What absorbs at 882 cm⁻¹ in an FTIR spectrum?
A band near 882 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 882 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.
Iespējamie funkcionālo grupu piešķīrumi
| Funkcionālā grupa | Atbalstošie fakti | Citētie avoti | Augstākā pārliecība |
|---|---|---|---|
| C c single bond | 3 | 3 | 1,0 |
| Hydroxyl (O-H) | 3 | 3 | 1,0 |
| Phosphate (PO4) | 2 | 2 | 1,0 |
| Metal hydroxyl | 2 | 2 | 1,0 |
| Silicon-oxygen (Si-O) | 2 | 2 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
| Phosphorus | 1 | 1 | 1,0 |
| Silicon (Si) | 1 | 1 | 1,0 |
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1,0 |
| Silicon hydride | 1 | 1 | 1,0 |
| Metal oxygen | 1 | 0 | 1,0 |
Rangs atspoguļo uzkrātos literatūras pierādījumus, nevis vienu autoritatīvu noteikumu. Vienmēr apstipriniet atbilstoši parauga kontekstam.
Possible materials
| Materiāls | Atbalstošie pīķi | Overlapping groups | Citētie avoti |
|---|---|---|---|
| silica | 882, 1100, 1080 | Hydroxyl (O-H) | 1 |
| CuO | 882, 453, 1000 | Hydroxyl (O-H) | 1 |
| DNA | 882, 1712, 1660 | Phosphate (PO4) | 1 |
| kaolinite | 882, 3696, 693 | Hydroxyl (O-H), Phosphate (PO4), Metal hydroxyl | 1 |
| quartz | 882, 800, 3053 | Hydroxyl (O-H), Metal hydroxyl | 1 |
| bentonite | 882, 918, 525 | Hydroxyl (O-H), Metal hydroxyl | 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 882 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.
Literatūra aiz šiem piešķīrumiem
-
C c single bond pārliecība 1,0
“LLM confirmed rule peak-group candidate”
De 等 - 2000 - Hydrolysis-condensation reactions of TEOS in the p DOI: 10.1039/B003221M -
Silicon hydride pārliecība 1,0
“the band of 1108 corresponding to Sicm-1 O-Si (asymmetric stretching of interstitial oxygen in Si) and absorption peaks at 882 and 2245 cm-1 corresponding to O 3-SiH bending and stretching mode [4, 6, 12, 18, 19, 32].”
REVERSIBLE QUENCHING OF PHOTOLUMINESCENCE IN STAIN ETCHED POROUS SILICON AT HNO3 POSTTREATMENT AND ROLE OF OXYGEN BONDS DOI: 10.1016/j.jlumin.2017.11.011 -
Metal hydroxyl pārliecība 1,0
“Sagadevan [84] connected the Cu-OH vibration to the 882 cm-1 peak, which proved the cm-1 connected the Cu-OH vibration to the 882 peak, which proved the successful prepasuccessful preparation of rGO/CuO nanocomposites in agreement with [85-”
Effect of rGO wt.% on the Preparation of rGO/CuO Nanocomposites at Different Test Periods and Temperatures DOI: 10.3390/cryst12101325 -
C c single bond pārliecība 1,0
“(%) cm-1 The peaks at 882 and 1015 were due to the asymTransmittance metric tensile vibrations of C-C and C-O-C bands of”
Optimization of food-grade medium for co-production of bioactive substances by Lactobacillus acidophilus LA-5 for explaining pharmabiotic mechanisms of probiotic DOI: 10.1007/s13197-020-04894-5 -
Silicon (Si) pārliecība 1,0
“The 1038 cm-1is assigned to stretching vibrations of Si-O, and bands at 918 cm-1 and 882 cm-1 cm-1”
Khodosova 等 - 2022 - Magnetic Nanosorbents Based on Bentonite and CoFe2 DOI: 10.3390/min12111474 -
Phosphate (PO4) pārliecība 1,0
“2cm-1 asymmetric and symmetric vibration at 1237 to 1236 and 1098 to Minor variation in PO cm-1, cm-1 cm-1 1094 infrared B-marker bands at 882 (sugar-phosphate stretch) and 817 (phospho-diester”
Astragalin from Cassia alata Induces DNA Adducts in Vitro and Repairable DNA Damage in the Yeast Saccharomyces cerevisiae DOI: 10.3390/ijms13032846 -
Alkyl C-H pārliecība 1,0
“and, 882 cm-1 and 860 cm-1 represent CH rocking and C-C stretching, 2”
Verma 等 - 2021 - Chelating Ligands as Electrolyte Solvent for Recha DOI: 10.1021/acs.chemmater.0c04358 -
Phosphate (PO4) pārliecība 1,0
“cm-1 cm-1 cm-1 The peaks at 385 and 420 are related lower Raman peaks at 882 and 1150 correspond to HPO”
Fabrication and Characterisation of Two-Layered Synthetic Titanium-Chitosan Bone Scaffolds DOI: 10.1007/978-3-030-92381-5_73
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