Identify the donor and/or acceptor MOs that contribute to the complex MOs. For example, C MO7 is comprised of the two orbitals D MO3 plus A MO4. This combination is obvious because in C MO7, the donor has opposite signs of the wavefunction above the O atom where there are no H atoms and below the O atom on the side of the H atoms (shown as green and purples areas respectively, looks like D MO3 with opposite colors), and the acceptor has opposite signs on either side of the H-O-H plane (green and purple, looks like A MO4). Do the same analysis for the seven other complex MOs.

Which donor or acceptor MO contributes most to C MO1? C MO2? C MO3? C MO4? C MO5? C MO6? C MO8?

[Select from the eight D and A MOs: D MO1, D MO2, D MO3, D MO4, A MO1, A MO2, A MO3, A MO4]

Donor H2O Complex H2OH2O