What absorbs at 3676 cm⁻¹ in an FTIR spectrum?
A band near 3676 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 5 cited sources
Možná přiřazení funkčních skupin
| Funkční skupina | Podpůrná fakta | Citované zdroje | Nejvyšší spolehlivost |
|---|---|---|---|
| Hydroxyl (O-H) | 4 | 4 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| N h | 1 | 1 | 1,0 |
Pořadí odráží nahromaděné literární důkazy, nikoli jediné autoritativní pravidlo. Vždy potvrďte v kontextu vašeho vzorku.
Literatura za těmito přiřazeními
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N h spolehlivost 1,0
“The absorption at cm1 3676 and 3695 in chitin and chitosan respectively are due to the NH and OH functional groups in both of them.”
Green Synthesis, Structural Characterization and Photocatalytic Activities of Chitosan-ZnO Nano‐composite DOI: 10.1007/s10904-021-01988-1 -
Hydroxyl (O-H) spolehlivost 1,0
“It is however worth to note that, differently to what previously reported for not functionalized UiOcm1 66 and UiO-67 [5, 6, 114], the band at 3676 associated to the 3-OH present at the Zr 6-octahedron do not disappeared completely by he”
Braglia 等 - 2017 - Exploring structure and reactivity of Cu sites in DOI: 10.1016/j.cattod.2016.02.039 -
Hydroxyl (O-H) spolehlivost 1,0
“cm-1 After the modification of talc with Fe 3O 4, a small and sharp band at 3676 is attributed to the inner-surface O-H group stretching mode [36].”
Preparation and Characterization of Magnetite Talc (Fe3O4@Talc) Nanocomposite as an Effective Adsorbent for Cr(VI) and Alizarin Red S Dye DOI: 10.3390/ma15093401 -
Hydroxyl (O-H) spolehlivost 1,0
“to the symmetric vibration of carbon-oxygen-carbon or the stretching vibrational bands cm-1 of siloxane group from talc [31], whereas the band at 3676 could be assigned to cm-1 the vibrations of OH groups linked with Mg;”
Characterization and Combustion Behavior of Single-Use Masks Used during COVID-19 Pandemic DOI: 10.3390/ma14133501 -
spolehlivost 0,8
“Listed under same assignment.”
Kumar 等 - 2015 - Fourier transform infrared spectroscopy (FTIR) ana DOI: 10.1007/s13197-015-1959-0
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