What absorbs at 3458 cm⁻¹ in an FTIR spectrum?
A band near 3458 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 |
|---|---|---|---|
| Hydroxyl (O-H) | 10 | 10 | 1,0 |
| C-O single bond | 3 | 3 | 1,0 |
| Methoxy (OCH3) | 2 | 2 | 1,0 |
| Methacrylate | 2 | 2 | 1,0 |
| Acetate | 2 | 2 | 1,0 |
| Hydrogen bond | 1 | 1 | 1,0 |
| Chitosan | 1 | 1 | 1,0 |
| C c single bond | 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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Hydroxyl (O-H) độ tin cậy 1,0
“C-H (aliphatic), and O-H are attributed to the bands at 1422, 1608, 2931, and 3420 cm-1 cm-1 cm-1 O-H stretching at 3458 and C-H stretching at 2902 are both absorption bands [26].”
Aziz 等 - 2022 - The Study of Ion Transport Parameters in MC-Based DOI: 10.3390/membranes12020139 -
Hydroxyl (O-H) độ tin cậy 1,0
“The broad spectrum of -OH vibration at 3458 almost all the vibration of oxygen-functional group, such as, C=O carbonyl and C-O epoxy is”
Sugianto 等 - 2019 - Facile Synthesis of Lycopene Reduced Graphene Oxid DOI: 10.1088/1757-899X/546/4/042044 -
Hydroxyl (O-H) độ tin cậy 1,0
“The hydroxyl band observed for the pure MC can be ascribed to the wavenumber region 3447-3458 cm-1, though the ether band needs to be at 1066 cm-1 and 1110 cm-1 [56].”
Synthesis of Polymer Nanocomposites Based on [Methyl Cellulose](1-x):(CuS)x (0.02 M x 0.08 M) with Desired Optical Band Gaps DOI: 10.3390/polym9060194 -
C c single bond độ tin cậy 1,0
“CH=CH, C=O, S=O (gliben- ---------- 2683 cm-1 The absorption peaks observed at 2412 and 793 are associated clamide) with C-C, CH, C-O, and OH bending vibrations, while the absorption NH asym stretching and OH 3458, 3295 ---------- cm-1 band”
Delgadillo-Armendariz 等 - 2014 - INTERACTIONS OF CHITOSANGENIPIN HYDROGELS DURING DOI: 10.5935/0100-4042.20140243 -
Hydroxyl (O-H) độ tin cậy 1,0
“[cm-1] Wave number Assignment a b 3458 3557 OH stretching”
Heidarieh 等 - 2014 - Preparation and anatomical distribution study of G DOI: 10.2478/nuka-2014-0019 -
Hydroxyl (O-H) độ tin cậy 1,0
“2 pump.Theformedelectrosprayedsamplesweredriedovernight 3 broad band at 3458 was attributed to O-H stretching due to the at room temperature and then separated from the surface of presence of water.”
Jahangiri 等 - 2022 - Dissolution improvement of binary solid dispersion DOI: 10.1093/biomethods/bpac001 -
Acetate độ tin cậy 1,0
“(O-H bond) was found at 3457.7 stretching vibration for alcoholic C-O bond was found at 1120”
Liquid fuel oil produced from plastic based medical wastes by thermal cracking DOI: 10.1038/s41598-021-96424-2 -
Hydroxyl (O-H) độ tin cậy 1,0
“LLM confirmed rule peak-group candidate”
Sun 等 - 2020 - Electrosprayed Polymeric Nanospheres for Enhanced DOI: 10.2147/IJN.S235146
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