What absorbs at 1111 cm⁻¹ in an FTIR spectrum?
A band near 1111 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 |
|---|---|---|---|
| C-O single bond | 2 | 1 | 0.9 |
| Amide | 1 | 1 | 0.8 |
| Silicon-oxygen (Si-O) | 1 | 1 | 0.8 |
| Carbohydrate | 1 | 1 | 0.7 |
| Alkyl C-H | 1 | 0 | 0.6 |
Pemeringkatan mencerminkan bukti literatur terkumpul, bukan satu peraturan berwibawa. Sentiasa sahkan terhadap konteks sampel anda.
Literatur di sebalik penetapan ini
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C-O single bond keyakinan 0.9
“Sharp peak at 1110.9 indicated C-O bond.”
Fatma 等 - 2018 - Desorption and Re-Adsorption of Procion Red MX-5B DOI: 10.22146/ijc.23927 -
Silicon-oxygen (Si-O) keyakinan 0.8
“Text: 'a wide peak at 1111cm-1 ... attributed to Si-O stretching vibrations'”
Duraia 等 - 2010 - Preparation of highly aligned silicon oxide nanowi DOI: 10.1016/j.physb.2009.11.031 -
Amide keyakinan 0.8
“Bending peak found at 1111.4 cm-1.”
Verma 等 - 2021 - The functionalization of polyacrylamide with MoS2 DOI: 10.1039/d0se01877e -
Carbohydrate keyakinan 0.7
“Intensity decreased due to fungal decay, associated with crystalline cellulose.”
Hassan 和 Mansour - 2018 - A Microscopic Study of Paper Decayed by Trichoderm DOI: 10.1007/s10924-017-1147-6 -
keyakinan 0.7
“Band near 9 µm (approx. 1111 cm-1) assigned to ν2 + ν3 combination band.”
Charmet 等 - 2008 - Jet-cooled diode laser spectrum and FTIR integrate DOI: 10.1080/00268970802026709
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