What absorbs at 2972 cm⁻¹ in an FTIR spectrum?
A band near 2972 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 5 cited sources
Mga posibleng pagtatalaga ng functional-group
| Grupong functional | Mga sumusuportang katotohanan | Mga nasiping sanggunian | Pinakamataas na kumpiyansa |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
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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Alkyl C-H kumpiyansa 1.0
“Between them, the cm-1 spectra of LBQ had two peaks at 2972 (C-H stretching of the methylene bridges) and Molecules 2022, 27, x FOR PEER REVIEW 4 of 20 Molecules2022,27,5842”
Comparative Analysis of the Phenolic Profile of Lycium barbarum L. Fruits from Different Regions in China DOI: 10.3390/molecules27185842 -
Hydroxyl (O-H) kumpiyansa 1.0
“(2020), the to O-H stretch, while the peaks at 2972, 1375, and 1218 cm-1 heating process to diatomite waste at 400 °C increases could be attributed to C-H stretching vibration.”
Hamdiani 和 Shih - 2021 - A Green Method for Synthesis of Silver-Nanoparticl DOI: 10.22146/ijc.63573 -
Alkyl C-H kumpiyansa 1.0
“Two other peaks at 2972 which corresponds to C-H Alkayl treated samples.”
Sultana 等 - 2023 - Investigation of the Effect of Atmospheric Plasma DOI: 10.3390/membranes13020231 -
Alkyl C-H kumpiyansa 1.0
“In 2 cm-1 pure PVC sample A, the C-H stretching peak at 2972 cm-1 and C-Cl stretching observed at 863 [33].”
Dynamic mechanical and optical characterization of PVC/fGO polymer nanocomposites DOI: 10.1007/s00339-018-2026-2 -
Hydroxyl (O-H) kumpiyansa 1.0
“Observed peak cm-1 intensity at 3324.6 was assigned to the -O-H structuring vibrations modes, 2971.6, cm-1, 2926.4, and 2881.2 which are attributed to the presence of asymmetric and symmetric structuring vibration modes of C-H aliphatic car”
Alamier 等 - 2022 - Thermodynamic and Spectroscopic Studies of SDS in DOI: 10.3390/app122312020
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