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Molecular Orbitals Two interacting orbitals make two new orbitals. Using a 1s orbital on two H atoms: anitbonding orbital = higher energy bonding orbital.

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Presentation on theme: "Molecular Orbitals Two interacting orbitals make two new orbitals. Using a 1s orbital on two H atoms: anitbonding orbital = higher energy bonding orbital."— Presentation transcript:

1 Molecular Orbitals Two interacting orbitals make two new orbitals. Using a 1s orbital on two H atoms: anitbonding orbital = higher energy bonding orbital = lower energy

2 MO Diagrams: H and He molecules
Atomic orbitals on the sides; molecular orbitals inside.

3 MO Diagrams Atomic orbitals on the sides; molecular orbitals inside.

4 MOs involving p orbitals
Two interacting orbitals make two new orbitals. Using a 1s orbital on two H atoms: sigma orientation = pointing at each other pi orientation = pointing side-by-side

5 p-Orbital MO Diagrams Li2 – N2

6 p-Orbital MO Diagrams Li2 – N2
What about the 1s and 2s orbitals?

7 p-Orbital MO Diagrams Li2 – N2

8 p-Orbital MO Diagrams O2 – Ne2

9 p-Orbital MO Diagrams O2 – Ne2

10 Heteronuclear Diatomics: CO

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