What absorbs at 953 cm⁻¹ in an FTIR spectrum?
A band near 953 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
Ateb cyflym
A band near 953 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.
Aseiniadau grŵp swyddogaethol posibl
| Grŵp swyddogaethol | Ffeithiau ategol | Ffynonellau a ddyfynnwyd | Hyder uchaf |
|---|---|---|---|
| Amide | 2 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| C n single bond | 1 | 1 | 1.0 |
| C-S single bond | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Metal oxygen | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
| C=n | 1 | 0 | 1.0 |
| N h | 1 | 0 | 1.0 |
Mae＇r safle＇n adlewyrchu tystiolaeth llenyddiaeth gronnwyd, nid rheol awdurdodol sengl. Cadarnhewch bob amser yn erbyn eich cyd-destun sampl.
Deunyddiau posibl
| Deunydd | Copaon ategol | Grwpiau sy＇n gorgyffwrdd | Ffynonellau a ddyfynnwyd |
|---|---|---|---|
| cellulose | 953, 1735, 1650 | Amide | 2 |
| hemicellulose | 953, 1730, 897 | Amide | 1 |
| biomass | 953, 1082, 1282 | Amide | 1 |
Mae deunyddiau＇n cael eu dangos dim ond pan fydd yr un gronfa lenyddiaeth yn cefnogi＇r band hwn ac o leiaf un brig nodweddiadol ychwanegol.
Rhesymeg sbectrwm
This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 953 cm⁻¹ is usually not enough for material identification by itself.
Defnydd yn y byd go iawn
Mae＇r math hwn o ymholiad yn gyffredin mewn adnabod polymer, sgrinio plastig anhysbys, datrys problemau QC, dilysu deunydd wedi＇i ailgylchu, ac adolygiad o aseiniad copa wedi＇i gefnogi gan lenyddiaeth.
Camgymeriadau cyffredin
- Trin un band ynysig fel prawf o ddeunydd heb wirio o leiaf un neu ddau gopa cefnogol.
- Anwybyddu gorgyffwrdd: gall grwpiau swyddogaethol lluosog gyfrannu ger yr un rhif ton.
- Hepgor dilysu pan fo ychwanegion, cymysgeddau, ocsideiddio, neu halogiad yn gallu ystumio＇r sbectrwm.
Cyngor dilysu
Pan fo amwysedd yn parhau, dilyswch y rhagdybiaeth gyda DSC, GC-MS, neu TGA, yn enwedig ar gyfer cymysgeddau, samplau dirywiedig, a pholymerau llawn.
Llenyddiaeth y tu ôl i＇r aseiniadau hyn
-
Silicon (Si) hyder 1.0
“3379cm-1 3381cm-1 mightbeduetoCa-Ostretchingvibrations,whiletheintense and are ascribed to Al-OH and AlSi1123cm-1 bands at 953 and OH/Li-vibrations, respectively [36], since Al3+ and Fe3+ attributed to Si-O strong 1389cm-1 replace the Si4+”
Ahmad 等 - 2021 - Spectroscopic Analysis for Harnessing the Quality DOI: 10.1155/2021/6629640 -
Alkyl C-H hyder 1.0
“Finally, the isopropanol peak 3 occurred at 953 cm-1 and it was assigned to the CH rocking mode [30].”
High Sensitivity Monitoring of VOCs in Air through FTIR Spectroscopy Using a Multipass Gas Cell Setup DOI: 10.3390/s22155624 -
Metal oxygen hyder 1.0
“The band at 953 is assigned to the W O stretching vibration in the octahedral cm-1 cm-1 tungsten peroxide species in UiO-67-WO(O 2) 2, and the bands centered at 573 and 531 are cm-1 attribute to the asymmetric and symmetric stretching vibra”
Transition Metal Oxodiperoxo Complex Modified Metal-Organic Frameworks as Catalysts for the Selective Oxidation of Cyclohexane DOI: 10.3390/ma13040829 -
Acetate hyder 1.0
“The 953 and 781 peaks represent the C-O h o”
A facile, sensitive and rapid sensing platform based on CoZnO for detection of fipronil; an environmental toxin. DOI: 10.1002/elan.202000051. -
Aromatic ring hyder 1.0
“In the Raman spectrum of CuPc, the bands between 100 and 1000 are due to macrocycle cm-1 vibrations, the band at 953 is attributed to the aromatic bending vibration of benzene, the band at cm-1 cm-1 1107 is due to the bending vibration in t”
Nolasco 等 - 2022 - Morphology, Chemical Characterization and Sources DOI: 10.21203/rs.3.rs-1166452/v1 -
C-S single bond hyder 1.0
“Paper RSC Advances cm(cid:3)1 cm(cid:3)1 around 1113 and 1199 correlates with the presence C-S of stretching vibration peak, while the substituted benzene cm(cid:3)1, C-S ring and bending peaks are observed at 953”
A comparison of experimental and theoretical studies of benzoquinone modified poly(thiophene): effect of polymerization techniques on the structure and properties DOI: 10.1039/d0ra07714c -
Amide hyder 1.0
“C-O stretching vibration ChCl-PHA 1082 C-O stretching 953 C-N stretching”
Zhuang 等 - 2020 - Observation of Potential Contaminants in Processed DOI: 10.3390/app10124345 -
hyder 0.9
“Assigned as band F in figure caption.”
Effect of different carbohydrates on the functional properties of black rice glutelin (BRG) modified by the maillard reaction DOI: 10.1016/j.jcs.2020.102979
Oes gennych sbectrwm gyda＇r band hwn?
Llwythwch eich sbectrwm FTIR i fyny a chael adroddiad dehongli llawn — aseiniadau brig gyda chyfeiriadau llenyddiaeth, cyfateb llyfrgell, a chadwyn dystiolaeth â gradd hyder — mewn eiliadau.