What absorbs at 1226 cm⁻¹ in an FTIR spectrum?
A band near 1226 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 | 1 | 1 | 0.9 |
| Sulfate (SO4) | 1 | 1 | 0.9 |
| Carboxyl (COOH) | 1 | 1 | 0.8 |
| Amide | 1 | 1 | 0.8 |
| Hydroxyl (O-H) | 1 | 1 | 0.7 |
| Carbonyl (C=O) | 1 | 1 | 0.5 |
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
-
信心 1.0
“Same sentence as above.”
Naskar 等 - 2012 - Synthesis of ZSM-5 Zeolite Particles Using Trietha DOI: 10.1111/j.1551-2916.2011.05006.x -
Sulfate (SO4) 信心 0.9
“Text: 'peak between 1228 and 1226 indicated sulphate ester groups'.”
Kaewmanee 等 - 2019 - In vivo prebiotic properties of Ascophyllum nodosu DOI: 10.1007/s10811-019-01794-w -
Alkyl C-H 信心 0.9
“CH2 scissoring (bending) vibration.”
Dhulipalla 等 - 2023 - Development and Characterization of Coconut Oil Ol DOI: 10.5650/jos.ess22398 -
信心 0.9
“Explicit assignment: 1226 cm-1 for -Ar-C(=O)-Ar-.”
Li 等 - 2013 - Polycyclotriphosphazene Derivative Grafted and Nan DOI: 10.5012/jkcs.2013.57.5.625 -
信心 0.9
“signal due to the N-C-N bond”
Obando-Mora 等 - 2015 - Synthesis of a pHand ThermoResponsive Binary C DOI: 10.3390/coatings5040758 -
信心 0.9
“coupled C-N and C-O stretching of urethane group”
Rogulska - 2018 - Transparent sulfur-containing thermoplastic polyur DOI: 10.1007/s00289-017-2088-x -
Amide 信心 0.8
“Overlapping band assigned to both amide III and proteoglycans.”
Benitez-Amaro 等 - 2018 - Identification of new biophysical markers for path DOI: 10.1111/jcmm.13699 -
Carboxyl (COOH) 信心 0.8
“Explicit assignment: 'peak observed at 1226 would indicate the presence of carboxylic groups -COOH with its derivatives possibly such as carboxylates'”
Fito 等 - 2023 - Adsorption of methylene blue from textile industri DOI: 10.1038/s41598-023-32341-w
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