Wize University Chemistry Textbook > Molecular Orbital Theory
MO Diagrams of Heteronuclear Diatomics
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MO Diagrams of p Heteronuclear Diatomics
- MO diagrams can be drawn for heteronuclear diatomics, which means diatmoic molecules formed between two atoms of different elements. The MO diagrams do not change significantly - they are drawn in a similar way to the homonuclear diatomics (two atoms of the same element).
- For heteronuclear diatomic molecules where it is not clear whether there will be s-p mixing or not (e.g. CO), a MO diagram will be provided and you only need to fill it up with electrons.
Ex) CO
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MO Diagrams of p and s Heteronuclear Diatomics
- For MO diagrams between p and s elements, you are responsible for drawing the MO diagrams of these molecules.
Ex) HF
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MO Diagrams of p Heteronuclear Diatomics - Example Problem
Ex) Fill-out the MO diagram below for NO+. What is the bond order?
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MO Diagrams of p and s Heteronuclear Diatomics - Example Problem
Ex) Draw the MO diagram of OH-. What is the bond order?
See video for drawing of MO diagram. Bond order is 1.
Mark Yourself Question
- Grab a piece of paper and try this problem yourself.
- When you're done, check the "I have answered this question" box below.
- View the solution and report whether you got it right or wrong.
Practice Question: MO Diagrams of Heteronuclear Diatomics
Fill in the MO diagram below of CF. What is the bond order?
