ProblemSet6

ProblemSet6 - Chem 120A Problem Set 6 Due 1 a In this...

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Chem 120A Problem Set 6 Due 05/08/06 1. a) In this problem, we consider the heteronuclear diatomic molecule CO. The ionization energies of an electron from the valence atomic orbitals on the carbon atom and the oxygen atom are listed below. Atom Valence orbital Ionization energy/ MJ · mol - 1 O 2 s 3.116 2 p 1.524 C 2 s 1.872 2 p 1.023 Use these data to construct a molecular orbital diagram for CO. What are the symmetry designations of the molecular orbitals of CO? What is the electron configuration of the ground state of CO? What is the bond order of CO? Is it paramagnetic or diamagnetic? 2. The following lines were observed in the microwave absorption spectrum of H 127 I and D 127 I between 60 cm - 1 and 90 cm - 1 . ˜ ν /cm - 1 H 127 I 64.275 77.130 89.985 D 127 I 65.070 71.577 78.084 84.591 Use the rigid-rotor approximation to determine the values of ˜ B , I , and R e for each molecule. Do your results agree with what you would expect from the Born-Oppenheimer approximation? Take the mass
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This note was uploaded on 01/25/2011 for the course CHEM 120A taught by Professor Whaley during the Spring '07 term at Berkeley.

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ProblemSet6 - Chem 120A Problem Set 6 Due 1 a In this...

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