(a) Do a HF/6-31G* geometry optimization and frequency calculation on NH3 starting from a planar geometry. Is...

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(a) Do a HF/6-31G* geometry optimization and frequency calculation on NH3 starting from a planar geometry. Is the final structure planar? Are all the vibrational frequencies real?
(b) Repeat the calculation starting with a slightly nonplanar geometry. You might find it convenient to use a dummy atom in the Z-matrix.
(c) What is the HF/6-31G* predicted barrier to inversion of ammonia?
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Quantum Chemistry

ISBN: 978-0321803450

7th edition

Authors: Ira N. Levine

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