What absorbs at 3445 cm⁻¹ in an FTIR spectrum?
A band near 3445 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 |
|---|---|---|---|
| N h | 4 | 4 | 0.9 |
| Hydroxyl (O-H) | 3 | 3 | 1.0 |
| Silanol (Si-OH) | 2 | 2 | 1.0 |
| Amine primary | 2 | 2 | 0.9 |
| Water (H2O) | 1 | 1 | 1.0 |
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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Silanol (Si-OH) hyder 1.0
“Text: 'silanol groups and also adsorbed water appeared at 3445 cm-1'”
Babu 等 - 2017 - Removal of Lead from Water Using Calcium Alginate DOI: 10.1155/2017/4650594 -
Hydroxyl (O-H) hyder 1.0
“Explicit assignment in text.”
Catauro 和 Pacifico - 2017 - Synthesis of Bioactive Chlorogenic Acid-Silica Hyb DOI: 10.3390/ma10070840 -
hyder 0.95
“Text: 'Peaks at 3445, 3441, 3319, and 3318 are attributed to ... stretching from NIPAM units'”
Jadhav 等 - 2017 - Thermoresponsive copolymer-grafted SBA-15 porous s DOI: 10.3144/expresspolymlett.2017.11 -
Hydroxyl (O-H) hyder 0.9
“Text states 'O-H absorption bands at 3445'.”
Khanra 等 - 2014 - 7,7,8,8-Tetracyanoquinodimethane-assisted one-step DOI: 10.1039/c3nr05307e -
Amine primary hyder 0.9
“Band for primary amines.”
Ashraf 等 - 2018 - Synthesis of polyimides from alpha,alpha '-bis(3-a DOI: 10.1016/j.molstruc.2018.01.098 -
N h hyder 0.9
“Explicit assignment in text”
Farag 和 Mohamed - 2013 - Synthesis and Characterization of Carboxymethyl Ch DOI: 10.3390/molecules18010190 -
Hydroxyl (O-H) hyder 0.9
“Characteristic peak at 3445 cm-1 assigned to -OH group.”
Islam 等 - 2023 - Psidium guajava leaf extract mediated green synthe DOI: 10.1039/d3ra03381c -
Silanol (Si-OH) hyder 0.9
“Explicit assignment in text.”
Moeini 等 - 2022 - A Novel Pd-P Nano-Alloy Supported on Functionalize DOI: 10.3390/catal12010020
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