What absorbs at 780 cm⁻¹ in an FTIR spectrum?
A band near 780 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
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Alkyl C-H | 3 | 3 | 1.0 |
| Silicon-oxygen (Si-O) | 2 | 2 | 0.9 |
| Boron nitrogen | 2 | 1 | 0.9 |
| Metal oxygen | 1 | 1 | 0.9 |
| Carbonyl (C=O) | 1 | 1 | 0.8 |
| Siloxane (Si-O-Si) | 1 | 1 | 0.8 |
排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。
這些指派背後的文獻
-
Alkyl C-H 信心 1.0
“Strong peak at 780 cm-1 assigned to out-of-plane vibration (C-H).”
Umar 等 - 2022 - Polythiophenemultiwalled carbon nanotubesnitrate DOI: 10.2166/ws.2022.334 -
信心 0.9
“Strong band at 780 attributed to siloxane bonds.”
Azhar 等 - 2020 - Lignin-Coated PolystyreneTrichloromethylsilane Ab DOI: 10.17576/jsm-2020-4909-12 -
Boron nitrogen 信心 0.9
“Out-of-plane h-BN vibration mode.”
Bejarano 等 - 2006 - Deposition of B4CBCNc-BN multilayered thin films DOI: 10.1016/j.tsf.2005.08.192 -
Alkyl C-H 信心 0.9
“Text: 'C-H wagging peak at 780 cm-1'.”
Gradmann 等 - 2011 - Si and SiC nanocrystals in an amorphous SiC matrix DOI: 10.1002/pssc.201000176 -
信心 0.9
“Explicit: 'γ-Al 780 for 2O' (likely γ-Al2O3)”
Lefez 等 - 2007 - Fourier transform infrared reflection absorption s DOI: 10.1016/j.tsf.2007.06.126 -
信心 0.9
“Explicitly assigned to Ge-O.”
Polosan 等 - 2011 - Structural changes during the crystallization of t DOI: 10.1016/j.jnoncrysol.2010.10.016 -
Silicon-oxygen (Si-O) 信心 0.9
“Explicit assignment as above.”
Uda 等 - 2021 - Production and characterization of silica nanopart DOI: 10.1080/10826068.2020.1793174 -
信心 0.9
“Band at 780 cm-1 characteristic of vibrations of V-O-H groups.”
Besnardiere 等 - 2016 - Nanoparticles of Low-Valence Vanadium Oxyhydroxide DOI: 10.1021/acs.inorgchem.6b02059
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