What absorbs at 1611 cm⁻¹ in an FTIR spectrum?
A band near 1611 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
Gán nhóm chức có thể
| Nhóm chức | Sự kiện hỗ trợ | Nguồn tham khảo | Độ tin cậy cao nhất |
|---|---|---|---|
| Alkene (C=C) | 2 | 2 | 1,0 |
| Carbonyl (C=O) | 1 | 1 | 1,0 |
| Protein beta sheet | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Adsorbed carbon monoxide | 1 | 1 | 1,0 |
Xếp hạng phản ánh bằng chứng tài liệu tích lũy, không phải một quy tắc duy nhất có thẩm quyền. Luôn xác nhận với ngữ cảnh mẫu của bạn.
Tài liệu tham khảo đằng sau các gán này
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Adsorbed carbon monoxide độ tin cậy 1,0
“comparetothatobservedonpuregalliumorceriumoxides.Inaddition to the bands mentioned above, the spectrum of CO adsorbed on CeGa-IC shows intense and sharp bands at 1611, 1390, and 1216cm-1, similar to those observed in the CO-Ga 2O spectrum.”
Effect of gallia doping on the acid⠍base and redox properties of ceria DOI: 10.1016/j.apcata.2010.08.050 -
Carboxyl (COOH) độ tin cậy 1,0
“Initially, the intensity of the asymmetric carboxylate peak positionedat1611cm-1increases,referringtoanincreasingnumberof to zirconium-treatment.”
Effect of organic additives in fluoacid-based Ti and Zr-treatments for galvanized steel on the stability of a polymer coated interface DOI: 10.1016/j.porgcoat.2020.105738 -
Alkene (C=C) độ tin cậy 1,0
“The band at 1611 cm-1 is attributed to the C=C cycloalkene bond.”
Comparative Evaluation of Anticorrosive Properties of Mahaleb Seed Extract on Carbon Steel in Two Acidic Solutions DOI: 10.3390/ma12183013 -
Alkene (C=C) độ tin cậy 1,0
“cm-1 Moreover, the spectrum of AMPSA presents some characteristic peaks: at 3236 and corresponding to N-H [32] stretching vibrations of the amide group, at 3101, 3035, and cm-1 1611 attributed to H-C=C stretching vibrations of the vinyl gro”
The Influence of Initiator Concentration on Selected Properties of Thermosensitive Poly(Acrylamide-co-2-Acrylamido-2- Methyl-1-Propanesulfonic Acid) Microparticles DOI: 10.3390/polym -
Protein beta sheet độ tin cậy 1,0
“Amyloid fibrils yield characteristic FTIR maxcm-1 cm-1, ima between 1611 and 1630 whereas peaks of native β-sheet proteins are typically”
MAK33 antibody light chain amyloid fibrils are similar to oligomeric precursors DOI: 10.1371/journal.pone.0181799 -
Carbonyl (C=O) độ tin cậy 1,0
“between the two oxygen atoms (on hydroxyl and carbonyl The bands assigned to the tropolone moiety group) in such a way that the resonance was possible (unsaturated resonant system of ring C) appear at 1611cm-1, cm-1, cm-1 1278cm-1 without z”
Kurek 和 Barczynski - 2016 - Colchiceine Complexes with Lithium, Sodium and Pot DOI: 10.5562/cca2871
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