The ligand P5- has been reported to act as a stronger acceptor than a. Using the g...

The ligand P₅^- has been reported to act as a stronger acceptor than

a. Using the group orbital approach as for ferrocene (see Figure 13.27), sketch the group orbitals arising from the P₅ rings. Then show how the group orbitals can interact with appropriate orbitals on a central transition metal.

b. On the basis of your diagram, suggest why the P₅^- ligand might act as a stronger acceptor than

c. Using molecular modeling software, calculate and display the molecular orbitals of Compare your results with those described in the literature for this complex. (See E. Urnezius, W. W. Brennessel, C. J. Cramer, J. E. Ellis, P. von Ragué Schleyer, Science, 2002, 295, 832; a comparison of the molecular orbitals of and P₅ ^- can be found in H-J. Zhai, L-S. Wang, A. E. Kuznetsov, A. I. Boldyrev, J. Phys. Chem. A, 2002, 106, 5600.)