What absorbs at 3443 cm⁻¹ in an FTIR spectrum?
A band near 3443 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 | 0.9 |
| N h | 5 | 5 | 0.9 |
| Amide | 1 | 1 | 0.9 |
| Ammonium | 1 | 1 | 0.9 |
| Amine primary | 1 | 1 | 0.9 |
| Alkyl C-H | 1 | 0 | 0.8 |
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 0.9
“Explicit assignment in text.”
Hastuti 等 - 2020 - Synthesis of N '-(3-Trimethoxysilylpropyl)diethyle DOI: 10.1063/5.0008267 -
N h 信心 0.9
“Explicit assignment in text: 'peak at 3443 is attributed to the N-H stretching vibrations'”
Mu - 2005 - Polyaniline with two types of functional groups P DOI: 10.1002/macp.200400408 -
信心 0.9
“Explicit assignment: 'OeH which could be ascribed to vibrational mode, 3443 cm-1'”
Abd El-Kader 等 - 2021 - Morphological, structural and antibacterial behavi DOI: 10.1016/j.jmrt.2021.09.048 -
Amine primary 信心 0.9
“Explicit assignment in text.”
Amin 等 - 2023 - An Intragastric Delivery Device Employing FDM Tech DOI: 10.1208/s12249-023-02578-9 -
Ammonium 信心 0.9
“Text: 'band observed at 3443 is assigned as NH3+ asymmetric'”
Aneeba 等 - 2020 - Influence of most reactive inorganic cation in the DOI: 10.1016/j.sjbs.2020.07.018 -
Hydroxyl (O-H) 信心 0.9
“explicit assignment”
Barzic 等 - 2022 - Cellulose derivativebarium titanate composites wi DOI: 10.21203/rs.3.rs-467926/v1 -
N h 信心 0.9
“Explicit assignment in text.”
Chaudhary 等 - 2020 - Development of Biodegradable Agar-AgarGelatin-Bas DOI: 10.3390/biom10060939 -
信心 0.9
“Explicit assignment: 'attributed to isolated BA molecules'.”
Cozzolino 等 - 2023 - Segregation of Benzoic Acid in Polymer Crystalline DOI: 10.3390/polym15010177
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