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
Возможные назначения функциональных групп
| Функциональная группа | Подтверждающие факты | Цитируемые источники | Максимальная достоверность |
|---|---|---|---|
| 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 |
Ранжирование отражает накопленные литературные данные, а не единственное авторитетное правило. Всегда проверяйте в контексте вашего образца.
Литература, лежащая в основе этих назначений
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C-O single bond достоверность 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) достоверность 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) достоверность 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 достоверность 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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