What absorbs at 2987 cm⁻¹ in an FTIR spectrum?
A band near 2987 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 6 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 | 3 | 3 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
| Carbohydrate | 1 | 1 | 0.8 |
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
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Hydroxyl (O-H) 信頼度 1.0
“The peaks at 2987, cm-1 3150, and 3203 could not be confidently assigned but may O-H possibly be the result of stretching in NOH groups that”
Pena 等 - 2004 - Identification of surface species on titania-suppo DOI: 10.1021/jp0313122 -
Alkyl C-H 信頼度 1.0
“A small peak observed at 2987.2 is assigned to the vibrations of the stretching vibration of -CH and -CH groups indicating the presence of a small”
CO Oxidation Efficiency and Hysteresis Behavior over Mesoporous Pd/SiO2 Catalyst DOI: 10.3390/catal -
Alkyl C-H 信頼度 1.0
“The peak at 2987 cm-1 identifies asymmetric stretching of the methyl group (C-H).”
Development, characterization and In-vitro evaluation of guar gum based new polymeric matrices for controlled delivery using metformin HCl as model drug DOI: 10.1371/journal.pone.0271623 -
Alkyl C-H 信頼度 1.0
“The infrared spectrum displayed doses 5, 10, 15, 20 and 25 kGy showed the main characan intense absorption peak at the wave numbers 3363 and teristic absorption bands of BCNF with slight shifts of the cm-1 which attributed to stretching val”
Biosynthesis of bacterial cellulose nanofibrils in black tea media by a symbiotic culture of bacteria and yeast isolated from commercial kombucha beverage DOI: 10.1007/s11274-022-03485-0 -
Hydroxyl (O-H) 信頼度 0.9
“OH- functional group at 2987 cm-1”
Caracterization and Compressive Strength of Biocomposite Hydroxyapatite-Borosilicate with Hight Temperature Sintering DOI: 10.1051/matecconf -
Carbohydrate 信頼度 0.8
“Hydrogen bond stretching of CH and CH of cellulose.”
Enhanced arsenic (iii) adsorption from aqueous solution by magnetic pine cone biomass DOI: 10.1016/j.matchemphys.2018.09.067
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