What absorbs at 2943 cm⁻¹ in an FTIR spectrum?
A band near 2943 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
Aseiniadau grŵp swyddogaethol posibl
| Grŵp swyddogaethol | Ffeithiau ategol | Ffynonellau a ddyfynnwyd | Hyder uchaf |
|---|---|---|---|
| Alkyl C-H | 5 | 5 | 0.95 |
| Methyl | 1 | 1 | 0.9 |
Mae＇r safle＇n adlewyrchu tystiolaeth llenyddiaeth gronnwyd, nid rheol awdurdodol sengl. Cadarnhewch bob amser yn erbyn eich cyd-destun sampl.
Llenyddiaeth y tu ôl i＇r aseiniadau hyn
-
Alkyl C-H hyder 0.95
“Explicit assignment: 'peak characteristic of PPDO at 2943 (C-H stretch)'.”
Lee 等 - 2008 - Surface-initiated ring-opening polymerization of p DOI: 10.1002/pola.22457 -
hyder 0.9
“Text: 'peak at 2943 cm-1 that corresponded to C-H alkenyl stretch'”
Khatoon 等 - 2019 - Lignin peroxidase isoenzyme a novel approach to b DOI: 10.1080/09593330.2017.1422550 -
Alkyl C-H hyder 0.9
“Text: 'CH stretching at 2943 (asymmetric)'”
Cetmi 等 - 2019 - Preparation of electrospun polycaprolactone nanofi DOI: 10.1002/elsc.201900009 -
Alkyl C-H hyder 0.9
“Explicit assignment: CH2-, CH3-, and C-H asymmetric stretching.”
Jaziri 等 - 2022 - Biochemical analysis of collagens from the bone of DOI: 10.7717/peerj.13103 -
Alkyl C-H hyder 0.8
“C-H stretching.”
Markovic 等 - 2023 - Structural, optical, and bioimaging characterizati DOI: 10.3762/bjnano.14.17 -
Alkyl C-H hyder 0.7
“C-H attributed to medium stretching alkane confirming polysaccharides.”
Chowdhury 等 - 2023 - Development and characterization of natural source DOI: 10.1016/j.heliyon.2023.e13538
Oes gennych sbectrwm gyda＇r band hwn?
Llwythwch eich sbectrwm FTIR i fyny a chael adroddiad dehongli llawn — aseiniadau brig gyda chyfeiriadau llenyddiaeth, cyfateb llyfrgell, a chadwyn dystiolaeth â gradd hyder — mewn eiliadau.
Dehongli fy sbectrwm