What absorbs at 2978 cm⁻¹ in an FTIR spectrum?
A band near 2978 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
可能性のある官能基アサイン
| 官能基 | 裏付け事実 | 引用元 | 最高信頼度 |
|---|---|---|---|
| Alkyl C-H | 6 | 6 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
ランキングは蓄積された文献証拠を反映しており、単一の権威あるルールではありません。常にサンプルのコンテキストと照合して確認してください。
これらのアサインの根拠となる文献
-
Alkyl C-H 信頼度 1.0
“The bands at 3046 may be assigned to the OH group, while the cm-1 weak bands at 2978 and 2871 could be due to the C-H stretching vibrations which are”
Synthesis, crystal structures, quantum chemical studies and corrosion inhibition potentials of 4-(((4-ethylphenyl)imino)methyl)phenol and (E)-4-((naphthalen-2-ylimino) methyl) phenol Schiff bases DOI: 10.1016/j.molstruc.2017.06.104 -
Alkyl C-H 信頼度 1.0
“They (C-H stretching reported that the frequencies of allicin in FTIR spectra were 3083 cm-1 2), 2978 cm-1 (C-H stretching symmetric of =CH 2),1634 cm-1 (a medium asymmetric of =CH”
Tasci 等 - 2016 - Determination of alliin and allicin in the plant o DOI: 10.17660/ActaHortic.2016.1143.19 -
Alkyl C-H 信頼度 1.0
“(cid:0)1 peak at 2978 cm is assigned to the CH stretching The transport of the produced smoke out of the vibrations of the CH group [30,31].”
Adeniyi 等 - 2022 - Evaluating the nature of captured exhaust soot fro DOI: 10.24200/sci.2021.57008.5017 -
Alkyl C-H 信頼度 1.0
“cm-1 The vibrational peaks at 2978 assigned to -CH symmetric and asymmetric vibrations of typical polysachaaride have been disappeared on adding the salt.”
Helen 等 - 2023 - Amelioration of ionic conductivity (303 K) with th DOI: 10.21203/rs.3.rs-1557220/v1 -
Alkyl C-H 信頼度 1.0
“LLM confirmed rule peak-group candidate”
Jaleh 等 - 2015 - Characteristics of PVDF Membranes Irradiated by El DOI: 10.3390/membranes5010001 -
Hydroxyl (O-H) 信頼度 1.0
“also the case for pure EMIMOAc in which there was a strong 3070cm-1 ]O-H 2800 and the region compared to autopeak at 2978cm-1 2900 a reduced prominence of the peak.”
Kathirgamanathan 等 - 2015 - Two-Dimensional FTIR as a Tool to Study the Chemic DOI: 10.1155/2015/958653 -
Alkyl C-H 信頼度 1.0
“between 2978 and 2956 The band related to the asymmetric stretching vibrations of the cm-1 CH aliphatic groups exhibits a maximum in the range from 2930 to 2922 in the analyzed 2 cm-1, samples.”
Komorek - 2016 - INTERNAL STRUCTURE OF VITRIINTITE AND SPORINITE IN DOI: 10.1515/amsc-2016-0050 -
Aromatic ring 信頼度 1.0
“It is interesting to note the C\\H cm-1 bands at 2978 and 2933 absence of signal for aromatic protons when aromatic rings are correspond to asymmetric stretch actually constituents of lignin structure.”
Comprehensive characterization of industrial wastewaters using EEM fluorescence, FT-IR and 1H NMR techniques DOI: 10.1016/j.scitotenv.2021.150417
このバンドを持つスペクトルがありますか？
FTIRスペクトルをアップロードすると、数秒で完全な解釈レポート（文献引用付きピークアサイン、ライブラリマッチ、信頼度評価付き証拠チェーン）を取得できます。
スペクトルを解釈