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
Mabilis na sagot
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.
Mga posibleng pagtatalaga ng functional-group
| Grupong functional | Mga sumusuportang katotohanan | Mga nasiping sanggunian | Pinakamataas na kumpiyansa |
|---|---|---|---|
| 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 |
Ang pagraranggo ay sumasalamin sa naipon na ebidensya ng literatura, hindi isang solong awtoritatibong tuntunin. Palaging kumpirmahin laban sa konteksto ng iyong sample.
Mga posibleng materyales
| Materyal | Sumusuportang mga peak | Mga overlapping na grupo | Mga nasiping sanggunian |
|---|---|---|---|
| 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 |
Ang mga materyales ay ipinapakita lamang kapag ang parehong literatura pool ay sumusuporta sa banda na ito at hindi bababa sa isang karagdagang katangian na tuktok.
Logic ng spectrum
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.
Paggamit sa totoong mundo
Ang uri ng query na ito ay karaniwan sa pagtukoy ng polymer, screening ng hindi kilalang plastic, pag-troubleshoot ng QC, pag-verify ng recycled na materyal, at pagsusuri ng pagtatalaga ng peak na may suporta ng literatura.
Mga karaniwang pagkakamali
- Pagtrato sa isang nakahiwalay na banda bilang patunay ng isang materyal nang hindi sinusuri ang hindi bababa sa isa o dalawang sumusuportang peak.
- Hindi pinapansin ang overlap: maraming functional group ang maaaring mag-ambag malapit sa parehong wavenumber.
- Pag-laktaw sa pagpapatunay kapag ang mga additives, blends, oxidation, o contamination ay maaaring mag-distort ng spectrum.
Payo sa pagpapatunay
Kapag nananatili ang kalabuan, patunayan ang hypothesis gamit ang DSC, GC-MS, o TGA, lalo na para sa mga blend, degraded na sample, at filled polymers.
Literatura sa likod ng mga pagtatalagang ito
-
C c single bond kumpiyansa 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 kumpiyansa 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 kumpiyansa 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 kumpiyansa 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) kumpiyansa 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) kumpiyansa 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 kumpiyansa 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) kumpiyansa 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
May spectrum ka ba na may ganitong band?
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