What absorbs at 861 cm⁻¹ in an FTIR spectrum?
A band near 861 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 | 4 | 4 | 1.0 |
| Amide | 3 | 3 | 1.0 |
| Methacrylate | 3 | 3 | 1.0 |
| Acetate | 3 | 3 | 1.0 |
| Silicon-oxygen (Si-O) | 2 | 2 | 1.0 |
| Ketone | 2 | 2 | 1.0 |
| Ester | 2 | 2 | 1.0 |
| Carboxyl (COOH) | 2 | 2 | 1.0 |
| Carbonyl (C=O) | 2 | 2 | 1.0 |
| Methoxy (OCH3) | 2 | 2 | 1.0 |
| C-O single bond | 2 | 2 | 1.0 |
| Aromatic ring | 2 | 2 | 1.0 |
| Secondary amine | 2 | 2 | 1.0 |
| C n single bond | 2 | 2 | 1.0 |
| Hydroxyl (O-H) | 2 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
| N-O bond | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Metal oxygen | 1 | 0 | 1.0 |
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
-
Acetate 信心 1.0
“The bands at about cm-1 cm-1 ∼1033 ∼1082 and are assigned to the coupling bands of the skeletal vibrational modes of cm-1 cm-1 ∼861 ∼881 C-O and C-C stretching vibration modes.”
Guo 等 - 2018 - Observation of conformational changes in ethylene DOI: 10.1063/1.4995975 -
Alkyl C-H 信心 1.0
“Moreover, the absorption weak absorption band at 861.22 was assigned to C-H bending of aromatic compounds.”
Facile Green Synthesis of Zinc Oxide Nanoparticles with Potential Synergistic Activity with Common Antifungal Agents against Multidrug-Resistant Candidal Strains DOI: 10.3390/cryst12060774 -
Alkyl C-H 信心 1.0
“Further bands at 861, 1261 and 1413 were assigned to CH vibra3”
Optical photothermal infrared spectroscopy with simultaneously acquired Raman spectroscopy for two-dimensional microplastic identification DOI: 10.1038/s41598-022-23318-2 -
N h 信心 1.0
“The other common overlapping ranges included 1712 (for water [31]), 1530 cm-1-1560 cm-1 (for coupled NH deformation and C-N stretching [32]), and near 861 cm-1”
Variety Identification of Orchids Using Fourier Transform Infrared Spectroscopy Combined with Stacked Sparse Auto-Encoder DOI: 10.3390/molecules24132506 -
Amide 信心 1.0
“-NHbond vibration peaks are at 1453 cm-1 (in-plane bending) and 861 cm-1 (out-of-plane cm-1 is the stretching vibration peak of the C-N bond and 1050 is the stretching vibration peak of the”
Inhibition of Poly(ethylenediaminetetraacetic acid-diethanolamine) on Deposition of Calcium Sulfate Crystal in Simulated Industrial Water DOI: 10.3390/cryst10060544 -
Aromatic ring 信心 1.0
“In addition to aromatic C-H bending, cm-1 protein and subsequently caused aggregation between unfoldthe peak at 861 may also indicate the presence of an ed proteins or dissociated low MW subunits via hydrophobic indolering, possibly by the”
Effect of maleylation on physicochemical and functional properties of rapeseed protein isolate DOI: 10.1007/s13197-016-2197-9) -
Acetate 信心 1.0
“2, OH bond scissoring, molecule substitution Xylose, Amygdalin 1726.95, 1646.78, 929.23, skeletal stretch, C=O, C-O stretch 861.14, 763.13 b-cyclodextrin, a-cyclodextrin, Yellow Native 3390.46, 2930.19, 2150.35, CH OH, C=O stretch, OH bend,”
Influence of physical and chemical modifications on granule size frequency distribution, fourier transform infrared (FTIR) spectra and adsorption isotherms of starch from four yam (Dioscorea spp.) cultivars DOI: 10.1007/s13197-021-05200-7 -
N-O bond 信心 1.0
“TOC, a new peak at 861 is seen possibly due to can interact with one or more HA molecules N-O stretching.”
Saxena 和 Brighu - 2020 - Optimized coagulation of humic acid and mineral tu DOI: 10.2166/ws.2020.141
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