What absorbs at 2945 cm⁻¹ in an FTIR spectrum?
A band near 2945 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 6 cited sources
Mga posibleng pagtatalaga ng functional-group
| Functional group | Mga sumusuportang katotohanan | Mga nasiping sanggunian | Pinakamataas na kumpiyansa |
|---|---|---|---|
| Alkyl C-H | 6 | 4 | 0.9 |
| Methyl | 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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Alkyl C-H kumpiyansa 0.9
“Snippet: 'peaks at 2945 and 2865 due to CH and CH stretching vibrations'”
Catauro 等 - 2023 - Antibacterial and Cytotoxic Silica-Polycaprolacton DOI: 10.3390/molecules28083486 -
Methyl kumpiyansa 0.9
“Symmetrical stretching of CH3”
Gupta 等 - 2018 - Effects of Amphiphilic Chitosan on Stereocomplexat DOI: 10.1038/s41598-018-22281-1 -
Alkyl C-H kumpiyansa 0.9
“Text: '2945cm-1 (asymmetric CH stretching)'”
Kim 等 - 2014 - Fabrication and Characterization of PCLTiO2 Nanop DOI: 10.7317/pk.2014.38.2.150 -
Alkyl C-H kumpiyansa 0.9
“Explicit assignment v(C-H).”
Reinsdorf 等 - 2023 - Comprehensive Studies on the Role of Small Aliphat DOI: 10.3390/catal13040753 -
Alkyl C-H kumpiyansa 0.9
“Explicit: 'CH asymmetric stretching at 2945'.”
Wang 等 - 2017 - Preparation of active 3D film patches via aligned DOI: 10.1038/srep43924 -
kumpiyansa 0.8
“Represent asymmetric stretching.”
Silva 等 - 2022 - Development of a Polymeric Membrane Impregnated wi DOI: 10.3390/molecules27206959
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