Question 2. Vibrational and rotational spectroscopy A. Calculate the reduced mass for 14N¹60 and its moment of inertia with a bond length of 127 pm.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Question 2. Vibrational and rotational spectroscopy
A. Calculate the reduced mass for ¹4N¹60 and its moment of inertia with a bond length of 127
pm.
B. The spring constant between the oxygen atoms in ¹60₂ is around 1177 N m²¹. Calculate the
vibrational frequency of the molecule.
C. Which of the following molecules corresponds to the IR spectrum given in Figure 1? Justify
your answer and assign the main peak in the spectrum. What could be the origin for the
peak at around 3400 cm³¹?
OH
100
при
500
Transmittence, %
50
D
4000
5000
2008
wavenumber cm
14300
Figure 1. IR spectrum
1000
Transcribed Image Text:Question 2. Vibrational and rotational spectroscopy A. Calculate the reduced mass for ¹4N¹60 and its moment of inertia with a bond length of 127 pm. B. The spring constant between the oxygen atoms in ¹60₂ is around 1177 N m²¹. Calculate the vibrational frequency of the molecule. C. Which of the following molecules corresponds to the IR spectrum given in Figure 1? Justify your answer and assign the main peak in the spectrum. What could be the origin for the peak at around 3400 cm³¹? OH 100 при 500 Transmittence, % 50 D 4000 5000 2008 wavenumber cm 14300 Figure 1. IR spectrum 1000
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