What absorbs at 3346 cm⁻¹ in an FTIR spectrum?
A band near 3346 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
Moguće dodjele funkcionalnih skupina
| Funkcionalna skupina | Potporni dokazi | Citirani izvori | Najveća pouzdanost |
|---|---|---|---|
| Hydroxyl (O-H) | 2 | 1 | 1,0 |
| N h | 2 | 0 | 1,0 |
| Alkyl C-H | 1 | 1 | 0,9 |
| Hydrogen bond | 1 | 1 | 0,9 |
| Water (H2O) | 1 | 1 | 0,8 |
Rangiranje odražava akumulirane literaturne dokaze, a ne jedno autoritativno pravilo. Uvijek provjerite u kontekstu vašeg uzorka.
Literatura iza ovih dodjela
-
Hydroxyl (O-H) pouzdanost 0,9
“Explicit assignment: 'hydrogen bonds and free O-H stretching vibration at 3346'”
Tran 等 - 2018 - Radiation synthesis and characterization of super- DOI: 10.1016/j.envpol.2018.07.129 -
Alkyl C-H pouzdanost 0,9
“Explicit assignment in text”
Kachel 等 - 2023 - Comparative Analysis of Vegetable and Mineral Oil- DOI: 10.3390/ma16144975 -
pouzdanost 0,9
“Represents free N-H for pure PU.”
Velayutham 等 - 2012 - Theoretical and experimental approach on dielectri DOI: 10.1063/1.4749414 -
Water (H2O) pouzdanost 0,8
“Indicates small amount of free water.”
Yuan 等 - 2017 - Time-dependent characterization of Na2CO3 activate DOI: 10.1016/j.cemconcomp.2017.09.005
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