What absorbs at 3381 cm⁻¹ in an FTIR spectrum?
A band near 3381 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
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Hydroxyl (O-H) | 4 | 4 | 0.95 |
| N h | 1 | 1 | 0.9 |
| Oxygen heterocycle | 1 | 1 | 0.7 |
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
-
Hydroxyl (O-H) 信心 0.95
“Assigned to stretching vibration absorption of -OH”
Wang 等 - 2018 - Developing Effective Separation of Feldspar and Qu DOI: 10.3390/min8040149 -
Hydroxyl (O-H) 信心 0.9
“Broad hydroxyl band in WCO-p”
Kamarulzaman 和 Tahir - 2017 - The Effect of Isocyanate Structure on Ionic Conduc DOI: 10.1063/1.5002441 -
Hydroxyl (O-H) 信心 0.9
“Text: 'The peak 3381 indicated the existence of free O-H stretching vibration of O-H groups'.”
Ayu 等 - 2020 - The Production of Nanocrystalline Cel close From O DOI: 10.1063/5.0015667 -
N h 信心 0.9
“Text: 'scaled value at cm-1 3550 is assigned to the asymmetric stretching vibration NH which is observed in IR at 3381'”
Sreedevi 等 - 2023 - GROWTH, CHARACTERIZATION AND CHEMICAL COMPUTATIONS DOI: 10.4314/bcse.v37i4.18 -
Hydroxyl (O-H) 信心 0.8
“Peak at 3380.84 related to hydroxyl group.”
Suhalim 等 - 2023 - Impact of Silver-Decorated Graphene Oxide (Ag-GO) DOI: 10.3390/membranes13060602 -
Oxygen heterocycle 信心 0.7
“Absorbance at 3640 and 3381 cm-1 attributed to epoxy.”
Jollands 等 - 2021 - A combined Fourier transform infrared and Cr K-edg DOI: 10.5194/ejm-33-113-2021
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