What absorbs at 2877 cm⁻¹ in an FTIR spectrum?
A band near 2877 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
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Alkyl C-H | 5 | 5 | 0.9 |
| Methyl | 1 | 1 | 0.8 |
| Carboxyl (COOH) | 1 | 1 | 0.8 |
排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。
這些指派背後的文獻
-
Alkyl C-H 信心 0.9
“Asymmetric and symmetric stretching of C-H bonds”
Chien 等 - 2021 - Well-Dispersed Silver Nanoparticles on Cellulose F DOI: 10.3390/nano11030595 -
信心 0.9
“Explicit assignment in text.”
El-araby 等 - 2022 - Physicochemical Properties and Functional Characte DOI: 10.3390/molecules27238285 -
信心 0.9
“Text: 'absorption peak at 2877 due to sCH (symmetric)'”
Mendonca 等 - 2019 - Evaluation of Inter and Intraspecific Differences DOI: 10.13102/sociobiology.v66i3.4308 -
信心 0.9
“Explicit assignment in text.”
Zhou 等 - 2020 - Preparation and characterization of myristic acid DOI: 10.1038/s41598-020-67849-y -
信心 0.8
“Text: 'two peaks of IPETC at 2877 and 2978'”
Bu 等 - 2018 - Fundamental Flotation Behaviors of Chalcopyrite an DOI: 10.3390/min8030115 -
Alkyl C-H 信心 0.8
“Stretching of CH and stretching of C-COO”
Gupta 等 - 2018 - Effects of Amphiphilic Chitosan on Stereocomplexat DOI: 10.1038/s41598-018-22281-1 -
Alkyl C-H 信心 0.8
“Peak moved after liquefaction”
Jin 等 - 2021 - Preparation of Microspheres and Microfiber Membran DOI: 10.1002/app.39967 -
Alkyl C-H 信心 0.7
“Text: 'Absorption peaks at 2926 and 2877' and earlier context 'C-H et al. 2005' suggests C-H stretching.”
Paul 等 - 2018 - Development of chitosan based optimized edible coa DOI: 10.1007/s13197-018-3162-6
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