Question

Question: Draw all the possible Louis structure for dimethylborazine$\left[{\left({\mathbf{CH}}_{\mathbf{3}}\right)}_{\mathbf{2}}{\mathbf{B}}_{\mathbf{3}}{\mathbf{N}}_{\mathbf{3}}{\mathbf{H}}_{\mathbf{4}}\right]$ ]. (See exercise) Would there be a different number of structure if there was no resonance?

Short answer

Answer

There are four possible Louis structure for dimethylborazine. If there was no resonance, structures would be possible.

Step-by-step solution

Draw the Louis structures for CH32B3N3H4

The circles in the Louis structures represent resonance forming ability of borazine.

Consider the case in absence of resonance.

In the absence of resonance,5 structures would be possible. The additional one would be related to the first structure.