What absorbs at 751 cm⁻¹ in an FTIR spectrum?
A band near 751 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
Võimalikud funktsionaalrühmade määramised
| Funktsionaalrühm | Toetavad faktid | Tsiteeritud allikad | Kõrgeim usaldusväärsus |
|---|---|---|---|
| Methoxy (OCH3) | 3 | 3 | 1,0 |
| Methacrylate | 3 | 3 | 1,0 |
| C-O single bond | 3 | 3 | 1,0 |
| Acetate | 3 | 3 | 1,0 |
| Metal oxygen | 2 | 2 | 1,0 |
| Chlorine | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Bromine | 1 | 1 | 1,0 |
| Carbon dioxide | 1 | 1 | 1,0 |
| Carbonate | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
Reiting kajastab kogunenud kirjanduslikke tõendeid, mitte ühte autoriteetset reeglit. Kinnitage alati oma proovi kontekstis.
Nende määramiste taga olev kirjandus
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Acetate usaldusväärsus 1,0
“≈815 al/C_O aliphatic/carbonyl group ratios CH out-of-plane peaks at and 751 As these regions for cutin isolated from”
Fossil cutin of Macroneuropteris scheuchzeri (Late Pennsylvanian seed fern, Canada) DOI: 10.1016/j.coal.2012.10.012 -
Metal oxygen usaldusväärsus 1,0
“The bands cm-1 at 750.8, 796.4, 751.0, 795.3, 750.9 and 795.5 for S01, S02, S03, S04, S05, and S06 indicate the cm-1 stretching and bending of Al-O-OH [40].”
Unique Halloysite Nanotubes–Polyvinyl Alcohol– Polyvinylpyrrolidone Composite Complemented with Physico–Chemical Characterization DOI: 10.3390/polym9060207 -
C c single bond usaldusväärsus 1,0
“The decrease in intensity with an increase of radiation dose from 409 to cm-1 570 kGy as observed in peaks at 751, 1141, 1239, and 1726 to a negative direction indicates the breaking of C-C, C-O-C, and C-C-O bonds [2].”
Prasad 和 Lal - 2023 - Spectroscopic Investigations of Optical Bandgap an DOI: 10.33263/BRIAC132.187 -
usaldusväärsus 1,0
“The peaks at around 210 ◦C ◦C peaks at 751 and 767 are due to the decomposition of calcium carbonate and release of CO2.”
Organic biopolymers of venus clams: Collagen-related matrix in the bivalve shells with crossed-lamellar ultrastructure DOI: 10.1016/j.bbrep.2021.100939 -
Bromine usaldusväärsus 1,0
“It to weak stretch of alkyl-amine C-N at 1109 It was observed in 25R-NBOH groups a degree of similarity was also observed strong absorption at a range of 751 to cm-1 with 25R-NBOMe, however, it was observed, as in Raman 756 due to Ar-R (R =”
Lucena 等 - 2022 - The Use of Single Crystal X-Ray Diffraction Techni DOI: 10.21577/0103-5053.20220130 -
Metal oxygen usaldusväärsus 0,9
“Assigned to m-ZrO2 νZr-O mode”
Acidity-Reactivity Relationships in Catalytic Esterification over Ammonium Sulfate-Derived Sulfated Zirconia DOI: 10.3390/catal7070204 -
usaldusväärsus 0,8
“Attributed to MoS2.”
Synthesis of Molybdenum Sulfide/Tellurium Hetero-Composite by a Simple One-Pot Hydrothermal Technique for High-Performance Supercapacitor Electrode Material DOI: 10.3390/nano11092346 -
usaldusväärsus 0,7
“band at 751 cm-1 assigned to ACH in propylene unit”
Nanocomposites based on silica-reinforced ethylene⠍propylene⠍diene⠍monomer/acrylonitrile⠍butadiene rubber blends DOI: 10.1016/j.compositesb.2011.02.008
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