Explain the important aspects of resonance with reference to the `CO_3^(2-)` ion.
Resonance in `CO_3^(2-)`, I, II and III represent the three canonical forms.
- In these structures, the position of nuclei are same.
- All the three forms have almost equal energy.
- Same number of paired and impaired electrons, they differ only in their position.
According to experimental findings, all carbon to oxygen bonds in `CO_3^(2-)` are equivalent. Hence, it is inadequate to represent `CO_3^(2-)` ion by a single Lewis structure having two single bonds and one double bond.
Therefore, carbonate ion is described as a resonance hybrid of the following structures
Video Tutorials For All Subjects
- Bond Parameters - Resonance Structures