1] The term uses the "homo-" prefix to indicate that something is the same for all.

Some compounds with names that suggest that they are homoleptic are in fact heteroleptic, because they have ligands in them which are not featured in the name. For instance dialkyl magnesium complexes which are found in the equilibrium which exists in a solution of a Grignard reagent in an ether, have two ether ligands attached to each magnesium centre.

Another example is a solution of trimethyl aluminium in an ether solvent (such as THF), similar chemistry should be expected for a triaryl or trialkyl borane.

Any metal species which has more than one type of ligand is heteroleptic.

It is possible for some ligands such as DMSO to bind with two or more different coordination modes. It would still be reasonable to consider a complex which has only one type of ligand but with different coordination modes to be homoleptic. For the complex dichlorotetrakis(dimethyl sulfoxide)ruthenium(II), DMSO coordinates via both sulfur and oxygen atoms.

Examples
gollark: Your model is bad then.
gollark: Wait, that doesn't actually disagree with a bunch of human morality-related intuitions, BEE.
gollark: That's why my new moral system ignores all moral intuitions and says that you should kill everyone who disagrees with my new moral system.
gollark: Your model is wrong then.
gollark: So I can ethically murder future parents if I consider murdering children first! Cool.

References
  1. IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). Online corrected version:  (2006–) "homoleptic". doi:10.1351/goldbook.H02850
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.