What absorbs at 773 cm⁻¹ in an FTIR spectrum?
A band near 773 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 |
|---|---|---|---|
| Silicon-oxygen (Si-O) | 3 | 3 | 1.0 |
| Siloxane (Si-O-Si) | 2 | 2 | 1.0 |
| Silicon (Si) | 2 | 2 | 1.0 |
| Alkyl C-H | 2 | 2 | 1.0 |
| Silicon silicon | 1 | 1 | 1.0 |
| Metal oxygen | 1 | 1 | 1.0 |
| Ketone | 1 | 1 | 1.0 |
| N-O bond | 1 | 1 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 1.0 |
| Alkene (C=C) | 1 | 1 | 1.0 |
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
-
Silicon (Si) 信心 1.0
“Strong bands at 759cm-1 773cm-1 - was observed for LBGF glass respectively which attributes to (Si-O-Si) symmetric stretching The shift in band positions for LBGF glass can be observed as the [15].”
Development of Eu3+ doped Li2O-BaO-GdF3-SiO2 oxyfluoride glass for efficient energy transfer from Gd3+ to Eu3+ in red emission solid state device application DOI: 10.1016/j.jlumin.2018.07.009 -
Alkyl C-H 信心 1.0
“LLM confirmed rule peak-group candidate”
Study of biochar from pyrolysis and gasification of wood pellets in a nitrogen plasma reactor for design of biomass processes DOI: 10.1016/j.jece.2019.103391 -
Phosphate (PO4) 信心 1.0
“~ 633 Bending vibrations of V-O bonds ~724 (Q1) ~ 762 Stretching vibrations of P-O-P bonds ~ 773 (Q0) ~ 908 Bending vibrations of P-O-P bonds”
Andronache 和 Racolta - 2014 - Structural Investigation of MO center dot P2O5 cen DOI: 10.1063/1.4903024 -
N-O bond 信心 1.0
“Solutions of Al(NO but no bands at 773 or 790 3) 2O mixed with from [Al-HC(O)O] are formed”
Embrechts 等 - 2020 - In situ Raman and FTIR spectroscopic study on the DOI: 10.1039/c9ra09968a -
Alkyl C-H 信心 1.0
“cm-1, cm-1, The presence of the amorphous and crystalline matrix The peak value obtained at 1026.76 773.11 cm-1 before and after adsorption was assessed by X-ray difand 512.18 indicates the presence of Alkyl ketone, fraction, as shown in Fi”
Optimization of Cr (VI) removal from aqueous solution with activated carbon derived from Eichhornia crassipes under response surface methodology DOI: 10.1186/s13065-023-00913-6 -
信心 1.0
“ESI-MS molecular-ion peak 773.21, corresponding to H+ + 1H [Zn(L1) ].”
Gusev 等 - 2020 - Synthesis, Photoluminescence and Electrical Study DOI: 10.3390/ma13245698 -
Metal oxygen 信心 1.0
“A peak at x cm-1 773 was observed for the SnO-EtOH and SnO-MeOH films, which corresponds to a O-Sn-O cm-1 bond.26 2 The peak attained at around 960 for SnO-EtOH and SnO-MeOH thin films and 5”
Marikkannan 等 - 2015 - A novel synthesis of tin oxide thin films by the s DOI: 10.1063/1.4909542 -
Silicon-oxygen (Si-O) 信心 1.0
“LLM confirmed rule peak-group candidate”
A diamino-functionalized silsesquioxane pillared graphene oxide for CO2 capture DOI: 10.1039/d1ra00777g
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