What absorbs at 2575 cm⁻¹ in an FTIR spectrum?
A band near 2575 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 3 cited sources
Iespējamie funkcionālo grupu piešķīrumi
| Funkcionālā grupa | Atbalstošie fakti | Citētie avoti | Augstākā pārliecība |
|---|---|---|---|
| Aromatic ring | 1 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
| Thiol | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 0,8 |
Rangs atspoguļo uzkrātos literatūras pierādījumus, nevis vienu autoritatīvu noteikumu. Vienmēr apstipriniet atbilstoši parauga kontekstam.
Literatūra aiz šiem piešķīrumiem
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Thiol pārliecība 1,0
“CdC CdN cm-1(+)/2557 cm-1(-) A difference band at 2575 in H 2O Upon protonation of phycocyanobilin, a strong or cm-1 S-H is definitively assigned to a cysteine stretching mode, loses most of its intensity and would be band at 1571 showing a”
van Thor 等 - 2005 - Assignments of the Pfr-Pr FTIR difference spectrum DOI: 10.1021/jp052323t -
Alkyl C-H pārliecība 1,0
“The spectra of pure verapamil exhibits peaks at 2575 and cm-1 2541 (aldehydic C-H stretching), 2236 (C-N stretching”
Nagpal 等 - 2013 - Superporous hybrid hydrogels based on polyacrylami DOI: 10.4103/2230-973X.114906 -
pārliecība 0,8
“Text: 'Some O-D bonded to free OH groups and free COOH groups are found to be 2575'”
Insight into the interaction between hydrogen bonds in brown coal and water DOI: 10.1016/j.fuel.2018.09.119
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