What absorbs at 1798 cm⁻¹ in an FTIR spectrum?
A band near 1798 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 4 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 |
|---|---|---|---|
| C c single bond | 1 | 1 | 1.0 |
| Acetyl | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 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
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Carbonyl (C=O) 信心 1.0
“The Folpet spectrum has three absorption bands, at 1724, 1271cm-1 Folpet band at also could not be used be1798cm-1, 1757 and due to carbonyl in-phase and”
Quintas 等 - 2003 - Simultaneous determination of Folpet and Metalaxyl DOI: 10.1016/S0003-2670(02)01596-9 -
Hydroxyl (O-H) 信心 1.0
“cm-1 found: at 3435, 2182, 2874 and 2515 (anti-symmetric and symmetric O-H stretches), and cm-1 cm-1 at 1798 (HOH bending).”
Radulovic 等 - 2017 - The Chemometric Study of Limestone Physico-chemica DOI: 10.2298/SOS1703247R -
Acetate 信心 1.0
“For the HT-WCS, peaks at 1798 are attributed to C O telescopic vibration or the acetyl group.”
Chen 等 - 2020 - Properties of Wood Ceramics Prepared from Thermo-M DOI: 10.3390/f11111204 -
C c single bond 信心 1.0
“the region of is dominated by the cm-1 C-C sp3 characteristic band of 1798 of the diamond ATR crystal.”
Krivoshein 等 - 2022 - FTIR Photoacoustic and ATR Spectroscopies of Soils DOI: 10.1021/acsomega.1c05702
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