What absorbs at 3283 cm⁻¹ in an FTIR spectrum?
A band near 3283 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 |
|---|---|---|---|
| N h | 3 | 3 | 0.95 |
| Amide | 2 | 2 | 0.9 |
| Hydroxyl (O-H) | 2 | 2 | 0.9 |
| Carboxyl (COOH) | 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 0.95
“Explicit: 'N-H stretch peaks at 3354 and 3283'”
Leewis 等 - 2006 - Ammonia adsorption and decomposition on silica sup DOI: 10.1016/j.apsusc.2005.12.115 -
Carboxyl (COOH) 信心 0.9
“Explicit assignment: 'H-bounded: 3283 cm-1'”
Cocean 等 - 2021 - Study of Physico-Chemical Interactions during the DOI: 10.3390/nano11102560 -
Amide 信心 0.9
“Normalized with respect to amide A band at 3283 cm-1.”
Dogan 等 - 2021 - CoronaVac (Sinovac) COVID-19 vaccine-induced molec DOI: 10.3906/biy-2105-65 -
Hydroxyl (O-H) 信心 0.9
“Explicitly assigned as O-H stretching vibration.”
Li 等 - 2022 - Characterization and Application in Packaging Grea DOI: 10.3390/polym14153199 -
Amide 信心 0.9
“Text: 'Amide A peak at 3283 is assigned to the stretching vibrations N-H bonds'”
Sanchez Ramirez 等 - 2021 - Design of Asymmetric Nanofibers-Membranes Based on DOI: 10.3390/jfb12040076 -
信心 0.9
“Snippet: 'peak at 3283.3130 cm-1, which is thought to be due to secondary aliphatic amine'.”
Wasay 等 - 2022 - Developed meloxicam loaded microparticles for colo DOI: 10.1371/journal.pone.0267306 -
N h 信心 0.8
“NH stretching and peptide bonds”
Chaber 等 - 2017 - Application of infrared spectroscopy in the identi DOI: 10.1016/j.infrared.2017.05.006 -
Hydroxyl (O-H) 信心 0.8
“Peak assigned to -OH stretching based on text mentioning -OH region 4000-2500 cm-1 and peak at 3282.82 cm-1.”
Rotich 等 - 2022 - FT-IR Analysis of Beta vulgaris Peels and Pomace D DOI: 10.1155/2022/2233414
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