What absorbs at 889 cm⁻¹ in an FTIR spectrum?
A band near 889 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 |
|---|---|---|---|
| Carbohydrate | 2 | 2 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Ring structure | 1 | 1 | 1,0 |
| C c single bond | 1 | 0 | 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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Carbohydrate độ tin cậy 1,0
“The characteristic bands of β-glucan are at 1156, 1076, 889cm-1.”
Liu 等 - 2006 - A study of the mushrooms of boletes by Fourier tra DOI: 10.1117/12.667136 -
Ring structure độ tin cậy 1,0
“The weak band at 923 can be cm(cid:2)1, ascribed to the NH twisting, followed by a weak band at 889 which is related 3 cm(cid:2)1 to the ring deformation.”
Synthesis, crystal structure, and characterization of cyclohexylammonium tetraisothiocyanatocobaltate(II): A single-source precursor for cobalt sulfide and oxide nanostructures DOI: 10.1016/j.heliyon.2019. -
Carboxyl (COOH) độ tin cậy 1,0
“Bands at 2916, 2848, 889 cm-1 spectra of libraries, but in this case, these shifts could be ascribed to a can be ascribed to stearic acid, usually added to 1710, and 1472 siliconeand other polymers asstabilizingagent[21].”
Non-invasive identification of plastic materials in museum collections with portable FTIR reflectance spectroscopy: Reference database and practical applications DOI: 10.1016/j.microc.2015.07.016 -
Carbohydrate độ tin cậy 1,0
“The infrared spectra of from oats and barley cm-1 showed a broad peak at a wavelength of 3000-3500 corresponding to OH groups, cm-1 cm-1 2922-3000 corresponding to C-H stretch, 1654.55 corresponding to bending cm-1 vibrations of bound water”
Shah 等 - 2022 - Encapsulation of Catechin into beta-Glucan Matrix DOI: 10.3390/foods11101493 -
Alkene (C=C) độ tin cậy 1,0
“The signals cm-1 C-H C-H out-of-plane at 3079 and 889 cm-1 were induced by C=C stretch and bend of terminal at 3079 and 889 were induced by C=C stretch and out-of-plane bend of terminal vinyl groups, respectively, characteristic of limonene”
Rapid Classification and Recognition Method of the Species and Chemotypes of Essential Oils by ATR-FTIR Spectroscopy Coupled with Chemometrics DOI: 10.3390/molecules27175618 -
Hydroxyl (O-H) độ tin cậy 1,0
“∼899cm-1 to Ge-OH stretching motion, and the band at correspondstoGe-O-Gestretchingmotion.Thetwostretch- ∼889cm-1 ∼550 and are ing vibration bands located at 2.2.”
Wu 等 - 2011 - Simple Synthesis and Luminescence Characteristics DOI: 10.1155/2011/841701
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