What absorbs at 3203 cm⁻¹ in an FTIR spectrum?
A band near 3203 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 3 cited sources
Mögliche Funktionsgruppenzuweisungen
| Funktionelle Gruppe | Unterstützende Fakten | Zitierte Quellen | Höchstes Vertrauen |
|---|---|---|---|
| Hydroxyl (O-H) | 3 | 2 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 0,7 |
| N h | 1 | 0 | 0,8 |
Das Ranking spiegelt die gesammelte Literatur Evidenz wider, nicht eine einzelne maßgebliche Regel. Bestätigen Sie immer anhand Ihres Probenkontexts.
Literatur hinter diesen Zuweisungen
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Water (H2O) Vertrauen 1,0
“cation, which are assigned to the water molecules weakly hydrogen-bonded with ClO However, the negative cm(cid:1)1 peaks appear at 3203, 3196, and 3254 for LiClO 4, NaClO 4, and Mg(ClO 4) solutions, respectively, and the peak areas show sig”
Chen 等 - 2004 - ATR-FTIR spectroscopic studies on aqueous LiClO4, DOI: 10.1039/B311768E -
Carboxyl (COOH) Vertrauen 1,0
“The infrared spectrum of H 3pdca cm-1 ium atoms through monodentate, bidentate-bridging and displays a relatively strong band at 3203 assigned to bidentate-chelating carboxylate groups and one nitrogen the stretching vibrations of OH from t”
Effect of Different Synthesis Approaches on Structural and Thermal Properties of Lanthanide(III) Metal–Organic Frameworks Based on the 1H-Pyrazole-3,5-Dicarboxylate Linker DOI: 10.1007/s10904-021-02018-w -
Hydroxyl (O-H) Vertrauen 0,7
“Text: 'stretching (3,203 cm-1) O-H C-H'”
A comparative study of meat quality and vibrational spectroscopic properties of different chicken breeds DOI: 10.1016/j.psj.2022.101829
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