What absorbs at 2895 cm⁻¹ in an FTIR spectrum?
A band near 2895 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 |
|---|---|---|---|
| Alkyl C-H | 4 | 4 | 1,0 |
| Hydroxyl (O-H) | 2 | 2 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| Ketone | 1 | 1 | 1,0 |
| Ester | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Carbonyl (C=O) | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Ring structure | 1 | 1 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
| N-O bond | 1 | 1 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| Chitosan | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 0,9 |
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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Chitosan độ tin cậy 1,0
“Similar peaks were also found in chitosan (3361cm-1, 2867cm-1), (3335cm-1, 2895cm-1) (3299cm-1, 2922cm-1 peanut shell and skin powder”
Meng 等 - 2020 - Effects of peanut shell and skin extracts on the a DOI: 10.1016/j.ijbiomac.2020.02.235 -
Hydroxyl (O-H) độ tin cậy 1,0
“ing (2895 H O H bending vibration of absorbed water”
Avila Ramirez 等 - 2014 - Surface esterification of cellulose nanofibers by DOI: 10.1016/j.carbpol.2014.08.020 -
Alkyl C-H độ tin cậy 1,0
“An additional strong peak was shown at 2895 1 due to the asymmetric stretching vibration of C-H of the pyranoid ring [36,37].”
Quality by Design (QbD) based process optimisation to develop functionalised particles with modified release properties using novel dry particle coating technique DOI: 10.1371/journal. -
Acetate độ tin cậy 1,0
“2 cm-1), cm-1), cm-1), 2895, and 2855 C=O stretching in esters (1750 C=C stretching (1660 cm-1), CH 2, and CH deformations (1460-1440 and 1305 and C-C and C-O stretching 3”
Assessment of Biotechnologically Important Filamentous Fungal Biomass by Fourier Transform Raman Spectroscopy DOI: 10.3390/ijms -
Alkyl C-H độ tin cậy 1,0
“While asymmetric and symmetric C-H stretching are attributed to the bands at 2895 and cm-1, 2927 respectively.”
An effective uranium removal using diversified synthesized cross-linked chitosan bis-aldehyde Schiff base derivatives from aqueous solutions DOI: 10.1007/s11356-022-23856-2 -
Hydroxyl (O-H) độ tin cậy 1,0
“3267 2887 1590 1406 1229 1009 , , and The absorption bands at 1367 3249cm-1 3600 3000 2400 1800 1200 600 in the FTIR spectra were due to O-H stretching (cm-1 2895cm-1 ) vibration of alcohol and phenol.”
Jemal 等 - 2017 - Synthesis, Characterization, and Evaluation of the DOI: 10.1155/2017/4213275 -
độ tin cậy 1,0
“de Carvalho Peaks at 2894.63 and 2919.7/cm is generally assigned to Mendes et al.”
Biofibres from biofuel industrial byproduct—Pongamia pinnata seed hull DOI: 10.1186/s40643-017-0144-x -
Alkyl C-H độ tin cậy 1,0
“The band at 2895 cm-1 corresponds to the elongation of the bond in CH, a”
Periquiteira (Cochlospermum orinocense): A Promising Amazon Fiber for Application in Composite Materials DOI: 10.3390/polym15092120
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