An infrared spectroscopy correlation table (or table of infrared absorption frequencies) is a list of absorption peaks and frequencies, typically reported in wavenumber, for common types of molecular bonds and functional groups. [1][2] In physical and analytical chemistry, infrared spectroscopy (IR spectroscopy) is a technique used to identify c...

The following table lists infrared spectroscopy absorptions by frequency regions.

FT-IR Spectroscopy; IR Absorption Frequencies ; Typical IR Absorption Frequencies For Common Functional Groups. Bond Functional Group Frequency in cm −1 (Intensity*) C–H: Alkane: 3000–2850 (s) –CH 3: 1450 and 1375 (m)

Dec 16, 2021 · The broad shape of the absorption band results from the hydrogen bonding of the OH groups between molecules. The OH bond of alcohol group usually has absorption in the range of 3200-3600 cm-1, while the OH bond of carboxylic acid group occurs at about 2500-3300 cm-1 (Figure 6.4a and Figure 6.4c).

Table of Characteristic IR Absorptions m=medium, w=weak, s=strong, n=narrow, b=broad, sh=sharp frequency, cm –1 bond functional group 3640–3610 (s, sh) O–H stretch, free hydroxyl alcohols, phenols

You can search for FTIR functional groups by peak position, group, or class quickly from the table.

May 3, 2023 · The FTIR spectra of the coals show the presence of stretching vibrations of -OH bonds, aliph. -CH, -CH2 and -CH3 absorptions, C=C and -CH of arom. structure, and C=O stretching vibrations of carbonyl groups.

between Si—OH and C—OH: The free Si—OH band at 3390 cm is at a sig-nificantly higher frequency than the free C—OH band. Si—OH compounds show absorption, often a single broad band, in the range 950-810 cm . This band is observed after D 2 …

This article will provide a table containing the IR spectrum frequency values and the molecules they represent. What is a Spectrophotometer? List of stretching vibrations in descending order of frequency. Bending vibrations in descending order of frequency.

Nov 15, 2007 · Our study of olivines from Canadian kimberlites shows that the application of FTIR spectroscopy significantly improves the reliability of olivine as a kimberlite indicator mineral (KIM). We have developed an algorithm that yields the water concentration and the normalized intensity of the OH IR absorption band at 3572 cm −1 from unpolished ...