What absorbs at 1262 cm⁻¹ in an FTIR spectrum?
A band near 1262 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
Penetapan kumpulan berfungsi yang mungkin
| Kumpulan berfungsi | Fakta sokongan | Sumber dipetik | Keyakinan tertinggi |
|---|---|---|---|
| C-O single bond | 8 | 7 | 1.0 |
| Methoxy (OCH3) | 7 | 6 | 1.0 |
| Methacrylate | 7 | 6 | 1.0 |
| Acetate | 7 | 6 | 1.0 |
| Secondary amine | 3 | 2 | 1.0 |
| Amide | 3 | 2 | 1.0 |
| Phosphate (PO4) | 2 | 2 | 1.0 |
| C n single bond | 2 | 1 | 1.0 |
| Alkyl C-H | 2 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Lipid | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Nucleic acid | 1 | 1 | 1.0 |
| Oxygen heterocycle | 1 | 1 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 0.9 |
| Methyl | 1 | 0 | 1.0 |
| Silicon carbon | 1 | 0 | 1.0 |
| Silicon (Si) | 1 | 0 | 1.0 |
Pemeringkatan mencerminkan bukti literatur terkumpul, bukan satu peraturan berwibawa. Sentiasa sahkan terhadap konteks sampel anda.
Literatur di sebalik penetapan ini
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Carbohydrate keyakinan 1.0
“The band at 1262 is assigned as -COH in the plane at C-2 and C-3 in cellulose-I and cellulose-II, and it indicates the coexistence of cellulose-I and cellulose-II cm-1 cm-1 in ANFs and RCFs.”
Bian 等 - 2021 - Crystalline Structure Analysis of All-cellulose Na DOI: 10.1007/s10570-017-1259-0 -
Phosphate (PO4) keyakinan 1.0
“Furthermore, the asymmetric stretching vibration band of P-O-P (at 1262 265 initially shifted to a higher wavenumber (1273 cm-1) when the 266 concentration of yttrium is 0.5 mol.”
Bouabdalli 等 - 2023 - First examination of the influence of Y3+ ions on DOI: 10.21203/rs.3.rs-2052185/v1 -
Acetate keyakinan 1.0
“The band at 1262 is attributed to the asymmetric and symmetric stretching vibration of (C-O-C) groups belonging to 2-substituted furan rings.”
Edwards 等 - 2018 - Analysis of chemical polymerization between functi DOI: 10.1590/0104-1428.07016 -
Amide keyakinan 1.0
“stretching of C-N and C=C from acrylic acid at 1262 cm-1.”
Synthesis and in vitro characterizations of porous carboxymethyl cellulose-poly(ethylene oxide) hydrogel film DOI: 10.1186/s40824-015-0033-3 -
C-O single bond keyakinan 1.0
“ester -C-O-C stretch1262, 1255125512601260ing vinyl 1259 1259 1262 1263, 1229 1236 1236 1227 1229 1229 1238 1238”
Mikolaszek 等 - 2022 - Microscopic and Spectroscopic Imaging and Thermal DOI: 10.3390/polym14142888 -
Nucleic acid keyakinan 1.0
“The peak at 1262 ternal (IEL) and external elastic lamina (EEL) that could facilitate acthat corresponds to nucleic acid and lipid content has also been assoconfidence.”
Label-Free Discrimination Analysis of De-Differentiated Vascular Smooth Muscle Cells, Mesenchymal Stem Cells and Their Vascular and Osteogenic Progeny Using Vibrational Spectroscopy DOI: 10.1016/j.bbamcr.2017.11.006 -
Acetate keyakinan 1.0
“In figure 4 (product-B), peak cm-1 C-O value approximately at 1262 corresponds to the stretching mode of bond in the cm-1 32(cid:2) CO group [40].”
Molla 等 - 2022 - Facile extraction and characterization of calcium DOI: 10.1098/rsos.220681 -
Acetate keyakinan 1.0
“• On addition of MWCNTs and further irradiation, appearance of additional peak at cm-1 1262 is observed which belongs to C-O stretching absorption.”
A Multi-Attribute Decision-Making Model for the Selection of Polymer-Based Biomaterial for Orthopedic Industrial Applications DOI: 10.3390/polym14051020
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