Consider if3o2 (with i as the central atom) (6 pts). (a) how many isomers are possible? (b) assign point group designations to each isomer. (c) which isomer is most likely based on repulsive effects and why? (d) how many vibrational degrees of freedom are possible in if3o2?

A 3 isomers are possible for IF3O2 as shown in figure

B In figure 1, the point group is C2V , In figure 2, the point group is Cs, In figure 3, the point group is D3h

C  Figure 2 is depending more on repulsive effect as two of the flourine is on plane while another is going inside whereas in figure 1 only two flourine present in close vicinity and figure 3 is least repulsive dependent as the adjacent florine are transverse to each other.

Thus, Figure 2 is depending more on repulsive effect

D For non linear,

Vibrational mode  

Thus, 12 Vibrational mode are present.

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