What absorbs at 779 cm⁻¹ in an FTIR spectrum?
A band near 779 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 6 cited sources
Lehetséges funkcionális csoport hozzárendelések
| Funkcionális csoport | Támogató tények | Hivatkozott források | Legmagasabb megbízhatóság |
|---|---|---|---|
| Silicon-oxygen (Si-O) | 2 | 2 | 1,0 |
| Carbonate | 1 | 1 | 1,0 |
| Metal oxygen | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| C c single bond | 1 | 0 | 1,0 |
A rangsor a felhalmozott irodalmi bizonyítékokat tükrözi, nem egyetlen tekintélyes szabályt. Mindig ellenőrizze a minta kontextusában.
A hozzárendelések mögötti irodalom
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Silicon-oxygen (Si-O) megbízhatóság 1,0
“LLM confirmed rule peak-group candidate”
Preparation and Characterization of Low-Carbon Cementitious Materials Based on Soda-Residue-Activated Ground Granulated Blast-Furnace Slag: A Case Study on Cemented Paste Backfills DOI: 10.3390/met -
Silicon-oxygen (Si-O) megbízhatóság 1,0
“The sand dunes samples infrared absorption spectrum show the characteristic vibration bond peaks for quartz as 460, 695, 779 cm-1, cm-1.”
Mineralogical Analysis of Sand Roses and Sand Dunes Samples from Two Regions of South Algeria DOI: 10.1007/s12633-018-9974-1 -
Carboxyl (COOH) megbízhatóság 1,0
“1365 (Cu), 1360, 1321 C-2, C-2G, C-4, C4-G, C-5, D-1, F-1, F-4, Ca, Pb, Cu-oxalate J-2, J-3, J-3G, J-4, K-4 (Pb), 1321 (Ca) (-COO symmetric stretch), δwagging 779 (-COO) 1584 (Cu), 1577 (Ca), 1541 (Pb), 1539 (Ca),”
New Insights into the Medieval Hispano-Muslim Panel Painting: The Alfarje Found in a Balearic Casal (Spain) DOI: 10.3390/molecules28031235 -
Alkyl C-H megbízhatóság 1,0
“Another band cm-1 was observed at 779 which was attributed to CH vibration.”
Quality by Design (QbD) based process optimisation to develop functionalised particles with modified release properties using novel dry particle coating technique DOI: 10.1371/journal. -
Metal oxygen megbízhatóság 1,0
“1 Al-O stretching 779.24 779.24 775.38 1 Al-O stretching”
Blending Plastics Waste with Highly Available Jordanian Kaolin for Preparation of Alkali-Activated Mortars DOI: 10.3390/su142315742 -
Carbonate megbízhatóság 1,0
“The assignment of Co 2p peaks was literature:29 the peak at 779.4 eV corresponds to based on Co3+,”
Lukashuk 等 - 2018 - Operando Insights into CO Oxidation on Cobalt Oxid DOI: 10.1021/acscatal.8b01237
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