combination transition

https://doi.org/10.1351/goldbook.08580
Transition in which more than one vibration changes its degree of excitation; i.e., in which more than one vibrational quantum number changes.
Notes:
  1. Combination band results from a combination transition.
  2. Combination transitions are either sum or difference transitions, although some authors restrict them to sum transitions.
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 741 [Terms] [Paper]
Citation: 'combination transition' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08580 RIS BibTex EndNote
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