In many different cases of Nitro group I have seen that only one oxygen atom is particularly used for hydrogen bonding but not the other one.But I guess both the bonds should be polar and hence show hydrogen bonding.
Please explain.
In many different cases of Nitro group I have seen that only one oxygen atom is particularly used for hydrogen bonding but not the other one.But I guess both the bonds should be polar and hence show hydrogen bonding.
Please explain.
The oxygen atoms are indistinguishable. That they look distinct is an artifact of the Lewis notation. There are examples when both are acting as hydrogen bond acceptor.