What absorbs at 3433 cm⁻¹ in an FTIR spectrum?
A band near 3433 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
가능한 작용기 할당
| 작용기 | 지원 사실 | 인용 출처 | 최고 신뢰도 |
|---|---|---|---|
| Hydroxyl (O-H) | 11 | 11 | 1.0 |
| N h | 2 | 2 | 0.9 |
| Water (H2O) | 1 | 0 | 0.95 |
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이 할당의 배경이 되는 문헌
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Hydroxyl (O-H) 신뢰도 1.0
“Absorption at 3433 cm-1 assigned to O-H stretching vibration.”
Suratman 等 - 2017 - Adsorption of CO2 by Alginate Immobilized Zeolite DOI: 10.1063/1.4978191 -
Hydroxyl (O-H) 신뢰도 1.0
“Explicit assignment: '3433 (broad strong, O-H)'”
Yildirim 等 - 2018 - DFT calculation, biological activity, anion sensin DOI: 10.2298/JSC171001009Y -
Hydroxyl (O-H) 신뢰도 0.9
“ascribed to stretching of O-H of adsorbed water”
Al-Qahtani 等 - 2022 - Structural, morphological, optical and electrochem DOI: 10.15251/JOR.2022.182.187 -
Hydroxyl (O-H) 신뢰도 0.9
“Valence vibrations of water molecule.”
Ayari 等 - 2022 - Synthesis of New Homopiperazine-1.4-Diium Tetrachl DOI: 10.3390/cryst12040486 -
Hydroxyl (O-H) 신뢰도 0.9
“Broad adsorption peak assigned to O-H”
Hina 等 - 2018 - Preparation and performance comparison of cellulos DOI: 10.1007/s10570-017-1560-y -
N h 신뢰도 0.9
“Characteristic N-H vibration region peak.”
Karolewicz 等 - 2016 - Physicochemical characterization and dissolution s DOI: 10.1515/acph-2016-0008 -
Hydroxyl (O-H) 신뢰도 0.9
“OH stretching”
Shabir 等 - 2017 - Preparation and characterization of pH sensitive c DOI: 10.1080/15685551.2017.1368116 -
Hydroxyl (O-H) 신뢰도 0.9
“Broad peak at 3433 cm-1 indicates -OH stretching.”
Velayutham 等 - 2022 - Photocatalytic and Antibacterial Activity of CoFe2 DOI: 10.3390/nano12203668
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