What absorbs at 1186 cm⁻¹ in an FTIR spectrum?
A band near 1186 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
Möjliga identifieringar av funktionella grupper
| Funktionell grupp | Stödjande fakta | Citerade källor | Högsta förtroende |
|---|---|---|---|
| Lignin | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Oxygen heterocycle | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Carbohydrate | 1 | 0 | 1,0 |
Rankingen speglar ackumulerade litteraturbevis, inte en enda auktoritativ regel. Bekräfta alltid mot din provkontext.
Litteratur bakom dessa identifieringar
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C-O single bond förtroende 1,0
“LLM confirmed rule peak-group candidate”
Muljana 等 - 2022 - Cross-Linking of Polypropylene via the Diels-Alder DOI: 10.3390/polym14061176 -
Hydroxyl (O-H) förtroende 1,0
“the In-O stretching vibration modes are usually observed in the region of 800-300 We T cm-1 can also recognize absorption band at 1186 related to In-O-H bending vibration [34].”
Yahia 等 - 2019 - Structural, optical, morphological and electrical DOI: 10.1016/j.surfin.2018.12.012 -
Alkene (C=C) förtroende 1,0
“In the FTIR spectrum of rGO-TEPA, few representative peaks were identified at 1654, In the FTIR spectrum of rGO-TEPA, few representative peaks were identified at 1654, 1561, 1443, and 1186 cm-1, which can be attributed to the C=C stretching”
Cojocaru 等 - 2022 - Electrospun Nanofibrous Membranes Based on Citric DOI: 10.3390/polym14020294 -
Lignin förtroende 1,0
“the inner finger-print average (1586-1186 To determine the ratio for the lignin peak, the average of the inner fingerprint range of To determine the ratio for the lignin peak, the average of the inner fingerprint range cm-1 cm-1 spectra fro”
Analysis of the Natural Aging of Silver Fir (Abies alba Mill.) Structural Timber Using Dendrochronological, Colorimetric, Microscopic and FTIR Techniques DOI: 10.3390/f14071363
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