homework_problem_set_4_key

homework_problem_set_4_key - Chemistry 312 Problem Set #4...

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Chemistry 312 Problem Set #4 key Due Mon. Feb. 22, 2010 1. Assign the molecule below to a point group. Show what happens to the numbering scheme and shading scheme of the following molecule upon clockwise rotation about the C 3 axis . O Mn O O O O O 1 1 2 2 3 3 D 3 O Mn O O O O O 3 3 1 1 2 2 C 3
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2. Like H 2 O, SO 2 possesses C 2v symmetry. Use the character table below to determine the symmetry labels for the sulfur s, p x , p y , and p z orbitals, and the "ligand" sigma and pi LGOs (shown on the next page). Note that the sulfur and oxygens all lie in the yz plane. The pi-LGOs (next page) are perpendicular to this plane. O S O z y The sulfur s–orbital possesses a 1 symmetry. The sulfur p z –orbital possesses a 1 symmetry. The sulfur p x –orbital possesses b 1 symmetry. The sulfur p y –orbital possesses b 2 symmetry. 2b. On the basis of their symmetry, which of the sulfur orbitals would overlap with the σ –LGO's shown on the next page? The
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homework_problem_set_4_key - Chemistry 312 Problem Set #4...

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