What absorbs at 3449 cm⁻¹ in an FTIR spectrum?
A band near 3449 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 7 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) | 3 | 3 | 0.9 |
| N h | 2 | 2 | 1.0 |
| Water (H2O) | 1 | 1 | 0.9 |
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
-
N h 信心 1.0
“Explicit assignment in text: '3449 and 3331 (N-H stretch)'”
Jheng 等 - 2017 - Supramolecular Interactions Induce Unexpectedly St DOI: 10.3390/polym9100503 -
N h 信心 0.9
“Explicit assignment: 'functional group of amine ... N-H stretching ... band at 3448.72'”
Azlim 等 - 2022 - Fabrication and characterization of a pH-sensitive DOI: 10.1002/fsn3.2680 -
Water (H2O) 信心 0.9
“attributed to existence of moisture in pristine Gr”
Dorniani 等 - 2016 - Graphene Oxide-Gallic Acid Nanodelivery System for DOI: 10.1186/s11671-016-1712-2 -
信心 0.9
“explicit assignment”
Kasar 和 Ahmaruzzaman - 2022 - Characterization of liquid products obtained from DOI: 10.1038/s41598-022-15371-8 -
Hydroxyl (O-H) 信心 0.9
“Text: 'The strong band at approximately 3449 cm-1 can be attributed to hydrogen-bonded O-H'”
Pan 等 - 2017 - Improvement Production of Hyaluronic Acid by Strep DOI: 10.1007/s12010-016-2326-y -
Hydroxyl (O-H) 信心 0.9
“Weak stretching band of OH groups on surface of CeO2 nanoparticles.”
Yazdani 等 - 2014 - The chemistry concerned with the sonochemical-assi DOI: 10.3906/kim-1306-33 -
Hydroxyl (O-H) 信心 0.8
“Assigned to O-H stretch absorption.”
Shkliarenko 等 - 2023 - Adsorptive Performance of Walnut Shells Modified w DOI: 10.3390/w15081536
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