What absorbs at 3455 cm⁻¹ in an FTIR spectrum?
A band near 3455 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 4 cited sources
Penetapan kumpulan berfungsi yang mungkin
| Kumpulan berfungsi | Fakta sokongan | Sumber dipetik | Keyakinan tertinggi |
|---|---|---|---|
| Hydroxyl (O-H) | 3 | 2 | 0.95 |
| Metal hydroxyl | 1 | 1 | 0.95 |
| Amide | 1 | 1 | 0.9 |
| Water (H2O) | 1 | 1 | 0.9 |
Pemeringkatan mencerminkan bukti literatur terkumpul, bukan satu peraturan berwibawa. Sentiasa sahkan terhadap konteks sampel anda.
Literatur di sebalik penetapan ini
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Metal hydroxyl keyakinan 0.95
“Explicit assignment: 'broad peak at 3455 corresponds to stretching vibration of Ti-OH, the OH'”
Dahham 等 - 2018 - Synthesis and structural studies of an epoxidized DOI: 10.1016/j.polymertesting.2017.11.005 -
Water (H2O) keyakinan 0.9
“Broadband belongs to adsorbed H2O.”
Hadia 等 - 2014 - Effect of the Temperature on Structural and Optica DOI: 10.1166/jnn.2014.8861 -
Amide keyakinan 0.9
“Amide A band at 3455 cm-1 observed for native casein.”
Singh 等 - 2014 - Investigation of magnetically controlled water int DOI: 10.1186/s12951-014-0038-4 -
Hydroxyl (O-H) keyakinan 0.8
“Text: '3455cm-1, OeH asymmetric stretching'”
Monteiro 等 - 2018 - Incorporation of bentonite clay in cassava starch DOI: 10.1016/j.foodres.2017.11.030
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