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
可能性のある官能基アサイン
| 官能基 | 裏付け事実 | 引用元 | 最高信頼度 |
|---|---|---|---|
| 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 |
ランキングは蓄積された文献証拠を反映しており、単一の権威あるルールではありません。常にサンプルのコンテキストと照合して確認してください。
これらのアサインの根拠となる文献
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Silicon-oxygen (Si-O) 信頼度 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) 信頼度 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) 信頼度 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 信頼度 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 信頼度 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 信頼度 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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