What absorbs at 553 cm⁻¹ in an FTIR spectrum?
A band near 553 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 553 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 |
|---|---|---|---|
| Metal oxygen | 4 | 3 | 1.0 |
| Phosphate (PO4) | 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
| 材料 | 支持峰 | Overlapping groups | 引用来源 |
|---|---|---|---|
| ZnO NPs | 553, 1664, 875 | Metal oxygen | 1 |
| ZnO | 553, 1400, 3430 | Metal oxygen | 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 553 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
-
Metal oxygen 置信度 1.0
“LLM confirmed rule peak-group candidate”
Okpara 等 - 2020 - Green Wastes Mediated Zinc Oxide Nanoparticles Sy DOI: 10.3390/ma13194241 -
Phosphate (PO4) 置信度 1.0
“FTIR spectrum of the sample AP-10MNa (Figure 6(d)) reveals the PO43(cid:3) bands attributed to the vibration of groups (553, 604, 946, 973,”
Apatitic calcium phosphate/montmorillonite nano-biocomposite: in-situ synthesis, characterization and dissolution properties DOI: 10.1016/j.heliyon.2022.e10042 -
置信度 1.0
“these, a strong band appeared at 553 this was ascribed to the Zn-O stretching”
Sin 等 - 2015 - Preparation of flower-like ZnO hierarchical struct DOI: 10.1007/s11164-013-1363-1 -
Metal oxygen 置信度 1.0
“The absorption peak at 553 results, Zn-Zr MOF-1 was selected for physical adsorption characteristic vibration peak of Zr-O.”
Zhang 等 - 2022 - Green Photocatalysis of Organic Pollutants by Bime DOI: 10.3389/fchem.2022.918941 -
置信度 0.8
“Text: 'The absorption peak at 553 could indicate the beginning of e r' and earlier reference to external bond.”
Dahani 等 - 2020 - Direct Transformation of Bangka Kaolin to Zeolite DOI: 10.1063/5.0015933 -
置信度 0.8
“Explicit assignment in text.”
Cationic Cyclopentadienyliron Complex as a Novel and Successful Nucleating Agent on the Crystallization Behavior of the Biodegradable PHB Polymer DOI: 10.3390/molecules23102703
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