Chemical Forums
Chemistry Forums for Students => Inorganic Chemistry Forum => Topic started by: 212020 on April 22, 2021, 06:19:25 PM
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Group theory is often used by chemists to assist in the interpretation of infrared spectra. For example, there are four N-H bonds in NH4 +, with four stretching modes possible, where each is a linear combination of the four stretching modes and each has a symmetry. There is a possibility that several vibrational modes occur at the same frequency, and are therefore degenerate.
(a) In the case of the tetrahedral ion NH4 +, is it necessary to consider the possibility of degeneration? Is it possible that degeneration occurs in any of the vibrational frequencies of NH2D2 +?
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@212020 Maybe you should just read about spectrum of CH4 and H2O instead.