What absorbs at 3303 cm⁻¹ in an FTIR spectrum?
A band near 3303 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
Penetapan kumpulan berfungsi yang mungkin
| Kumpulan berfungsi | Fakta sokongan | Sumber dipetik | Keyakinan tertinggi |
|---|---|---|---|
| Hydroxyl (O-H) | 5 | 4 | 1.0 |
| Carbohydrate | 1 | 1 | 0.7 |
Pemeringkatan mencerminkan bukti literatur terkumpul, bukan satu peraturan berwibawa. Sentiasa sahkan terhadap konteks sampel anda.
Literatur di sebalik penetapan ini
-
Hydroxyl (O-H) keyakinan 1.0
“Explicit assignment in text.”
Malik 等 - 2017 - Cross-linked beta-cyclodextrin and carboxymethyl c DOI: 10.1371/journal.pone.0172727 -
Hydroxyl (O-H) keyakinan 0.9
“Explicit assignment: 'due to OH vibrations were observed for all the samples at 3234, 3303, and 3363'”
Sanna 等 - 2013 - Investigation of the hydrozincite structure by inf DOI: 10.2138/am.2013.4158 -
Hydroxyl (O-H) keyakinan 0.9
“Characteristic absorption band of O-H stretching vibration centred on about 3303 cm-1.”
Illmann 等 - 2022 - Organic acid formation in the gas-phase ozonolysis DOI: 10.1039/d2cp03210d -
Carbohydrate keyakinan 0.7
“connected with starch spectrum, band at 3303”
Paluch 等 - 2022 - Structural and Thermal Properties of Starch Plasti DOI: 10.1007/s10924-021-02235-x -
Hydroxyl (O-H) keyakinan 0.7
“Similar to 3314; part of same region.”
Rata 等 - 2021 - Biocomposite Hydrogels for the Treatment of Bacter DOI: 10.3390/pharmaceutics13122079
Ada spektrum dengan jalur ini?
Muat naik spektrum FTIR anda dan dapatkan laporan tafsiran penuh — penetapan puncak dengan petikan literatur, padanan perpustakaan, dan rantaian bukti berkadar keyakinan — dalam beberapa saat.
Tafsir spektrum saya