What absorbs at 1141 cm⁻¹ in an FTIR spectrum?
A band near 1141 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
Gán nhóm chức có thể
| Nhóm chức | Sự kiện hỗ trợ | Nguồn tham khảo | Độ tin cậy cao nhất |
|---|---|---|---|
| C-O single bond | 8 | 8 | 1,0 |
| Methoxy (OCH3) | 6 | 6 | 1,0 |
| Methacrylate | 6 | 6 | 1,0 |
| Acetate | 6 | 6 | 1,0 |
| Alkyl C-H | 5 | 4 | 1,0 |
| Hydroxyl (O-H) | 2 | 2 | 1,0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1,0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| Silicon (Si) | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| Protein | 1 | 1 | 1,0 |
| Metal oxygen | 1 | 1 | 1,0 |
| N-O bond | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| N h | 1 | 1 | 1,0 |
| Oxygen heterocycle | 1 | 1 | 1,0 |
| Aromatic ring | 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
-
Aromatic ring độ tin cậy 1,0
“The strongest peak appears at 1141 which arise from the stretching cm-1 cm-1 vibration of C═N from quinoid ring protonated.”
International Conference on Innovation on Polymer Science and Technology DOI: 10.1088/1757-899X/223/1/012051 -
N h độ tin cậy 1,0
“The three sericin-PVA showed weak to aldehyde group with OH groups of the PVA chain medium, broad hydrogen-bonded bands that result from the or possibly the contribution of the remaining acetate groups of structure.23 overlap of free and bo”
Manesa 等 - 2022 - Fabrication and Characterization of Sericin-PVA Co DOI: 10.1021/acsomega.2c00897 -
Alkyl C-H độ tin cậy 1,0
“The band at 1141 is attrib(cid:2) group in uted to the C-H bending vibration of -CH The FTIR spectra of the thermally polymerized”
Surender 等 - 2014 - Bismaleimide and Bispropargyl Ether Blends Curing DOI: 10.1134/S1560090414050157 -
Acetate độ tin cậy 1,0
“While the peak at 1141 indicates the stretching of C-O cm-1 from the crystalline sequence of PVA, the peak at 1073 indicated the stretching of C-O from the amorphous sequence of PVA [23].”
Poly(vinyl alcohol) Nanocomposites Reinforced with Bamboo Charcoal Nanoparticles: Mineralization Behavior and Characterization DOI: 10.3390/ma8084895 -
Alkyl C-H độ tin cậy 1,0
“temperature is lower than 45 °C, which is attributed to the cm-1 C-H An important absorbance peak at 1141 is usually minor influence of the diffused water on the bonds.”
Xue 等 - 2015 - Moving-window two-dimensional correlation infrared DOI: 10.1007/s00216-015-9035-1 -
C-O single bond độ tin cậy 1,0
“but when sodium alginate was present in large quantities and was highly concentrated, three peaks that express the functional group's formula appeared, with absorption ranges cm-1 cm-1 of 1141 and 1268 due to the extended vibration of the C”
ALSamman 和 Sanchez - 2023 - Adsorption of Copper and Arsenic from Water Using DOI: 10.3390/polym15092192 -
Acetate độ tin cậy 1,0
“Finally, the bands at 1141 and 843 water, glycerol and diiodomethane on the PU As are due C-O-C expected, the hydrophilicity of the substrata increased with to the asymmetric and symmetric vibrations, PEG grafting density as shown by the wa”
Effect of PEG grafting density on surface properties of polyurethane substrata and the viability of osteoblast and fibroblast cells DOI: 10.1007/s10856-022-06668-1 -
N-O bond độ tin cậy 1,0
“Fe-O vibrational 1003cm-1 modes in FeOOH were ascribed at 1640, 1363, and for the PPy NPs peak at due to the out-of-plane 1141cm-1 in the PFFs spectra while there were no peaks in bending C-H bond [31, 34-36].”
Diauudin 等 - 2020 - Preparation and Characterisation of Polypyrrole-Ir DOI: 10.1155/2020/8762969
Có phổ với dải này không?
Tải lên phổ FTIR của bạn và nhận báo cáo diễn giải đầy đủ — gán đỉnh với tài liệu tham khảo, kết quả so khớp thư viện và chuỗi bằng chứng xếp hạng độ tin cậy — trong vài giây.
Diễn giải phổ của tôi