Guys please help me.Karan Punjabi said:Can some one explain the structure of chromate ion on the basis of hybridisation cause I'm a bit confused I googled about it and there are posts like explaining it as sp3 hybridised ion. Explain please.
The inner s orbital ie 3s would be affected by hybridisation or not? And how we are considering hybridisation between 2 orbitals of different shells?DrDu said:If you really want to describe transition metal compounds in terms of hybrids, I would rather go for ##d^3s## than ##sp^3##, as the p orbitals in a highly charged ion like chromium VI are energetically much higher than the d orbitals. The d3s hybrids are directed along the diagonals of a cube. If you allow for a small substitution of d for p, the two directions along the diagonal become unequal and you will get a more tetrahedral shape.
Got it. One more thing chromate ion is a complex right?DrDu said:The inner 3s orbital is way too low in energy and completely filled. Hence it won't participate in bonding. There is no prinicpal difficulty with hybridizing orbitals of different sub-shells as long as they are of comparable energy and size.