What absorbs at 1140 cm⁻¹ in an FTIR spectrum?
A band near 1140 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 8 cited sources
Možná přiřazení funkčních skupin
| Funkční skupina | Podpůrná fakta | Citované zdroje | Nejvyšší spolehlivost |
|---|---|---|---|
| Aromatic ring | 2 | 2 | 0,7 |
| C-O single bond | 2 | 1 | 0,9 |
| C n single bond | 1 | 1 | 1,0 |
| Nucleic acid | 1 | 1 | 0,9 |
| Silicon-oxygen (Si-O) | 1 | 1 | 0,9 |
| S eq o | 1 | 1 | 0,8 |
| Carbonyl (C=O) | 1 | 1 | 0,8 |
| Siloxane (Si-O-Si) | 1 | 0 | 0,9 |
Pořadí odráží nahromaděné literární důkazy, nikoli jediné autoritativní pravidlo. Vždy potvrďte v kontextu vašeho vzorku.
Literatura za těmito přiřazeními
-
C n single bond spolehlivost 1,0
“Explicit assignment in text.”
Inamuddin 和 Kashmery - 2019 - Polyvinylidene fluoridesulfonated graphene oxide DOI: 10.1038/s41598-019-46305-6 -
Silicon-oxygen (Si-O) spolehlivost 0,9
“Explicit assignment in text: '4 peaks arising from Si-O stretching vibrations in the region from 940 to cm21 1140'”
Loo 和 Gleason - 2004 - Investigation of polymer and nanoclay orientation DOI: 10.1016/j.polymer.2004.06.025 -
spolehlivost 0,9
“Explicit assignment: 'peak at 1140 for C-O glycosidic bond'”
Arunkumar 等 - 2021 - Antioxidant and cytotoxic activities of sulfated p DOI: 10.1007/s11694-020-00661-4 -
spolehlivost 0,9
“Text: 'broad band at 1140 corresponding to v S-O stretching'.”
Deviese 等 - 2017 - A multi-analytical approach using FTIR, GCMS and DOI: 10.1016/j.microc.2017.03.012 -
C-O single bond spolehlivost 0,9
“Text: '1140cm-1 C-O'”
Fernandez-Gomez 等 - 2023 - Effect of Multi-walled Carbon Nanotubes Functional DOI: 10.1093/micmic/ozad067.016 -
spolehlivost 0,9
“Explicit assignment: 'APTES-related peaks between 1010 and 1140 cm-1'.”
Sanchez-Lopez 等 - 2022 - Covalent immobilization of graphene oxide on biome DOI: 10.1016/j.matchemphys.2022.126296 -
Nucleic acid spolehlivost 0,9
“Text: 'RNA(1040-1140cm-1)'”
Srisongkram 等 - 2020 - Evaluation of Melanoma (SK-MEL-2) Cell Growth betw DOI: 10.3390/ijms21114141 -
spolehlivost 0,8
“Symmetric stretching mode of Q2 unit.”
Xu 等 - 2021 - Thermal, structural and electrical properties of f DOI: 10.1016/j.jallcom.2020.157191
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