Problems |
7.1
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Write the Hamiltonian for a Li atom and a Li2 molecule. |
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| 7.2 |
Estimate the value of the MO on the contour C2 of fig 7.3 |
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| 7.3 |
What is the difference between binding energy and bond dissociation energy? |
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| 7.4 |
Draw a few contours of the bonding MO of H2+ in planes perpendicular to the internuclear axis. Consider three planes |
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| a) |
A plane bisecting the nuclei, |
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| b) |
A plane containing one of the two nuclei and |
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| c) |
Any plane other than (a) and (b) above. Compute the values of contours by calculating the distances of any point on the contour from each of the nuclei. |
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| 7.5 |
What are the electronic configurations of Li2+ , Li2- , N23+ and O22- ? |
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| 7.6 |
Why does He2+ have a bound state while He2 does not? |
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Why is the binding energy of H2 less than that of H2+ ? Why is the bond length of H2 less than that of H2+ ? Please note the convention: lower value of potential energy implies a stronger bond. |
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