Chemist20 said:Okay, simple and probably stupid question: why is permanganate not a coordination compound?after all it's a metal and oxygens which can act as ligands right?
thank you!
Chemist20 said:Okay, simple and probably stupid question: why is permanganate not a coordination compound?after all it's a metal and oxygens which can act as ligands right?
thank you!
asym said:It's not simple nor stupid at all. Coordination compounds are defined rather through their fomation than their actual bonding properties. Usually coordinate covalent bonding is understood as a transfer of lone electron pair of a donor ligand (can be ion or neutral molecule) to a bond with central (acceptor) atom. Permanganate is not considered a coordination compound, since no chemist would think of it as a product of Mn7+ cation and 4 O2- anions.
Just ordinary inorganic anion, no need for a special name.Chemist20 said:ooooh okay, I see. So what would it be then?
Permanganate, with the chemical formula KMnO4, is not considered a coordination compound because it does not have a central metal ion bonded to ligands. Instead, it is an ionic compound with potassium cations (K+) and permanganate anions (MnO4-).
The main difference between a coordination compound and an ionic compound is the presence of a central metal ion bonded to ligands in coordination compounds, while ionic compounds do not have this type of bonding. Coordination compounds also tend to have more complex structures and exhibit different chemical and physical properties compared to ionic compounds.
Yes, permanganate can form coordination compounds when it is coordinated to a central metal ion. However, this is not its natural state and it requires a reaction with other compounds to form coordination complexes.
Common examples of coordination compounds include hemoglobin, chlorophyll, vitamin B12, and many other metalloproteins. Inorganic coordination compounds, such as platinum-based chemotherapy drugs and metal catalysts, are also widely used in industry and medicine.
It is important to understand the differences between coordination compounds and other types of compounds because they have distinct properties and reactivity patterns. Coordination compounds have unique structures and bonding, making them useful in a wide range of applications in chemistry, biology, and materials science.