What absorbs at 3446 cm⁻¹ in an FTIR spectrum?
A band near 3446 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
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) | 6 | 5 | 0.95 |
| N h | 2 | 2 | 0.9 |
| Carbohydrate | 1 | 1 | 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
-
Carbohydrate 信心 1.0
“Explicit assignment in text: 'The broad band at 3446 corresponded to the O-H stretching vibration of cellulose'.”
Xu 等 - 2015 - Microstructural, Thermal, and Tensile Characteriza DOI: 10.1002/app.38197 -
Hydroxyl (O-H) 信心 0.95
“Explicit assignment in text.”
Arul 等 - 2023 - Detoxification of Toxic Organic Dye by Heteroatom- DOI: 10.3390/agronomy13010205 -
Hydroxyl (O-H) 信心 0.9
“Explicit assignment in text.”
Ramesh 等 - 2021 - Investigation of structural and optical properties DOI: 10.1016/j.matpr.2020.03.581 -
Hydroxyl (O-H) 信心 0.9
“strong broad O-H stretching in blank flocs”
Sakthisharmila 等 - 2017 - A characteristic study on generation and interacti DOI: 10.1016/j.molliq.2017.01.106 -
Hydroxyl (O-H) 信心 0.9
“Text: 'a wide peak appeared at 3446.1 cm-1 corresponding to'”
Huang 等 - 2019 - Effects of poly(ethylene glycol)-grafted graphene DOI: 10.1039/c9ra01060b -
N h 信心 0.9
“Text: '3446cm-1 attributes to -NH and cryoprotectants'”
Naghibzadeh 等 - 2010 - An Insight into the Interactions between alpha-Toc DOI: 10.1155/2010/818717 -
Water (H2O) 信心 0.9
“Text: 'bandsofadsorbedwaterareshownat 3445.79cm-1 1635.92cm-1'”
Van Cuong Nguyen 和 Quoc Hue Pho - 2014 - Preparation of Chitosan Coated Magnetic Hydroxyapa DOI: 10.1155/2014/273082 -
Hydroxyl (O-H) 信心 0.9
“Explicit: 'detected at 3446 was due to the stretching vibration of O-H and N-H'”
Yao 等 - 2023 - Facile Preparation and Adsorption Behavior Studies DOI: 10.21203/rs.3.rs-1889584/v1
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