What absorbs at 1356 cm⁻¹ in an FTIR spectrum?
A band near 1356 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
Quick answer
A band near 1356 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.
可能的官能团归属
| 官能团 | 支持性事实 | 引用来源 | 最高置信度 |
|---|---|---|---|
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Imide | 1 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| C n single bond | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Ammonium | 1 | 1 | 1.0 |
| Sulfate (SO4) | 1 | 1 | 1.0 |
| Carbonate | 1 | 1 | 1.0 |
| Nitrate | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 0.9 |
| N c o | 1 | 1 | 0.7 |
排名反映了累积的文献证据，而非单一的权威规则。请始终对照您的样品背景进行确认。
Possible materials
| 材料 | 支持峰 | Overlapping groups | 引用来源 |
|---|---|---|---|
| graphene oxide | 1356, 1150, 3400 | Hydroxyl (O-H), C-O single bond, Carboxyl (COOH) | 1 |
| zinc oxide | 1356, 1627, 1638 | C-O single bond, Carboxyl (COOH) | 1 |
| goethite | 1356, 1470, 696 | Hydroxyl (O-H), Carboxyl (COOH), C-O single bond | 1 |
| graphene oxide (GO) | 1356, 1400, 1580 | C-O single bond, Hydroxyl (O-H), Carboxyl (COOH) | 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 1356 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.
这些分配背后的文献
-
Nitrate 置信度 1.0
“The use of ATR-FTIR led to the identification of absorption bands characteristic of sulfate, ammonium, nitrate, and carbonate by vibrational frequencies at 603, 615, 670, and 1100 cm-1 for SO42--, at 1414 cm-1 for NH4+, at 825 and 1356 cm-1”
Varrica 等 - 2019 - ATR-FTIR Spectral Analysis and Soluble Components DOI: 10.3390/ijerph16142507 -
Amide 置信度 1.0
“The absorption peaks at 1356 and and 1380 cm-1 and ~720 were attributed to C-N stretching and the deformation vibration of the imide ring, cm-1, respectively.”
Azobenzene Functionalized “T-Type” Poly(Amide Imide)s vs. Guest-Host Systems— A Comparative Study of Structure-Property Relations DOI: 10.3390/ma13081912 -
置信度 1.0
“NO1417cm-1 1620 and bands, assigned to C ion vibration solids are deliquesced, identified by the broader fea4 3 1465cm-1 1356cm-1 (Wang et al., 2019), and weaker band indicate ture band at (seen Fig.”
Ma 等 - 2022 - A comprehensive study on hygroscopic behaviour and DOI: 10.5194/acp-22-10955-2022 -
C-O single bond 置信度 1.0
“The band at 1356 cm-1 is due to C-OH stretching of O-H groups, while the band at at ~1600 can be attributed to stretching mode of the carbon skeletal network to cm-1 1045 and at 1141 cm-1 can be also attributed to epoxy and alkoxy C-O group”
Maggira 等 - 2019 - Synthesis of Graphene Oxide Based Sponges and Thei DOI: 10.3390/molecules24112086 -
Carboxyl (COOH) 置信度 1.0
“(cid:3) s(COO) cm-1 ∼1710 ∼1365 (cid:3) at and 1290 associated with protonated COOH bands s(COO) ∼1356 (cid:3)”
Dynamic adsorption process of phthalate at goethite/aqueous interface: An ATR-FTIR study DOI: 10.1016/j.colsurfa.2013.10.021 -
置信度 0.9
“D band related to disordered carbons with sp3 hybridization”
Emrooz 等 - 2021 - Zinc-salt assisted synthesis of three-dimensional DOI: 10.1038/s41598-021-01151-3 -
Alkyl C-H 置信度 0.9
“Text: 'band derived from the -C-H group at a wavenumber of 1356 cm-1'”
Preparation and Characterization of Indomethacin Supramolecular Systems with -Cyclodextrin in Order to Estimate Photostability Improvement DOI: 10.3390/molecules26247436 -
置信度 0.7
“Bands attributed to C=N-C and N-C-O”
Nanoporous Polymer Films of Cyanate Ester Resins Designed by Using Ionic Liquids as Porogens DOI: 10.1186/s11671-017-1900-8
是否有此波段的光谱？
上传您的FTIR光谱，几秒钟内即可获得完整的解读报告——包含带文献引用的峰分配、库匹配和带有置信度评级的证据链。