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The following table lists infrared spectroscopy absorptions by frequency regions.
- NNR Solvent Shifts
Contributors and Attributions; The following table lists...
- Tanabe-Sugano Diagrams
Introduction. Tanabe-Sugano Diagrams are a form of...
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Chętnie wyświetlilibyśmy opis, ale witryna, którą oglądasz,...
- NNR Solvent Shifts
Table of Characteristic IR Absorptions m=medium, w=weak, s=strong, n=narrow, b=broad, sh=sharp ... 3640–3610 (s, sh) O–H stretch, free hydroxyl alcohols, phenols 3500–3200 (s,b) O–H stretch, H–bonded alcohols, phenols 3400–3250 (m) N–H stretch 1˚, 2˚ amines, amides 3300–2500 (m) O–H stretch carboxylic acids ... C–O stretch ...
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IR Tables, UCSC Table 1. Characteristic IR Absorption Peaks of Functional Groups* Vibration Position (cm-1) Intensity* Notes Alkanes C-H stretch 2990 – 2850 m to s Alkenes =C-H stretch 3100 – 3000 m C=C stretch 1680 – 1620 (sat.) 1650 – 1600 (conj.) w to m =C-H bend 995 – 685 s See Table 2 for detail Alkynes ≡C-H stretch 3310 –3200 s
This article will provide a table containing IR spectrum absorbtion frequency values and what they represent.
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.
The C=C stretching of an alkene only shows one band at ~1600 cm-1 (Figure 6.4b), while a benzene ring is indicated by two sharp absorption bands: one at ~1600 cm-1 and one at 1500–1430 cm-1 (see the example of the IR spectrum of ethyl benzene in Figure 6.4e).
