The ion [Pt2D9]5-, shown below, has eclipsed geometry. a. What is the point group o...

The ion [Pt₂D₉]₅-, shown below, has eclipsed geometry.

a. What is the point group of this ion?

b. Assume that the platinums can potentially use s , p , and d orbitals to interact with the central deuterium. If the z axis is chosen to be collinear with the principal axis of rotation:

1. Sketch the group orbitals of the platinum atoms that potentially could interact with the central D. Be sure to label all orbitals. 2. Show how the group orbitals and the central atom would interact.

3. Which interaction would you expect to be the strongest, and why?