Typical Ligands That Often Behave As Redox Non-Innocent Ligands
- O2 and NO.
Ligands with extended pi-delocalization such as porphyrins and phthalocyanines, ligands with the generalised formulas 2- or D=CR-CR=D (D = O, S, NR’ and R, R' = alkyl or aryl), and similar related systems are often non-innocent. For example:
- dioxalenes, such as catecholates.
- dithiolenes, such as 1,2-maleonitriledithiolate
- diimines such as derivatives of 1,2-diaminobenzene, α-diimines, and dimethylglyoxime.
- pyridine-2,6-diimine ligands (relevant in polymerisation and hydrogenation catalysis).
The pyridine-2,6-diimine ligand can be easily reduced by one or two electrons.
Read more about this topic: Non-innocent Ligand
Famous quotes containing the words typical and/or behave:
“It was announced that the trouble was not “malignant.”... It was a typical triumph of modern science to find the only part of Randolph that was not malignant and remove it.”
—Evelyn Waugh (1903–1966)
“History teaches us that men and nations behave wisely once they have exhausted all other alternatives.”
—Abba Eban (b. 1915)