What absorbs at 2898 cm⁻¹ in an FTIR spectrum?
A band near 2898 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 | 8 | 8 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Carbohydrate | 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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Alkyl C-H độ tin cậy 1,0
“CH symmetric stretch Lipids 2902 3 cm-1 CH symmetric stretch Lipids 2898 3 cm-1”
Salivary ATR-FTIR Spectroscopy Coupled with Support Vector Machine Classification for Screening of Type 2 Diabetes Mellitus DOI: 10.3390/diagnostics13081396 -
Carbohydrate độ tin cậy 1,0
“The IR crystallinity index was measured using an infrared absorption ratio of A 1368(C-Hbending)/A 2898(C-Hstretching), as proposed by Nelson and cm-1 O'Connor [55], since the band at 1372 is assigned to crystalline structure of cellulose,”
Cosma 等 - 2023 - Modification of Cotton and Leather Surfaces Using DOI: 10.3390/ma16041397 -
Acetate độ tin cậy 1,0
“The band at 897 and for control and historical 2899.88cm-1 2898.20cm-1 for the control sample, and at for the samples respectively belongs to C-O-C, C-C-O, and C-C-H”
Investigate the role of fungal communities associated with a historical manuscript from the 17th century in biodegradation DOI: 10.1038/s41529-022-00296-4 -
Alkyl C-H độ tin cậy 1,0
“A reduction in relative intensity of band HCU/g, treated pulps, the same was recorded at = 18.48°, cm-1, at 2898 representing the C-H stretching vibration 18.52°, 18.62° and 18.42°, respectively.”
A study elucidating the relation between cellulose dissolution and crystallinity after cellulase treatment at different doses DOI: 10.1007/s13205-021-02920-7 -
Hydroxyl (O-H) độ tin cậy 1,0
“As depicted in Figure 2, the broad peak at 3338 cm-1 which appears in both spectra is attributed to the O-H frequency, whereas the peaks at 2898 and cm-1”
Razak 等 - 2014 - The Influence of Chemical Surface Modification of DOI: 10.3390/molecules19032957 -
Alkyl C-H độ tin cậy 1,0
“LLM confirmed rule peak-group candidate”
Zhu 等 - 2020 - Daylight-Active Cellulose Nanocrystals Containing DOI: 10.3390/ma13163547 -
Alkyl C-H độ tin cậy 0,9
“Band at 2898 cm-1 assigned to stretch CH”
Hydrothermal synthesis of bacterial cellulose–copper oxide nanocomposites and evaluation of their antimicrobial activity DOI: 10.1016/j.carbpol.2017.09.081 -
Alkyl C-H độ tin cậy 0,9
“assigned to stretching vibrations of -CH group”
Immobilization of Methyltrioxorhenium on Mesoporous Aluminosilicate Materials DOI: 10.3390/ma7042650
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