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Physical Chemistry: Quanta, Matter, and Change

Physical Chemistry: Quanta, Matter, and Change (Second Edition)

Peter Atkins, Julio de Paula, and Ronald Friedman
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date: 18 May 2025

TOPIC 43 p. 405Vibrational spectroscopy: diatomic moleculeslocked

TOPIC 43 p. 405Vibrational spectroscopy: diatomic moleculeslocked

  • Peter Atkins, Peter AtkinsLincoln College
  • Julio de PaulaJulio de PaulaChemistry Lewis & Clark College
  • , and Ronald FriedmanRonald FriedmanIndiana University-Purdue University Fort Wayne

Abstract

Contents

Vibrational motion of diatomic molecules 405

Brief illustration 43.1: The vibrational frequency of a diatomic molecule 407

Infrared spectroscopy 407

Brief illustration 43.2: The gross selection rule for infrared spectroscopy 407

Anharmonicity 408

Example 43.1: Estimating an anharmonicity constant 409

43.4...

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