What absorbs at 2350 cm⁻¹ in an FTIR spectrum?
A band near 2350 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 2350 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 | 10 | 10 | 1.0 |
| Carbon dioxide | 6 | 5 | 1.0 |
| Aromatic ring | 4 | 4 | 1.0 |
| Carbonyl (C=O) | 4 | 4 | 1.0 |
| Amide | 4 | 3 | 1.0 |
| Hydroxyl (O-H) | 3 | 3 | 1.0 |
| Methacrylate | 2 | 2 | 1.0 |
| Ketone | 2 | 2 | 1.0 |
| Ester | 2 | 2 | 1.0 |
| Carboxyl (COOH) | 2 | 2 | 1.0 |
| Acetate | 2 | 2 | 1.0 |
| N h | 2 | 2 | 1.0 |
| Methyl | 1 | 1 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 1.0 |
| N n bond | 1 | 1 | 1.0 |
| Silicon hydride | 1 | 1 | 1.0 |
| Isocyanate | 1 | 1 | 1.0 |
| N-O bond | 1 | 1 | 1.0 |
| Chitosan | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 0.8 |
| Alkene (C=C) | 1 | 1 | 0.8 |
| Secondary amine | 1 | 0 | 1.0 |
| C n single bond | 1 | 0 | 1.0 |
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 |
|---|---|---|---|
| chitosan | 2350, 1650, 1655 | Alkyl C-H | 1 |
| methylene blue | 2350, 1745, 1739 | Alkyl C-H | 1 |
| chitin | 2350, 1650, 1655 | Alkyl C-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 2350 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
-
Alkyl C-H আত্মবিশ্বাস 1.0
“The ∼2880cm-1 ∼1400cm-1 ∼2350 ∼1300 Among these peaks, those at and peaks at and are show reasonable agreement C-H known to correspond to CO with those in the experiment.”
Kurokawa 等 - 2016 - Possible formation of one-dimensional chains of C2 DOI: 10.7567/APEX.9.049201 -
Alkyl C-H আত্মবিশ্বাস 1.0
“The peaks at approximately cm-1 2350 were attributed to symmetric and asymmetric vibrations of C-H groups in the”
Antimicrobial Activity of Chemically and Biologically Treated Chitosan Prepared from Black Soldier Fly (Hermetia illucens) Pupal Shell Waste DOI: 10.3390/microorganisms9122417 -
আত্মবিশ্বাস 1.0
“3 Effect of pH (A) and temperature (B) on the decolorization of MB by strain Acinetobacter pittii cm-1, the MB was reported at 2350 while the absorption corresponding to the H-N-H bending cm-1.Thesepeaks werealsosignificantly reducedin thes”
Biodegradation of Methylene Blue as an Evidence of Synthetic Dyes Mineralization during Textile Effluent Biotreatment by Acinetobacter pittii DOI: 10.1007/s40710-020-00443-6 -
Alkyl C-H আত্মবিশ্বাস 1.0
“The band at 2350 is assigned to 2 aliphatic and aromatic CH band structure [39].”
Influence of Bismuth Doping on Structural, Electrical and Dielectric Properties of Ni-Zn Nanoferrites DOI: 10.1016/j.jallcom.2020.157760 -
Alkyl C-H আত্মবিশ্বাস 1.0
“The absorption at observed around 2350 1.8 700-950cm(cid:2)1 is assigned to the CH out-of-plane bending around sp2”
Bonding structure and optical properties of a-CNx:H films deposited in CH4-NH3 system DOI: 10.1016/j.vacuum.2009.04.055 -
Aromatic ring আত্মবিশ্বাস 1.0
“1506-1510 is because of aromatic The absorcm(cid:1)1 -C(cid:3)Nis attributed to bance peak around 2350 -C(cid:3)C- (Nitrites) and (Alkynes) compounds [16].”
Awad 等 - 2023 - An attempt to apply laser combustion to palm waste DOI: 10.1051/jeos/2023003 -
Carbonyl (C=O) আত্মবিশ্বাস 1.0
“From Figure 9, the asymmetric cm-1 stretching vibrations of carbonyl (C=O) lead to the peak wavenumbers of 2350 and cm-1.”
The Catalytic Effect from Alkaline Elements on the Tar-Rich Coal Pyrolysis DOI: 10.3390/catal12040376 -
Carbon dioxide আত্মবিশ্বাস 1.0
“On the other hand, the bands 2350.40 2325.00 were O-- C-- assigned to O carbon dioxide.”
Preparation and characterization of activated carbon from agricultural wastes and their ability to remove chlorpyrifos from water DOI: 10.1016/j.toxrep.2023.01.011
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।