Week 8 Handout - Week 6 Molecular Structure Chem 20A Scerri...

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Week 6: Molecular Structure Chem 20A- Scerri Fall ‘07 1. What is anti-bonding? What is the difference between a bonding orbital and an anti- bonding orbital? Sketch the graphs for the probability density vs. z for bonding, anti- bonding, and non-bonding orbitals. Describe the differences between the bonding/anti- bonding graphs as compared to that of the non-bonding nuclei. 2. Define paramagnetic and diamagnetic. 3. What is the equation for bond order and how can you tell if a bond will form? What does the bond order tell you about the molecule?
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Unformatted text preview: 4. Draw out the order of energies for the molecular orbitals of B 2 . How does the order of energies change for the molcule O 2 ? Draw out the molecular orbitals for O 2 . Are these molecules paramagnetic or diamagnetic? 5. Show the complete molecular orbital diagram for the ion N 2 2+ . Include the contributing atomic orbitals as well as the labeled molecular orbitals formed by outer shell electrons of the two atoms. What is the expected magnetic behavior of the ion? Bond order?...
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