What absorbs at 1602 cm⁻¹ in an FTIR spectrum?
A band near 1602 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 |
|---|---|---|---|
| Carbonyl (C=O) | 3 | 3 | 0.9 |
| Aromatic ring | 3 | 2 | 0.95 |
| Alkene (C=C) | 2 | 2 | 1.0 |
| Carboxyl (COOH) | 2 | 1 | 0.9 |
| C=n | 2 | 1 | 0.9 |
| C-O single bond | 1 | 1 | 0.9 |
| Carbohydrate | 1 | 1 | 0.8 |
| Lignin | 1 | 1 | 0.8 |
| C c single bond | 1 | 1 | 0.7 |
| Hydroxyl (O-H) | 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
-
信心 1.0
“Text: 'The peaks at 3486 and 1602 represent N-H ODA.'”
Mathakari 等 - 2009 - Surface and structural changes in polyimide by 100 DOI: 10.1016/j.surfcoat.2009.02.078 -
Alkene (C=C) 信心 1.0
“Explicit assignment: 'C=C (1602 cm-1)'”
Mujbil 等 - 2022 - Utilization of Metal Oxides Nanoparticles in Modul DOI: 10.3390/met12091413 -
Aromatic ring 信心 0.95
“Explicit assignment: typical aromatic skeletal vibration.”
Cui 等 - 2020 - Developing Further Versatility in Benzoxazine Synt DOI: 10.3390/polym12030694 -
C=n 信心 0.9
“Text states 'intense peak at 1602 due to the -C=N- stretching vibration'.”
Zhang 等 - 2008 - Synthesis and characterization of inclusion comple DOI: 10.1007/s10847-007-9379-z -
Carbonyl (C=O) 信心 0.9
“Amide carbonyl groups.”
Bashal 等 - 2022 - Bio-Based (Chitosan-ZnO) Nanocomposite Synthesis, DOI: 10.3390/polym14030386 -
Carbonyl (C=O) 信心 0.9
“Explicit assignment in text”
Khalil 等 - 2021 - Synthesis of Chitosan-La2O3 Nanocomposite and Its DOI: 10.3390/molecules26123689 -
Alkene (C=C) 信心 0.9
“C=C new peaks appeared”
Korolkov 等 - 2020 - Modification of PET Ion-Track Membranes by Silica DOI: 10.3390/membranes10110322 -
Carbonyl (C=O) 信心 0.9
“Text: 'bands at 1602-1621 cm-1 ... corresponding to stretching vibrations of C=O'.”
Kramarova 等 - 2021 - Synthesis, Structure and Electrochemical Propertie DOI: 10.3390/molecules26123548
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