Coordination Compounds

Draw the excited state and find hybridisation in order to find shape of molecule.

undefined

undefined

Haemoglobin, contains two part , haem and globular protein. Haem part of haemoglobin contains one ion (iron) coordinated in a square planar array with the four N-atoms of a porphyrin molecule.
Chlorophyll is a coordination compound of , vitamin is a coordination compound of Co while Mohr's salt is a double salt, not a coordination compound.