What absorbs at 3698 cm⁻¹ in an FTIR spectrum?
A band near 3698 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 7 cited sources
Possibili assegnazioni di gruppi funzionali
| Gruppo funzionale | Fatti di supporto | Fonti citate | Affidabilità massima |
|---|---|---|---|
| Hydroxyl (O-H) | 7 | 6 | 1,0 |
| Metal hydroxyl | 1 | 1 | 1,0 |
La classifica riflette le prove bibliografiche accumulate, non una singola regola autorevole. Conferma sempre nel contesto del tuo campione.
Letteratura dietro queste assegnazioni
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affidabilità 1,0
“cm-1 OHintense peak around 3698 is attributed to the and MgO nanoparticles prepared SEM image of Mg(OH) antisymmetric stretching vibration in the crystal structure 2 using different solvents are shown in Fig.”
Mageshwari 和 Sathyamoorthy - 2012 - Studies on Photocatalytic Performance of MgO Nanop DOI: 10.1007/s12666-011-0106-5 -
affidabilità 1,0
“cm-1 Finally, the bands at ~3698 and 3620 (bands A and C, respectively) are due to AlAlOH stretching vibrations of kaolinite (Balan et al.”
Schingaro 等 - 2021 - New insights into the crystal chemistry of sauconi DOI: 10.2138/am-2020-7460. -
Hydroxyl (O-H) affidabilità 1,0
“Only three OH stretching vibrations were observed at 3698, 3652, and 3621 301 in ADE and the adjacent soil, pointing to the poorly crystalline nature of kaolinite (Fig.”
Weng 等 - 2020 - Black carbon enriches short-range-order ferrihydri DOI: 10.1016/j.scitotenv.2020.138195 -
Hydroxyl (O-H) affidabilità 1,0
“In the 1), FTIR spectrum of the halloysite clay mineral sample (spectrum the peaks at 3698 and cm-1 3623 were due to the stretching vibrations of the OH groups of the Al-OH.”
Enhancing the Thermal Stability of Ionogels: Synthesis and Properties of Triple Ionic Liquid/Halloysite/MCC Ionogels DOI: 10.3390/molecules26206198 -
Hydroxyl (O-H) affidabilità 1,0
“cm-1), cm-1 cm-1 region (4000~1330 the spectral bands at 3698 and 3448 were related to did not only delay the combustion of the asphalt binder, but it also reduced the combusthe OH stretching vibrations of brucite and water in various state”
Thermal Degradation Characteristics of Styrene-Butadiene-Styrene Copolymer Asphalt Binder Filled with an Inorganic Flame-Retarding Agent DOI: 10.3390/polym14183761 -
Hydroxyl (O-H) affidabilità 1,0
“d final pressure step to 1 mbar, the bands at 3698 and 3571 and 3200 The band assigned to the vibrations OH cm(cid:1)1 cm(cid:1)1, cm(cid:1)1.”
Muller 等 - 2004 - Interactions of water and methanol with MeAPO-5. F DOI: 10.1016/j.micromeso.2003.12.025 -
affidabilità 1,0
“The absorption bands at 3698 and 550 corresponding to Mg-OH cm-1 stretching vibrations revealed the existence of an Mg(OH) film.”
Wang 等 - 2017 - In Vitro Degradation of PureMagnesium-The Effects DOI: 10.3390/ma10070725
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