This question pertains to rotational spectroscopy.Which of the following molecules would have a pure rotational spectrum and why? HCl, N2O, O3, SF4What information is obtained from the rotational spectrum of a diatomic molecule and how can it be used to determine the bond length of a diatomic molecule?What is the selection rule for rotational spectroscopy?The rotational constant of 127I35Cl is 3.424 GHz. Calculate the ICl bond length.

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This question pertains to rotational spectroscopy. Which of the following molecules would have a pure rotational spectrum and why? HCl, N2O, O3, SF4

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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Photoelectron Spectroscopy

Photoelectron spectroscopy (PES) is a part of experimental chemistry. It is a technique used in laboratories that involves projecting intense beams of radiation on a sample element. In response, the element ejects electrons for which the relative energies are measured.

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This question pertains to rotational spectroscopy.
1. Which of the following molecules would have a pure rotational spectrum and why? HCl, N₂O, O₃, SF₄
2. What information is obtained from the rotational spectrum of a diatomic molecule and how can it be used to determine the bond length of a diatomic molecule?
3. What is the selection rule for rotational spectroscopy?
4. The rotational constant of ¹²⁷I³⁵Cl is 3.424 GHz. Calculate the ICl bond length.

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