What absorbs at 1523 cm⁻¹ in an FTIR spectrum?
A band near 1523 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 |
|---|---|---|---|
| Amide | 8 | 8 | 1,0 |
| N h | 4 | 4 | 1,0 |
| Methacrylate | 2 | 2 | 1,0 |
| Ketone | 2 | 2 | 1,0 |
| Ester | 2 | 2 | 1,0 |
| Carboxyl (COOH) | 2 | 2 | 1,0 |
| Carbonyl (C=O) | 2 | 2 | 1,0 |
| Acetate | 2 | 2 | 1,0 |
| Hydroxyl (O-H) | 2 | 2 | 1,0 |
| Secondary amine | 2 | 2 | 1,0 |
| C n single bond | 2 | 2 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
| Protein beta sheet | 1 | 1 | 1,0 |
| N-O bond | 1 | 1 | 1,0 |
| Lignin | 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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Amide độ tin cậy 1,0
“The degradation index can be calculated by using FTIR peak cm(cid:1)1 cm(cid:1)1 C]O eCOe fitting 1640 (amide I, stretching), 1523 (amide II, data to quantify the degradation.”
The durability of clear polyurethane coil coatings studied by FTIR peak fitting DOI: 10.1016/j.polymdegradstab.2012.12.003 -
Hydroxyl (O-H) độ tin cậy 1,0
“1523 and (O-H stretch vibration) at 3022”
Akhgari 等 - 2013 - Indomethacin electrospun nanofibers for colonic dr DOI: 10.5681/apb.2013.014 -
độ tin cậy 1,0
“The characteristic mono-, di-, and triamine initiators put in relieve the number of urethane groups along the cm-1, υ(C=O) υ(C-O-C) carbonate signals of and around 1741 and 1222 respectively were (δ(N-H) υ(C-N)) PTMC chains with the increas”
Synthesis of Poly(Trimethylene Carbonate) from Amine Group Initiation: Role of Urethane Bonds in the Crystallinity DOI: 10.3390/polym13020280 -
Amide độ tin cậy 1,0
“The C-N stretching bands, combined with those of the bending of N-H in the plane, are typically observed at 1523 cm-1 and 1446 cm-1, demonstrating of the bending of N-H in the plane, are typically observed at 1523 cm-1 and 1446 cm-1, demons”
Gregori Valdes 等 - 2018 - Synthesis and Characterization of Isosorbide-Based DOI: 10.3390/polym10101170 -
Lignin độ tin cậy 1,0
“Factors describing crystallinity, C=C cm-1 Band (E) at 1523 represents bonds in the arosuch as the total crystallinity index ( T CI ) , lateral - 1 matic rings of lignin (27).”
Hejna 等 - 2017 - Performance properties of rigid polyurethane-polyi DOI: 10.1515/epoly-2017-0012 -
Acetate độ tin cậy 1,0
“Strong C-H symmetric stretching 1623 Strong C=O stretching 1523”
Jaisankar 等 - 2020 - Seed microstructures of the Andaman padauk (Pteroc DOI: 10.1007/BF02957854. -
N-O bond độ tin cậy 1,0
“The spectrum of CoAl 2O nanocomposites calcined at 1100 °C is also shown by FT-IR, with 4 cm-1 cm-1 3sharp bands between 2893 and 3335 (C-O and C-C vibration) and at 1523 (NO vibration).”
Synthesis and electrochemical performance of α-Al2O3 and M-Al2O4 spinel nanocomposites in hybrid quantum dot-sensitized solar cells DOI: 10.1038/s41598-022-21186-4 -
Amide độ tin cậy 1,0
“1554 60%N-Hbending,40%C-Nstretching AmideII(proteins) 1523 80%C=Ostretching,10%N-Hbending, Amide-I:parallelβ-sheets(peptide,protein) 1628”
Fourier-Transform Infrared Spectroscopy as a Discriminatory Tool for Myotonic Dystrophy Type 1 Metabolism: A Pilot Study DOI: 10.3390/ijerph18073800
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