What absorbs at 2700 cm⁻¹ in an FTIR spectrum?
A band near 2700 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 5 cited sources
Possíveis atribuições de grupos funcionais
| Grupo funcional | Fatos de suporte | Fontes citadas | Maior confiança |
|---|---|---|---|
| Alkyl C-H | 2 | 2 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Metal oxygen | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Water (H2O) | 1 | 0 | 1,0 |
A classificação reflete a evidência acumulada da literatura, não uma única regra autoritária. Sempre confirme com o contexto da sua amostra.
Literatura por trás destas atribuições
-
Hydroxyl (O-H) confiança 1,0
“In several studies, the FT-IR spectra of plant extracts x-ray spectroscopy (EDAX), scanning electron microscopy (SEM), cm(cid:0) 1 (O-H showed the presence of peaks at around 2700 stretching) and transmission electron microscopy (TEM) and x”
Jegadeesan 等 - 2019 - Green synthesis of iron oxide nanoparticles using DOI: 10.1016/j.bcab.2019.101354 -
Metal oxygen confiança 1,0
“The peaks observed at 2700 are ascribed to Cd-O bending vibration and the peak SEM micrograph of Cd-doped ZnO powder is clearly shown in Fig.”
Koutavarapu 等 - 2021 - Structural, optical and magnetic properties of Cd DOI: 10.1007/s10854-021-05795-9 -
Alkyl C-H confiança 1,0
“LLM confirmed rule peak-group candidate”
Impact of high microwave power on hydrogen impurity trapping in nanocrystalline diamond films grown with simultaneous nitrogen and oxygen addition into methane/hydrogen plasma DOI: 10.1016/j.jcrysgro.2015.10.037 -
Alkyl C-H confiança 1,0
“2700 cm-1 acid respectively, C-H stretching at 2950 and 3100 for Spectroscopic Studies the aliphatic and aromatic carbons respectively.”
Ugwu 等 - 2023 - Synthesis, Structure, Hirshfeld Surface Analysis, DOI: 10.1007/s10870-023-00978-0 -
Aromatic ring confiança 1,0
“LLM confirmed rule peak-group candidate”
Evaluation of Properties and Micro-Characteristics of Waste Polyurethane/Styrene-Butadiene-Styrene Composite Modified Asphalt DOI: 10.3390/polym13142249
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