This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.

When analyzing an IR spectrum, it is helpful to overlay the diagram below onto the spectrum with our mind to help recognize functional groups. Figure 1. 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 ...

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...

2018年7月1日 · Figure 2: The IR spectrum of the saturated ester ethyl acetate. Note the Rule of Three peaks labeled A, B, and C. Ethyl acetate is made from acetic acid and ethyl alcohol, one could in theory make it by reacting vinegar with vodka.

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Infrared spectroscopy is the study of the interaction of infrared light with matter. The fundamental measurement obtained in infrared spectroscopy is an infrared spectrum, which is a plot of measured infrared intensity versus wavelength (or frequency) of light.

2022年9月5日 · Fourier Transform Infrared Spectroscopy of Metal Ligand Complexes. The infrared (IR) range of the electromagnetic spectrum is usually divided into three regions: The far-infrared is always used for rotational spectroscopy, with …

Go To: Top, IR Spectrum, References. The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment.

Spectra of ethyl acetate 1 H NMR spectrum Triplet d ~ 1.3 ppm ; relative intensity 3; assigned to CH 3 part of ethyl group, triplet splitting due to neighbouring CH 2 .

2024年7月28日 · By shining infrared radiation through a sample, we can uncover the unique vibrational fingerprint of its functional groups, the building blocks of molecules. In this blog post, we embark on a journey to explore the IR spectrum of ethyl acetate, a common solvent, and unravel the captivating story of its functional group identification.