Ammonia

Molecular Orbitals

Using your notes and the material avaliable on this web-site from the "MOs in Inorganic Chemistry" particularly Lecture 4's tutorial problem:

• draw a MO diagram for D_3h NH₃ in chemdraw
• save images of the orbitals drawn in gaussian and paste them onto a copy of this MO diagram replacing the cartoon MOs with the real ones.
• draw a MO diagram for C_3v NH₃
• draw the correlation diagram showing how the orbitals change as the bond angle changes from 90¼ in the D3h structure to Å112¼ in the ground state structure.
• Using MO theory explain why NH₃ is more stable in the C_3v geometry?
• prepare two slides in your presentation where you talk about these diagrams

Well done, this is the end of Part A

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