3. Calculate and describe the vibrational modes of H., and list which modes are IR active. Give the expected wavenum...
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MUTUI IC U P! 1 point 5. Calculate and describe the vibrational modes of H.O and list which modes are IR active. Give the expected wavenumber of 2 of the stretches. 18 points 6. What are the major advantages of an ITIN
Essay 2: List the different modes of carbon tetrachloride. Which modes are IR active and which are Raman active? [20 points)
Vibrational modes
EXERCISE 11.17: Determine the number of IR active vi- brational modes in each of the following molecules. Note: You will have to use symmetry arguments to determine which vibrations result in a net change in the molecular dipole moment. (a) SO, (b) NO (o) NO, (d) so, 2 (e) HCN (f) co (g) H,O (h) CO2 (i) NO
List the different modes of dichloro methane. Which modes are IR active and which are Raman active. It would be grateful if you could help me answer this question in an essay format with a comprehensive three paragraph. Thanks in advance.
Which vibrational modes will be IR active? Briefly Explain. a. Symmetric N-O stretching (v,N-0) for the nitrate ion, NO,? b. Symmetric C-O stretching (v,C-o) for the carbonate ion, co,'? c. Antisymmetric C-C stretching (VasC-C) for allene: H2CCH2 н.с
Cl 2. (15 points) For the SFsCl molecule: What is the point group? What is the total number of degrees of fredom -b gl 216 What is the total number of vibrational modes?3 What is the reducible representation and what are the irreducible representations of the vibrational modes? Identify which modes are Raman active, IR active, both active or neither. Determine the reducible representation. Then, determine the coefficients of the irreducible representations.
Cl 2. (15 points) For the SFsCl molecule:...
Problem 1: Describe the vibrational normal modes of CO2 and H20, and then discuss which mode of each molecule is infrared active and which mode is inactive. (a) The four normal modes of CO2 v, (1388 cm-' v (2349 cm-) , (667 cm-' ,(667 cmt) (b) The three normal modes of H20 P, (3652 cm) (1595 cm) (3756 cm-)
o2 Predict the shape of the nitronium ion, NO, from its Lewis structure P1D2 Predict the shape of the nitr n the VSEPR model. It has one Raman active vibrational mode at 1400 cm strong IR active modes at 2360 and 540 cm , and one weak IR mode at 3735cm2. Are these data consistent with the predicted shape of the molecule? Aksign the vibrational wavenumbers to the modes from which they arise.
o2 Predict the shape of the nitronium...
A) Which vibrational mode is degenerate?
B) Draw all vibrational modes.
C) Calculate the zero point vibration energy of CO2
D) Calculate the energy of the lowest vibrationally excited
state
E) Calculate the ratio of the molecules in the lowest
vibrationally excited state and the vibrational ground state at
temperature of 300K
9. The vibrational frequencies of CO2 are given by Pond-667cm-l, Vsymmetricstretch
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you!
Essay 2: List the different modes of dichloro methane. Which modes are IR active and which are Raman active? (20 points)