CHEM 236W Chapter Notes -Salt Metathesis Reaction, Infrared Spectroscopy, Potassium Bromide

• School: Simon Fraser University
• Department: Chemistry
• Course: CHEM 236W
• Professor: John Canal

Document Summary

Ligands which have the ability to bond to a metal in more than one way are called. ) is one such example; it may bond via the ambidentate ligands. The nitrite ion (no2 nitrogen or oxygen atom. When this ion bonds to the metal through the nitrogen atom, it is referred to as a nitro" (no2) group. Similarly, if the nitrite is bonded through the oxygen ion, it is referred to as a nitrito" (ono) group. In a compound, these two groups exist in equilibrium where the more stable nitro form is dominant. Figure 1: resonance structures of the nitrite ion. 1. To study an ambidentate ligand, nitritopentaamminecobalt(iii)chloride ([co(ono)(nh3)5]cl2) will be synthesized by a double replacement reaction of. To observe the isomerization of the nitrito group, [co(ono)(nh3)5]cl2 was allowed to isomerize in an oven for two days and synthetic nitropentaamminecobalt(iii)chloride ([co(no2) (nh3)5]cl2) was made by dissolving [co(ono)(nh3)5]cl2 in a hot solution.