Question: (a) Verify that if anharmonicity is taken into account by inclusion of the vexe term in the vibrational energy, then De = D0 + 1/2

(a) Verify that if anharmonicity is taken into account by inclusion of the vexe term in the vibrational energy, then De = D0 + 1/2 hve - 1/4 hvexe.
(b) The 7Li1H ground electronic state has D0 = 2.4287 eV, ve/c = 1405.65 cm-1, and ne xe/c = 23.20 cm-1, where c is the speed of light. (These last two quantities are usually designated ve and vexe in the literature.) Calculate De for 7Li1H.

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