What absorbs at 3321 cm⁻¹ in an FTIR spectrum?
A band near 3321 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
Mga posibleng pagtatalaga ng functional-group
| Functional group | Mga sumusuportang katotohanan | Mga nasiping sanggunian | Pinakamataas na kumpiyansa |
|---|---|---|---|
| N h | 2 | 2 | 0.95 |
| Hydroxyl (O-H) | 2 | 2 | 0.9 |
| Amine primary | 1 | 1 | 0.9 |
Ang pagraranggo ay sumasalamin sa naipon na ebidensya ng literatura, hindi isang solong awtoritatibong tuntunin. Palaging kumpirmahin laban sa konteksto ng iyong sample.
Literatura sa likod ng mga pagtatalagang ito
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N h kumpiyansa 0.95
“Explicit assignment: 'N-H cm-1 stretching peak at 3321'.”
Nurubhasha 等 - 2019 - Extraction and characterization of collagen from t DOI: 10.1007/s10068-019-00601-z -
Hydroxyl (O-H) kumpiyansa 0.9
“attributed to O-H”
Elias 等 - 2019 - Nanocellulose-silica polyethersulfone hybrid compo DOI: 10.1063/1.5125521 -
Hydroxyl (O-H) kumpiyansa 0.9
“Broad absorption band assigned to -OH.”
Hanif 和 Zaman - 2017 - Thiolation of arabinoxylan and its application in DOI: 10.1186/s40199-017-0172-2 -
N h kumpiyansa 0.9
“N-H stretching band of -NH2 group appeared at 3321.18 cm-1.”
Batool 等 - 2019 - USE OF GLUTARIC ACID TO IMPROVE THE SOLUBILITY AND DOI: 10.32383/appdr/94246
May spectrum ka ba na may ganitong band?
I-upload ang iyong FTIR spectrum at makakuha ng buong interpretasyon na ulat — mga pagtatalaga ng peak na may mga pagsipi ng literatura, pagtutugma ng library, at isang kadena ng ebidensya na may rating ng kumpiyansa — sa loob ng ilang segundo.
I-interpret ang aking spectrum