In the fourth positive group of the CO electron spectrum,several values of the centers of the following vibrationbands (in wave number) have been measured:Banda (v'-v) 3-0 2-0 1-0 0-0 0-1v(cm¹) 69088 67675 66231 64703 62602Indicate where the center of the 3 - 1 band will occur approximately (in cm³¹):1. 64800 2. 65530 3.66200 4.66987

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Answered: In the fourth positive group of the CO…

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter20: Molecular Spectroscopy And Photochemistry

Section: Chapter Questions

Problem 14P

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Determine the number of total degrees of freedom and the number of vibrational degrees of freedom for the following molecules. a Hydrogen fluoride, HF b Hydrogen telluride, H2Te c Buckminsterfullerene, C60 d Phenylalanine, C6H5CH2CHNH2COOH e Naphthalene, C10H8 f The linear isomer of the C4 radical g The bent isomer of C4 radical.
Determine the number of total degrees of freedom and the number of vibrational degrees of freedom for the following species. a Hydrogen sulfide, H2S b Carbonyl sulfide, OCS c The sulfate ion, SO42 d Phosgene, COCl2 e Elemental chlorine, Cl2 f A linear molecule having 20 atoms g A nonlinear molecule having 20 atoms
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We know how to determine the total number of vibrational modes for a molecule with a given number of atoms. If the stretching frequencies you identified are the only ones appearing in the diagnostic region, and each bond contributes one stretching mode, how many additional vibrational modes must be represented in the overlapping signals in the fingerprint region for each of these molecules?
If in an electronic spectrum we have the data of the central wave numbers corresponding to the transitions (v' - v): 3-0, 2-0, 1-0, 0-0, 0-1, 0-2. How could we obtain the fundamental vibration band?
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Banda (v'-v) 3-0 2-0 1-0 0-0 0-1 v(cm¹) 69088 67675 66231 64703 62602 In the fourth positive group of the CO electron spectrum, several values of the centers of the following vibration bands (in wave number) have been measured: Indicate where the center of the 3 - 1 band will occur approximately (in cm³¹): 1. 64800 2.65530 3. 66200 4.66987
8 Order the transitions of a vibrational-rotational spectrum by their energy change. Use figure 9 on page 474. v=1 v=0 ▬▬▬ P Highest PR branch: (v=0, J = 1) to (v=1, J =2) PR branch: (v=0, J-0) to (v=1,J=1) Frequency, v PP branch: (v=0, J = 2) to (v=1, J =1) Lowest FP branch: (v=0, J = 1) to (v=1, J =0) Q Qbranch: (v=0, J = 0) to (v=1, J =0) R
If the spacings between adjacent vibrational features in a photoelectron spectroscopy experiment decrease, changing by a factor of 1/2, when you deuterate the molecule being ionized, is it more likely that the orbital from which you are ejecting an electron is from a nonbonding orbital, a p orbital localized on a C-C or C-O bond, or a s orbital localized on a C-H bond? Explain.

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