What absorbs at 1476 cm⁻¹ in an FTIR spectrum?
A band near 1476 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 4 cited sources
Mga posibleng pagtatalaga ng functional-group
| Grupong functional | Mga sumusuportang katotohanan | Mga nasiping sanggunian | Pinakamataas na kumpiyansa |
|---|---|---|---|
| Alkyl C-H | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Nitrogen heterocycle | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| S s | 1 | 0 | 1.0 |
Ang pagraranggo ay sumasalamin sa naipon na ebidensya ng literatura, hindi isang solong awtoritatibong tuntunin. Palaging kumpirmahin laban sa konteksto ng iyong sample.
Literatura sa likod ng mga pagtatalagang ito
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Aromatic ring kumpiyansa 1.0
“The vibration band at 1576 cor6 responds to the quinoid ring units whereas lower frequency cm21 vibration band at 1476 depicts the presence of benzenoid ring units.”
Chutia 和 Kumar - 2015 - Electrical Transport and Morphological Studies of DOI: 10.1002/pen.23967 -
Nitrogen heterocycle kumpiyansa 1.0
“-1 (b) NiO cm(cid:2)1 asymmetric stretching vibration at 1476 and ring 1559cm(cid:2)1 -2 stretching mode of pyrrole ring at [16].”
Nalage 等 - 2013 - Polypyrrole-NiO hybrid nanocomposite Structural, DOI: 10.1016/j.measurement.2013.06.049 -
Ring structure kumpiyansa 1.0
“cm-1 (asymmetric C=O stretching vibration of carboxylate), 1555 (Py ring stretching cm-1 cm-1 vibration), 1476 (Py ring stretching and C-H in-plane stretching vibration), 1319 cm-1 cm-1 (C-N in-plane deformation), 1201 (Py ring vibration),”
New conductive copolymer membranes via track-etched PC templates for biological media ultra-filtration DOI: 10.1016/j.nimb.2007.08.066 -
Alkyl C-H kumpiyansa 1.0
“The adsorption band near 1476 cm-1 is assigned to the -CH2 bending (or scissor) mode.”
Liu 等 - 2020 - Study of the Air-Entraining Behavior Based on the DOI: 10.3390/ma13163514
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