What absorbs at 1021 cm⁻¹ in an FTIR spectrum?
A band near 1021 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
Aseiniadau grŵp swyddogaethol posibl
| Grŵp swyddogaethol | Ffeithiau ategol | Ffynonellau a ddyfynnwyd | Hyder uchaf |
|---|---|---|---|
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 0.9 |
| C-O single bond | 1 | 1 | 0.9 |
| Silicon-oxygen (Si-O) | 1 | 1 | 0.9 |
| Carboxyl (COOH) | 1 | 1 | 0.7 |
Mae＇r safle＇n adlewyrchu tystiolaeth llenyddiaeth gronnwyd, nid rheol awdurdodol sengl. Cadarnhewch bob amser yn erbyn eich cyd-destun sampl.
Llenyddiaeth y tu ôl i＇r aseiniadau hyn
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Siloxane (Si-O-Si) hyder 1.0
“Peak at 1021 cm-1 assigned to symmetric vibration of Si-O-Si.”
Mir 等 - 2017 - Thermal, Rheological, Mechanical and Morphological DOI: 10.1007/s10924-016-0880-6 -
Hydroxyl (O-H) hyder 1.0
“Explicit assignment in text.”
Malik 等 - 2020 - ChitosanXanthan Gum Based Hydrogels as Potential DOI: 10.3389/fchem.2020.00050 -
Silicon-oxygen (Si-O) hyder 0.9
“Text states 'characteristic Si-O-C stretching frequencies at 1021-1082 cm-1'.”
Jung 和 Park - 2011 - Melt Copolymerization Reactions between 1,3-Bis(di DOI: 10.5012/bkcs.2011.32.4.1303 -
C-O single bond hyder 0.9
“Typical starch peak assigned to C-O stretch.”
Velasquez-Barreto 等 - 2019 - Esterification and Characterization of Starch From DOI: 10.1002/star.201800101 -
Phosphate (PO4) hyder 0.9
“assigned to υ3”
Forero-Sossa 等 - 2021 - Temperature effect in physicochemical and bioactiv DOI: 10.1038/s41598-021-89776-2 -
hyder 0.8
“Text: 'stretching vibrational bonds were observed at 1021'.”
Phogaat 和 Yepuri - 2023 - Performance enhancement of triboelectric nanogener DOI: 10.17586/2220-8054-2023-14-1-69-73 -
Carboxyl (COOH) hyder 0.7
“Explicit assignment: 'The absorption of the starch cm-1, is in the region of 900-1200 which is associated with the glycosidic vibrations 1-4 C-H (fold), C-O-H (fold)' and 'the correlation for this adulterant was The (ii) (CO/CC/COO/CH functional group)'.”
Conceicao 等 - 2019 - Use of FTIR-ATR Spectroscopy Combined with Multiva DOI: 10.21577/0103-5053.20180208 -
hyder 0.6
“Text: 'peak at 1021 cm-1 belongs to the high chain flexibility'.”
Aziz 等 - 2019 - Development of Polymer Blend Electrolyte Membranes DOI: 10.3390/ijms20133369
Oes gennych sbectrwm gyda＇r band hwn?
Llwythwch eich sbectrwm FTIR i fyny a chael adroddiad dehongli llawn — aseiniadau brig gyda chyfeiriadau llenyddiaeth, cyfateb llyfrgell, a chadwyn dystiolaeth â gradd hyder — mewn eiliadau.
Dehongli fy sbectrwm