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IR Frequency Region: Fingerprint Region

IR Frequency Region: Fingerprint Region

IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the C=O, C=N, and C=C occur between 1600–1850 cm−1.
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Related Experiment Video

Updated: Jun 12, 2026

Neuronavigation-guided Repetitive Transcranial Magnetic Stimulation for Aphasia

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Published on: May 6, 2016

Erratum to: Deep learning-based MR fingerprinting ASL ReconStruction (DeepMARS) (Magn Reson Med. 2020; 84:1024-1034)

Qiang Zhang¹, Pan Su², Zhensen Chen¹

¹School of Medicine, Center for Biomedical Imaging Research, Tsinghua University, Beijing, China.

Magnetic Resonance in Medicine

|December 9, 2022

Summary

No abstract available in PubMed .

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