What absorbs at 2020 cm⁻¹ in an FTIR spectrum?
A band near 2020 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 8 cited sources
Aseiniadau grŵp swyddogaethol posibl
| Grŵp swyddogaethol | Ffeithiau ategol | Ffynonellau a ddyfynnwyd | Hyder uchaf |
|---|---|---|---|
| Alkyl C-H | 5 | 5 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Water (H2O) | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
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
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Carbonyl (C=O) hyder 1.0
“A Rygh has assigned a series of broad CO bands between 2020 comparison of Figures 11 and 12 shows that the CO desorption cm-1 (Figure 10d) as arising from linear Re carbonyls.”
Kumar 等 - 2011 - In Situ FT-IR Study on the Effect of Cobalt Precur DOI: 10.1021/jp104878e -
Water (H2O) hyder 1.0
“LLM confirmed rule peak-group candidate”
Lumsdon 和 Fraser - 2005 - Infrared spectroscopic evidence supporting heterog DOI: 10.1021/es050180iCCC -
Alkyl C-H hyder 1.0
“The peak at 2020 124 combination band associated with the twisting of CH 2, was used as an internal standard, since 125 it can be regarded as unaffected by minor changes in the polymer structure [35].”
Affatato 等 - 2010 - Long-term in-vitro wear performance of an innovati DOI: 10.1016/j.triboint.2009.04.049 -
hyder 1.0
“49 50 68 and 16 scans per spectrum and were normalised at 2020 cm-1 at an absorption of 0.05, corresponding 51 52 cm-1, 69 to a film thickness of ca.”
Affatato 等 - 2012 - In vitro wear performance of standard, crosslinked DOI: 10.1002/jbm.a.33297 -
Hydroxyl (O-H) hyder 1.0
“In particular, the intramolecular OH stretching mode in the Materials2020,13,1100 12of16 4.”
Caccamo 等 - 2020 - Self-Assembly Processes in Hydrated Montmorillonit DOI: 10.3390/ma13051100 -
Alkyl C-H hyder 1.0
“The peak at 2020 a combination with a 4 band associated with the twisting of CH 2, was used as an internal standard, since it can be regarded as unaffected by minor changes in the polymer structure [20].”
Costa 等 - 2009 - Post electron-beam irradiation oxidation of orthop DOI: 10.1016/j.polymdegradstab.2009.04.023 -
Alkyl C-H hyder 1.0
“Moreover, also other bands (e.g., in the wavenumber regions of asymmetric ν(C-H)asym and symmetric ν(C-H)sym C-H stretching vibrations, Crystals2020,10,655”
Drzewicz 等 - 2020 - Vibrational Dynamics of a Chiral Smectic Liquid Cr DOI: 10.3390/cryst10080655 -
hyder 1.0
“assigned components at 2010, 1930 and 1875 to polynuclear Ni x(CO) y species formed upon agglomeration of mononuclear ones during the outgassing at RT, while bands at cm-1 2020, 1973 and 1915 were related to Ni x(CO) species with higher CO/”
Gopalakrishnan 等 - 2013 - Unravelling the structure and reactivity of suppor DOI: 10.1016/j.apcatb.2013.02.036
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