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## Main Question or Discussion Point

Hi,

just wondering about MO theory. Take O2 for example; O is sp2 hybridised according to VB theory. However, when drawing the MO diagram for O2, one considers the sigma overlap between the s orbital and p orbitals separately (according to the theory), rather than considering the overlap of sp2 orbitals and one pz pi overlap. Why is this so?

Thanks to anyone who can help!

Cheers!

just wondering about MO theory. Take O2 for example; O is sp2 hybridised according to VB theory. However, when drawing the MO diagram for O2, one considers the sigma overlap between the s orbital and p orbitals separately (according to the theory), rather than considering the overlap of sp2 orbitals and one pz pi overlap. Why is this so?

Thanks to anyone who can help!

Cheers!