What absorbs at 2342 cm⁻¹ in an FTIR spectrum?
A band near 2342 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 4 cited sources
Quick answer
A band near 2342 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 |
|---|---|---|---|
| Carbon dioxide | 2 | 2 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| Ammonium | 1 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 0 | 1.0 |
| Methacrylate | 1 | 0 | 1.0 |
| C-O single bond | 1 | 0 | 1.0 |
| Acetate | 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 |
|---|---|---|---|
| Polyurethane | 2342, 2270, 1700 | Amide | 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 2342 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
“cm-1 the integration of peak areas at 2927 and 2342 for the aliphatic hydrocarbons and CO 2, 220 integration of peak areas at 2927 cm-1 and 2342 cm-1 for the aliphatic hydrocarbons and CO2, respectively.”
High Throughput Screening and Characterization Methods of Jordanian Oil Shale as a Case Study DOI: 10.3390/en12163148 -
N h আত্মবিশ্বাস 1.0
“After modified by 2-aminoethanol, the FTIR Polymers 2020, 12, x FOR PEER REVIEW 4 of 13 peaks at 2363 cm-1 and 2342 cm-1, which are assigned to NH+ in rhodamine 6G, disappear.”
A Fluorescent Polyurethane with Covalently Cross-Linked Rhodamine Derivatives DOI: 10.3390/polym12091989 -
Amide আত্মবিশ্বাস 1.0
“vibrations 2341.89 poor purge stability of the instrument (C=O), Carbonyl group -0.95 5 amide I group stretching 1654.56 1653.61”
Mycosynthesis of Silver Nanoparticles Using Screened Trichoderma Isolates and Their Antifungal Activity against Sclerotinia sclerotiorum DOI: 10.3390/nano10101955 -
Carbon dioxide আত্মবিশ্বাস 0.9
“Text: 'peak with a wavenumber of 2342 cm-1 captured by CaO as CaCO3'”
Hydrogen production from autothermal CO2 gasification of cellulose in a fixed-bed reactor: Influence of thermal compensation from CaO carbonation DOI: 10.1016/j.ijhydene.2022.02.018
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।