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IR Spectroscopy: Molecular Vibration Overview01:24

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When Infrared (IR) radiation passes through a covalently bonded molecule, the bonds transition from lower to higher vibrational levels. The fundamental vibrational motions that result in infrared absorption can be classified as stretching or bending vibrations.
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The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
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Updated: Jun 14, 2025

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Reference-free dual-comb spectroscopy with inbuilt coherence: publisher's note.

Mikhail Roiz, Santeri Larnimaa, Touko Uotila

    Optics Letters
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    Summary

    This note corrects a previously published article in Optics Letters. The correction ensures accuracy in the scientific record for optics research.

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    Area of Science:

    • Optics and Photonics

    Background:

    • Accurate scientific records are crucial for research integrity.
    • Previous publication requires correction.

    Purpose of the Study:

    • To provide a correction to a published article.
    • To ensure the accuracy of the scientific literature.

    Main Methods:

    • Publisher's review and verification process.
    • Issuance of a formal publisher's note.

    Main Results:

    • A correction has been issued for Opt. Lett. 49, 2473 (2024).
    • The Digital Object Identifier (DOI) for the corrected article is 10.1364/OL.521866.

    Conclusions:

    • The scientific record is now updated with the correct information.
    • This ensures continued reliability in optics research.