In addition to the molecular orbital treatment of H2, the ground
state can be treated by...
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Chemistry
In addition to the molecular orbital treatment of H2, the groundstate can be treated by the so-called valence bond (Heitler-London)approach, where individual covalent bonds are combined to form anantisymmetric wave function with spins up and down. Look up thisapproach and compare the results with the simple MO treatment interms of bond energy (kJ/mol) and bond distance (pm).
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HeitlerLondon model for the hydrogen moleculeis an importantmodel for the understanding of magnetism since it introduces theconcept of an exchange energy very nicely for a twoelectron wavefunction in H2We assume that we have two hydrogen atoms A and B We know thehamiltonian for these asHA h221 2 me e2 40 1 RA r1 1andHB h222 2me e2 401 RB r2 2where RAB
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