Question

N2O4 is planar (Figure 14.14). Show that it possesses three planes of symmetry.

Answer 1

answer: charged is as follows:
O(-)
|
N(+)=O
|
N(+)=O
|
O(-)

The other structure includes coordinate covalent bond as:

O
||
N-->O
|
N-->O
||
O

Here the he N-O bonds have a resonance canonical structures. The bond angles N-N-O is about 113 o
The electrons are shared between the atoms involved in bond. Unable to find satisfactory diagram to show this.

And they all are in the same plane thats why the N2O4 is planar and possesses three planes of symmetry . Plane of symmetrty , centre of symmetry and axis of symmetry .

Thank you :)