What absorbs at 2102 cm⁻¹ in an FTIR spectrum?
A band near 2102 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 4 cited sources
Quick answer
A band near 2102 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 |
|---|---|---|---|
| Adsorbed carbon monoxide | 1 | 1 | 1.0 |
| Protein | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| C#c | 1 | 1 | 1.0 |
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
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 2102 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
-
C#c 置信度 1.0
“LLM confirmed rule peak-group candidate”
Experimental and computational chemistry studies on the inhibition of aluminium and mild steel in 0. DOI: 10.1080/16583655.2018.1500514 -
置信度 1.0
“2 cm-1 C-H 2102.022 could be caused by the stretch of the N-H bond of the methylene groups of protein and the stretch salt.18 of the amine The above result is most likely owing to the been shown that the carbon sheath and nanointerface, onc”
Rizwan 等 - 2023 - Enterobacter hormaechei-Driven Novel Biosynthesis DOI: 10.1021/acsomega.3c02932 -
Adsorbed carbon monoxide 置信度 1.0
“In the spectrum of the 2.5%Zn/TiO catalyst, only one 2 Materials 2023, 16, x FOR PEER REVIEW 8 of 17 cm-1 band at 2102 can be observed, associated with CO adsorbed linearly on Zn atoms in the monometallic system.”
Samadi 等 - 2023 - Zn Modification of PdTiO2Ti Catalyst for CO Oxid DOI: 10.3390/ma16031216 -
置信度 0.9
“Band at 2102 attributed to ferricyanide”
Cheah 和 Chernev - 2021 - Electrochemical oxidation of ferricyanide DOI: 10.1038/s41598-021-02355-3
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