What absorbs at 2851 cm⁻¹ in an FTIR spectrum?
A band near 2851 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 8 cited sources
Возможные назначения функциональных групп
| Функциональная группа | Подтверждающие факты | Цитируемые источники | Максимальная достоверность |
|---|---|---|---|
| Alkyl C-H | 14 | 12 | 1,0 |
| Lipid | 1 | 1 | 0,9 |
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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Alkyl C-H достоверность 1,0
“Attributed to -CH2 symmetric stretching.”
Li 等 - 2017 - Understanding Hydrothermal Dechlorination of PVC b DOI: 10.3390/app7030256 -
Alkyl C-H достоверность 1,0
“Explicit assignment in text.”
AlDayyat 等 - 2021 - Pyrolysis of Solid Waste for Bio-Oil and Char Prod DOI: 10.3390/en14133861 -
достоверность 1,0
“Explicit assignment in text.”
Mandal 和 Das - 2018 - Biodegradation of perylene and benzo [ghi] perylen DOI: 10.22438/jeb/39/1/MRN-540 -
Alkyl C-H достоверность 1,0
“Text: 'peaks at 2920 and 2851 are attributed to the asymmetrical and symmetrical stretching bands of CH2'”
Tang 等 - 2022 - Discrimination and Prediction of Lonicerae japonic DOI: 10.3390/molecules27144640 -
Alkyl C-H достоверность 1,0
“explicit assignment”
Zhang 等 - 2018 - Selection and evaluation of microorganisms for bio DOI: 10.1007/s13205-018-1329-5 -
Alkyl C-H достоверность 1,0
“Explicit assignment: 'peaks at 2921 and 2851 were attributed to C-H stretching vibration of -CH3 and -CH2-'.”
Zhang 等 - 2020 - Superhydrophobic Polypyrrole-Coated Cigarette Filt DOI: 10.3390/app10061985 -
достоверность 0,9
“Text: 'two bands at 2851 and 2927 that confirmed presence of'”
Chandekar 和 Kant - 2018 - Size-strain analysis and elastic properties of CoF DOI: 10.1016/j.molstruc.2017.09.104 -
Alkyl C-H достоверность 0,9
“Explicit assignment in text: 'peaks at 2921.13 cm-1 and 2851.03 cm-1 were attributed to the C-H stretching vibration'”
Peng 等 - 2017 - Study on the Effect of Fe3+ on Zircon Flotation Se DOI: 10.3390/min7070108
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