What absorbs at 1773 cm⁻¹ in an FTIR spectrum?
A band near 1773 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
Võimalikud funktsionaalrühmade määramised
| Funktsionaalrühm | Toetavad faktid | Tsiteeritud allikad | Kõrgeim usaldusväärsus |
|---|---|---|---|
| Amide | 3 | 3 | 1,0 |
| Carbonyl (C=O) | 2 | 2 | 1,0 |
| N h | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| Ketone | 1 | 1 | 1,0 |
| Ester | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
Reiting kajastab kogunenud kirjanduslikke tõendeid, mitte ühte autoriteetset reeglit. Kinnitage alati oma proovi kontekstis.
Nende määramiste taga olev kirjandus
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Amide usaldusväärsus 1,0
“The peak at 1674 is assigned to peaks at 1773 and 1805 belong to the carbonyl group of EC.57 the amide peak belonging to DMF.”
Yusuf 等 - 2016 - From crab shell to solar cell a gel polymer elect DOI: 10.1039/C6RA04188D. -
Acetate usaldusväärsus 1,0
“band at 1773 Since the strongest red shift of the C=O stretch among all dimer species N cm-1)”
FTIR matrix isolation and theoretical studies of glycolic acid dimers DOI: 10.1016/j.molstruc.2018.03.019 -
usaldusväärsus 1,0
“cm-1 (N-H bending vibration in -CONH-) of PAA also vanished in PI spectrum, while new cm-1 were accounted for the C=O asymmetric stretching, C=O symmetrical stretching, and C-N stretching vibration in -CONHand -COOHgroups) and 1604 (N-H ben”
Preparation of Solution Blown Polyamic Acid Nanofibers and Their Imidization into Polyimide Nanofiber Mats DOI: 10.3390/nano7110395 -
usaldusväärsus 0,9
“Text: 'bands at 1773 and 1713 cm-1 attributable to the pthalimido group'”
Synthesis and characterizations of phthaloyl chitosan-based polymer electrolytes DOI: 10.1016/j.jnoncrysol.2012.04.019 -
Carbonyl (C=O) usaldusväärsus 0,9
“Assigned to cefepime.”
Ali 等 - 2017 - Solid-State FTIR Spectroscopic Study of Two Binary DOI: 10.1155/2017/5673214
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