What absorbs at 1194 cm⁻¹ in an FTIR spectrum?
A band near 1194 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
Stutt svar
A band near 1194 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.
Mögulegar úthlutun virkra hópa
| Virkur hópur | Stuðningsstaðreyndir | Tilvitnuð heimildir | Mesta öryggi |
|---|---|---|---|
| Methoxy (OCH3) | 4 | 4 | 1,0 |
| Methacrylate | 4 | 4 | 1,0 |
| Acetate | 4 | 4 | 1,0 |
| C-O single bond | 3 | 3 | 1,0 |
| Phosphate (PO4) | 2 | 2 | 1,0 |
| Alkyl C-H | 2 | 1 | 1,0 |
| N-O bond | 2 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Methyl | 1 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Nitrogen heterocycle | 1 | 0 | 0,9 |
Röðun endurspeglar uppsöfnuð ritrýnisgögn, ekki eina valdboðsreglu. Staðfestu alltaf í samhengi við sýnið þitt.
Möguleg efni
| Efni | Stuðningstindar | Skarast hópar | Tilvitnuð heimildir |
|---|---|---|---|
| PVA | 1194, 1660, 2930 | Acetate, Methacrylate, C-O single bond | 1 |
| polyester | 1194, 1700, 1250 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
| biodiesel | 1194, 858, 3470 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
Efni birtast aðeins þegar sama bókmenntasafn styður þessa band og að minnsta kosti einn viðbótar einkennandi hámark.
Rófrök
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 1194 cm⁻¹ is usually not enough for material identification by itself.
Raunveruleg notkun
Þessi tegund fyrirspurna er algeng við auðkenningu fjölliða, skimun óþekktra plasttegunda, bilanaleit í gæðaeftirliti, staðfestingu endurunnins efnis og bókmenntabakkaða endurskoðun á hápunktum.
Algeng mistök
- Meðhöndla eina einangraða öldulengd sem sönnun á efni án þess að athuga að minnsta kosti einn eða tvo stuðningstoppa.
- Hunsa skörun: mörg virkir hópar geta lagt sitt af mörkum nálægt sömu bylgjutölunni.
- Að sleppa staðfestingu þegar aukefni, blöndur, oxun eða mengun geta brenglað litrófið.
Staðfestingarráðgjöf
Þegar tvíræðni er eftir, staðfestu tilgátuna með DSC, GC-MS eða TGA, sérstaklega fyrir blöndur, niðurbrotin sýni og fylltar fjölliður.
Ritlist á bak við þessar úthlutanir
-
N-O bond öryggi 1,0
“28 cm(cid:1)1 OMO-100, the peak at 1194 represents the stretching of licensed on Specication Sl no.”
Evaluation of the performance and emission and spectroscopic analysis of an improved soy methyl ester DOI: 10.1039/c9ra04342j -
Acetate öryggi 1,0
“In this spectrum, the sharp peak at 1194.43 is assigned to C-O-B stretching vibration, which confirmed the formation of crosslinking of PVA with BA [49, 50].”
Sprayed in-situ synthesis of Polyvinyl alcohol/Chitosan loaded Silver nanocomposite hydrogel for improved antibacterial effects DOI: 10.1016/j.ijbiomac.2019.09.186 -
Acetate öryggi 1,0
“FTIR spectroscopy peak absorbance in 1732.81 who is the peak absor- @ bance of carbonyl bond (C O) and two peaks absorbance cm(cid:2)1 m The chemical structure of bitumen is complex and bituof stretching vibration (1193.61 for and”
Li 等 - 2008 - The research of GMA-g-LDPE modified Qinhuangdao bi DOI: 10.1016/j.conbuildmat.2007.03.007 -
Phosphate (PO4) öryggi 1,0
“0 :2 6 Symmetric stretching vibrations of non-bridging ~ 1194 (Q2) oxygens O-P-O (Q2) ~ 1266 Symmetric stretching vibrations of P=O (Q2) ~ 1388 Asymmetric stretching vibrations of P=O”
Andronache 和 Racolta - 2014 - Structural Investigation of MO center dot P2O5 cen DOI: 10.1063/1.4903024 -
Phosphate (PO4) öryggi 1,0
“LLM confirmed rule peak-group candidate”
Dai 等 - 2020 - Effects of a Reactive Phosphorus-Sulfur Containing DOI: 10.3390/polym12071441 -
öryggi 1,0
“the peaks at cm-1 cm-1 cm-1 1194 and 1163 for aromatic C-N stretching vibrations.”
Unveiling the role of novel biogenic functionalized CuFe hybrid nanocomposites in boosting anticancer, antimicrobial and biosorption activities DOI: 10.1038/s41598-021-87363-z -
Acetate öryggi 1,0
“spectra have a C-H bond/wavelength with length ranging from 2800 to 3000 In cm-1 D50::S70:M30, and D50::S80:M20, the peak reported at 1194 is due to the stretching of O-CH 3, which is a trace of FAME.”
Hasnain 等 - 2023 - Performance, Emission, and Spectroscopic Analysis DOI: 10.3390/su15097415 -
Acetate öryggi 1,0
“All three cm-1 cm-1 azo compounds exhibit a specific peak at 1194 (Mono_A) and 1190 (Di_A C-O and Tris_A) corresponding to the band stretching phenol.”
Synthesis, Characterization, DFT Study and Antifungal Activities of Some Novel 2-(Phenyldiazenyl)phenol Based Azo Dyes DOI: 10.3390/ma15228162
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