What absorbs at 3036 cm⁻¹ in an FTIR spectrum?
A band near 3036 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 6 cited sources
Quick answer
A band near 3036 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.
可能性のある官能基アサイン
| 官能基 | 裏付け事実 | 引用元 | 最高信頼度 |
|---|---|---|---|
| Alkyl C-H | 4 | 4 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
ランキングは蓄積された文献証拠を反映しており、単一の権威あるルールではありません。常にサンプルのコンテキストと照合して確認してください。
Possible materials
| 素材 | 補助ピーク | Overlapping groups | 引用元 |
|---|---|---|---|
| cellulose | 3036, 1735, 1650 | Alkyl C-H | 1 |
| hemicellulose | 3036, 1730, 897 | Alkyl C-H | 1 |
| lignin | 3036, 1035, 1510 | Alkyl C-H | 1 |
| biomass | 3036, 1082, 1282 | Alkyl C-H | 1 |
| zeolite | 3036, 1013, 1245 | Alkyl C-H, N h | 1 |
Materials are shown only when the same literature pool supports this band and at least one additional characteristic peak.
Spectrum logic
This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 3036 cm⁻¹ is usually not enough for material identification by itself.
Real-world usage
This type of query is common in polymer identification, unknown plastic screening, QC troubleshooting, recycled-material verification, and literature-backed peak assignment review.
Common mistakes
- Treating one isolated band as proof of a material without checking at least one or two supporting peaks.
- Ignoring overlap: multiple functional groups can contribute near the same wavenumber.
- Skipping validation when additives, blends, oxidation, or contamination may distort the spectrum.
Verification advice
When ambiguity remains, validate the hypothesis with DSC, GC-MS, or TGA, especially for blends, degraded samples, and filled polymers.
これらのアサインの根拠となる文献
-
信頼度 1.0
“The Using another method, the equation given by Pöter NH+ 3036cm-1 band at is related to a combination of symmetric et al.”
Abdel-Hak 等 - 2020 - In situ micro-FTIR spectroscopic investigations of DOI: 10.5194/ejm-32-469-2020 -
Alkyl C-H 信頼度 1.0
“For Benzene the peak is at 3035.86 BA shows two C-H stretching vibration bands at cm-1 3026.06 & 2911.54 due to the aromatic C-H and CH groups.”
Hema 等 - 2022 - Structural and vibrational study of molecular inte DOI: 10.21203/rs.3.rs-649250/v1 -
Alkyl C-H 信頼度 1.0
“3530, 3453, 3385, 3285, 3150 3610, 3550, 3500, 3410 OH and H 2O stretching 3036, 2965, 2922, 2870, 2849 C-H vibration 2403, 2367 N-H vibration”
Lacalamita - 2018 - Micro-FTIR and EPMA Characterisation of Charoite f DOI: 10.1155/2018/9293637 -
信頼度 1.0
“Explicit: 'bands at 3240, 3036 and 2809 are components of H-bond between H- and N-H'”
Remarkable acid strength of ammonium ions in zeolites: FTIR study of low-temperature CO adsorption on NH4FER DOI: 10.1039/c4ra12504e -
Alkyl C-H 信頼度 1.0
“Pyridine contamination 3 cm-1, cm-1, resulted in additional bands for C-H stretching at 3036 C-C bonding at 1583 C-N stretching cm-1,”
Zhuang 等 - 2020 - Observation of Potential Contaminants in Processed DOI: 10.3390/app10124345 -
Alkyl C-H 信頼度 0.9
“assigned to aromatic C-H”
Sadia 等 - 2020 - Schiff-Based Fluorescent-ON Sensor L Synthesis and DOI: 10.1155/2020/2192584
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