What absorbs at 698 cm⁻¹ in an FTIR spectrum?
A band near 698 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 |
|---|---|---|---|
| Aromatic ring | 5 | 4 | 1,0 |
| Alkyl C-H | 3 | 3 | 1,0 |
| Hydroxyl (O-H) | 3 | 3 | 1,0 |
| Ring structure | 3 | 2 | 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 |
| Alkene (C=C) | 1 | 1 | 1,0 |
| Styrene | 1 | 1 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| N h | 1 | 1 | 1,0 |
| Methyl | 1 | 1 | 1,0 |
| Aldehyde (CHO) | 1 | 1 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
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Tài liệu tham khảo đằng sau các gán này
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Hydroxyl (O-H) độ tin cậy 1,0
“The are mainly enclosed in the cavities of the axially oriented 698cm-1 peak, which increases with a reduction in dichroism of the cm-1 O-H confirms CC phase), while the out-of-plane 717 peak is”
Golla 等 - 2021 - Isolated and aggregated carvacrol guest molecules DOI: 10.1038/s41428-021-00511-0 -
Aromatic ring độ tin cậy 1,0
“2 cm-1 cm-1 at 3026 and 3060 corresponded to aromatic C-H cm-1 cm-1 At the same time, the hydroxyl ion was produced in the stretching and the two peaks at 698 and 756 showed decomposition reaction and hydrogen was abstracted the pattern of”
Jamarosliza 等 - 2014 - Effect of reaction conditions on the thermal stabi DOI: 10.1515/polyeng-2013-0117 -
Aromatic ring độ tin cậy 1,0
“In FTIR spectra, the peaks appeared at 698 and 740 which indicates cm-1, the aromatic C-C angular deformation.”
Uner 等 - 2016 - Wood Waste Turned Into Value Added Products Therm DOI: 10.5552/drind.2016.1534 -
Aldehyde (CHO) độ tin cậy 1,0
“Finally, the band at 698 represents cho- /term”
Comparison of the Effects of Statins on A549 Nonsmall‐Cell Lung Cancer Cell Line Lipids Using Fourier Transform Infrared Spectroscopy: Rosuvastatin Stands Out DOI: 10.1002/lipd.12296 -
Amide độ tin cậy 1,0
“The 697.86 and C-N (amines), absorption peaks were assigned for stretch Figure 3a presents the UV spectra of”
Al-Zahrani 等 - 2021 - Green-synthesized silver nanoparticles with aqueou DOI: 10.1515/gps-2021-0067 -
Aromatic ring độ tin cậy 1,0
“Out-of-plane bending vibration 757 cm-1 C-H Aromatic ring bending 698 cm-1 Fe-O”
Influence of Waste Toner on Asphalt Binder: Chemical and Rheological Characterization DOI: 10.3390/molecules28062794 -
độ tin cậy 1,0
“Si or Al, symmetric stretching vibration of CO at about 2 cm-1, 873 symmetrically stretching vibration of Si-O at 698 cm-1,bendingvibrationofSi-O-Alat578cm-1 andin-plane cm-1 bending vibration of Si-O-Si and O-Si-O at 453 respectively as in”
Meng 等 - 2021 - Effects of load types and critical molar ratios on DOI: 10.1515/rams-2021-0019 -
Ring structure độ tin cậy 1,0
“on cm-1 cm-1, PORTUGAL band at 698 computations also provided a value of 1032 for a probably due to ring puckering, being the 2008 combination of the only exception.”
Low-Temperature FTIR Spectroscopic and Theoretical Study on an Energetic Nitroimine: Dinitroammeline (DNAM) DOI: 10.1021/jp711153g
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