What absorbs at 898 cm⁻¹ in an FTIR spectrum?
A band near 898 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 898 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 |
|---|---|---|---|
| Carbohydrate | 15 | 15 | 1.0 |
| Acetate | 8 | 7 | 1.0 |
| Methoxy (OCH3) | 7 | 6 | 1.0 |
| Methacrylate | 7 | 6 | 1.0 |
| C-O single bond | 7 | 6 | 1.0 |
| Alkyl C-H | 5 | 5 | 1.0 |
| Secondary amine | 2 | 1 | 1.0 |
| C n single bond | 2 | 1 | 1.0 |
| Amide | 2 | 1 | 1.0 |
| Phosphate (PO4) | 2 | 1 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
| Oxygen heterocycle | 1 | 1 | 1.0 |
| Hydrogen bond | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Metal oxo | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Chitosan | 1 | 1 | 0.7 |
| N h | 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 |
|---|---|---|---|
| starch | 898, 1650, 1540 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
| Cellulose | 898, 1735, 1650 | Acetate, Methacrylate, Methoxy (OCH3) | 1 |
| TiO2 | 898, 1700, 1093 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
| lignin | 898, 1035, 1510 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
| wood | 898, 1740, 1730 | Carbohydrate, Methacrylate, Acetate | 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 898 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
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Carbohydrate আত্মবিশ্বাস 1.0
“Both the control cellulose and CWG spectra showed In particular, the absorbance bands at around 898, 1,057, the corresponding signals for cellulose.”
Choi 等 - 2018 - Structural Characterization of Cellulose Obtained DOI: 10.3746/pnf.2018.23.2.166 -
Ring structure আত্মবিশ্বাস 1.0
“The C-C stretching at 1,059 cm-1 were the asymmetric out of phase ring stretching of cellulose at 898 β-glucosidic also detected and related to the linkages between the sugar”
Hajiha 等 - 2014 - Modification and Characterization of Hemp and Sisa DOI: 10.1080/15440478.2013.861779 -
Hydroxyl (O-H) আত্মবিশ্বাস 1.0
“The primary peaks at 3,353 and 2,898 cm-1 are assigned to O-H stretching and C-H stretching vibration, respectively.”
Lu 等 - 2020 - One-pot Green Synthesis of Carboxylated Cellulose DOI: 10.1016/j.biortech.2007.04.029 -
Alkyl C-H আত্মবিশ্বাস 1.0
“ECS Journal of Solid State Science and Technology, 6 (7) R88-R95 (2017) R91 cm-1 cm-1 The absorption band at 3450 and 1630 can be attributed bond.51 to the symmetric stretching and bending vibration of H-O-H Theabsorptionbandobtainedat1386c”
Mondal 和 Manam - 2017 - Structural and Luminescent Properties of Si4+ Co-D DOI: 10.1149/2.0021708jss -
Carbohydrate আত্মবিশ্বাস 1.0
“3a and b) the intensipeak is often taken as cm-1 ties of carbohydrate bands at 1734, 1375, 1320, 1158, 1060 a reference for lignin, while the 1738, 1158 or 898 cm-1 and 898 decrease and carbohydrate bands at 1320, peaks as polysaccharide re”
Pandey 和 Pitman - 2003 - FTIR studies of the changes in wood chemistry foll DOI: 10.1016/S0964-8305(03)00052-0 -
Acetate আত্মবিশ্বাস 1.0
“-C-O stretching (cid:3)-glucosidic (cid:3)-glucosidic Asymmetric out of plane bond stretch 898 Asymmetric out of plane bond stretch 900 3.2.”
Slightly carbomethylated cotton supported TiO2 nanoparticles as self-cleaning fabrics DOI: 10.1016/j.molcata.2014.11.012 -
Metal oxo আত্মবিশ্বাস 1.0
“LLM confirmed rule peak-group candidate”
Determination of photoelectrochemical water oxidation intermediates on haematite electrode surfaces using operando infrared spectroscopy DOI: 10.1038/NCHEM.2557 -
Acetate আত্মবিশ্বাস 1.0
“Also, the FTIR band at cm-1, 898 assigned to C-O-C stretching, is known as an ''amorphous'' absorption band.”
Surface modification of nanosatrch using nano silver: a potential antibacterial for food package coating DOI: 10.1007/s13197-017-2996-7
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।