What absorbs at 848 cm⁻¹ in an FTIR spectrum?
A band near 848 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 848 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.
সম্ভাব্য কার্যকরী-গ্রুপ অ্যাসাইনমেন্ট
| কার্যকরী গ্রুপ | সমর্থনকারী তথ্য | উদ্ধৃত সূত্র | সর্বোচ্চ আত্মবিশ্বাস |
|---|---|---|---|
| Alkyl C-H | 4 | 4 | 1.0 |
| Aromatic ring | 2 | 2 | 1.0 |
| Metal oxygen | 2 | 2 | 1.0 |
| Hydroxyl (O-H) | 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 |
| Ring structure | 1 | 1 | 1.0 |
| Chlorine | 1 | 1 | 1.0 |
| Oxygen heterocycle | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Sulfur | 1 | 1 | 1.0 |
| Carbon bromine | 1 | 1 | 0.7 |
র্যাঙ্কিং জমা হওয়া সাহিত্য প্রমাণ প্রতিফলিত করে, একটি একক কর্তৃত্বপূর্ণ নিয়ম নয়। সর্বদা আপনার নমুনা প্রসঙ্গের বিরুদ্ধে নিশ্চিত করুন।
Possible materials
| উপাদান | সমর্থনকারী শিখর | Overlapping groups | উদ্ধৃত সূত্র |
|---|---|---|---|
| polypropylene | 848, 1030, 1600 | Alkyl C-H, Hydroxyl (O-H) | 1 |
| diamond | 848, 1378, 1332 | Alkyl C-H, Hydroxyl (O-H), Aromatic ring | 1 |
| asphalt | 848, 1600, 1376 | Alkyl C-H, Aromatic ring, Hydroxyl (O-H) | 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 848 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.
এই অ্যাসাইনমেন্টগুলোর পেছনে সাহিত্য
-
আত্মবিশ্বাস 1.0
“The peak at 848 corresponds to symmetric Ti-O stretching vibrations and 6”
Fabrication of the flexible nanogenerator from BTO nanopowders on graphene coated PMMA substrates by sol-gel method DOI: 10.1016/j.matchemphys.2017.02.002 -
Sulfur আত্মবিশ্বাস 1.0
“Characteristic peak for sulfur detected in co-doped diamond.”
Li 等 - 2017 - Synthesis of n-type semiconductor diamond single c DOI: 10.1088/1757-899X/274/1/012131 -
Metal oxygen আত্মবিশ্বাস 1.0
“Extra bands with small intensity at around 848 cm-1 and 858 are observed in BaTiO 3-xBi 2O (C1, C2, and C3) ceramics, which are ascribed to 3 the Bi-O vibration.”
Structural and radiation shielding properties of BaTiO3 ceramic with different concentrations of Bismuth and Ytterbium DOI: 10.1016/j.ceramint.2020.08.055 -
আত্মবিশ্বাস 1.0
“identified at the characteristic peak of 1362.76 The intermediate products showed a sharp peak in the range of cm-1 cm-1 to 1508.45 compared to EbP which indicates that the secondary amines, the N-H stretching band is 847.77”
Tan 等 - 2018 - Synthesis and Characterization of Polybenzoxazine DOI: 10.1063/1.5066866 -
Oxygen heterocycle আত্মবিশ্বাস 1.0
“The EGMA spectrum exhibits absorption bands at 997, 910 and 848 cm-1 indicating the presence of a C═O group, as associated to the epoxy group, a band at 1730 well as the characteristic bands of PE [37,44].”
A facile route to improve compatibilization of low density polyethylene/poly (-caprolactone) blends DOI: 10.1016/j.polymdegradstab.2022.110111 -
Alkyl C-H আত্মবিশ্বাস 1.0
“Results and Discussion with the spectrum of DTAT, two new peaks located at 2931 cm-1 and 2840 cm-1 (C-H of -CH2-) appeared and one peak at 848 cm-1 (C-Cl) disappeared in the PETAT spectrum, showing that a reaction had occurred between DTAT”
The Effects of a Macromolecular Charring Agent with Gas Phase and Condense Phase Synergistic Flame Retardant Capability on the Properties of PP/IFR Composites DOI: 10.3390/ma11010111 -
Alkyl C-H আত্মবিশ্বাস 1.0
“S=O 1024 stretching vibration 964 Trans-C-H wagging vibration (butadiene block) 940 C-H deformation vibration of ring hydrogens 848”
Effect of Phenolic Resin on the Rheological and Morphological Characteristics of Styrene-Butadiene Rubber-Modified Asphalt DOI: 10.3390/ma13245836 -
Aromatic ring আত্মবিশ্বাস 1.0
“cm-1 Additionally, the relatively intense band at 848 in sample D13 could also be assigned cm-1 to aromatic C-H vibrations.”
Identification of Colourants and Varnishes in a 14th Century Decorated Wood-Carved Door of the Dionysiou Monastery in Mount Athos DOI: 10.3390/coatings11091087
এই ব্যান্ডের সাথে একটি স্পেকট্রাম আছে?
আপনার FTIR স্পেকট্রাম আপলোড করুন এবং সেকেন্ডের মধ্যে একটি সম্পূর্ণ ব্যাখ্যা রিপোর্ট পান — সাহিত্য সাইটেশন সহ পিক অ্যাসাইনমেন্ট, লাইব্রেরি ম্যাচ এবং একটি আত্মবিশ্বাস-রেটেড এভিডেন্স চেইন।