13. 3: Interpreting Infrared Spectra - Chemistry LibreTexts Figure 13 3 3: The four regions of the infrared spectrum: single bonds to hydrogen, triple bonds, double bonds, and fingerprint The region from 4000 to 2500 cm –1 corresponds to absorptions caused by N–H, C–H, and O–H single-bond stretching motions
Infrared Spectrum Wavelengths - NLIR Infrared (IR) wavelengths are broadly categorized into near-infrared (NIR), mid-infrared (MIR), and far-infrared (FIR) regions, each with unique characteristics and applications
12. 7 Interpreting Infrared Spectra – Organic Chemistry: A Tenth Edition . . . Figure 12 22 The four regions of the infrared spectrum: single bonds to hydrogen, triple bonds, double bonds, and fingerprint The region from 4000 to 2500 cm – 1 corresponds to absorptions caused by N–H, C–H, and O–H single-bond stretching motions
Infrared spectroscopy - Wikipedia An IR spectrum can be visualized in a graph of infrared light absorbance (or transmittance) on the vertical axis vs frequency, wavenumber or wavelength on the horizontal axis
Interpreting Infrared Spectra | MCC Organic Chemistry Group frequency and fingerprint regions of the mid-infrared spectrum The region of the infrared spectrum from 1200 to 700 cm -1 is called the fingerprint region This region is notable for the large number of infrared bands that are found there
12. 7 Interpreting Infrared Spectra - Organic Chemistry | OpenStax Carbonyl groups generally absorb in the range 1680 to 1750 cm –1, and alkene stretching normally occurs in the narrow range of 1640 to 1680 cm –1 The region below 1500 cm –1 is the fingerprint portion of the IR spectrum