14) Determine how many stretching modes are possible for ammonia. What are their symmetries, and how...
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14) Determine how many stretching modes are possible for ammonia. What are their symmetries, and how many are IR active? (4P) 12) Six of the nine vibrational degrees of freedom of SiF4 are IR active. Why are IR absorptions observed only at 389 and 1030 cm¹ for this compound? (5P) 2) For each of the following molecules, determine the highest order rotation axis of symmetry. (10P) benzene ammonia IF5 cyclo-pentadiene sulfur, as in S8: 14) Determine how many stretching modes are possible for ammonia. What are their symmetries, and how many are IR active? (4P) 12) Six of the nine vibrational degrees of freedom of SiF4 are IR active. Why are IR absorptions observed only at 389 and 1030 cm¹ for this compound? (5P) 2) For each of the following molecules, determine the highest order rotation axis of symmetry. (10P) benzene ammonia IF5 cyclo-pentadiene sulfur, as in S8:
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a Ammonia NH3 has a total of three stretching modes These are the symmetric stretching mode nu1 the ... View the full answer
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