Thiol — FTIR-absorptions-toppe og tildelinger
Dette er de karakteristiske FTIR-bølgetal, hvor Thiol har tendens til at absorbere, samlet fra offentliggjort litteratur og rangeret efter understøttende evidens. Hver tildeling kan spores til en kilde (DOI) og er krydsvalideret mod vores 320,000+ referencespektrer og vidensgraf.
Understøttet af 8 citerede kilder
Hurtigt svar
Thiol tildeles normalt ved at lede efter en tilbagevendende klynge af karakteristiske toppe frem for et præcist lærebogsnummer. Tabellen nedenfor viser, hvor litteraturen oftest placerer denne gruppe i FTIR, rangeret efter akkumuleret evidens.
Karakteristiske FTIR-toppe for Thiol
| Bølgetal (cm⁻¹) | Understøttende fakta | Citerede kilder | Højeste tillid |
|---|---|---|---|
| 2550 | 7 | 5 | 1,0 |
| 2570 | 5 | 5 | 1,0 |
| 2560 | 4 | 3 | 1,0 |
| 2573 | 3 | 2 | 1,0 |
| 1000 | 2 | 2 | 1,0 |
| 2600 | 2 | 2 | 1,0 |
| 2770 | 2 | 2 | 1,0 |
| 2929 | 2 | 2 | 1,0 |
| 980 | 2 | 2 | 1,0 |
| 800 | 2 | 2 | 1,0 |
| 970 | 2 | 2 | 1,0 |
| 2545 | 2 | 2 | 0,9 |
| 670 | 2 | 1 | 1,0 |
| 2565 | 2 | 1 | 1,0 |
| 2360 | 2 | 1 | 1,0 |
| 2554 | 1 | 1 | 1,0 |
| 2359 | 1 | 1 | 1,0 |
| 2255 | 1 | 1 | 1,0 |
| 1735 | 1 | 1 | 1,0 |
| 3274 | 1 | 1 | 1,0 |
| 2664 | 1 | 1 | 1,0 |
| 668 | 1 | 1 | 1,0 |
| 1022 | 1 | 1 | 1,0 |
| 1020 | 1 | 1 | 1,0 |
| 1044 | 1 | 1 | 1,0 |
| 2335 | 1 | 1 | 1,0 |
| 1160 | 1 | 1 | 1,0 |
| 1101 | 1 | 1 | 1,0 |
| 1717 | 1 | 1 | 1,0 |
| 1250 | 1 | 1 | 1,0 |
Viser de 30 bedst understøttede toppe ud af 109 i alt for Thiol.
Spektrumlogik
En funktionel gruppetildeling bliver mere sikker, når flere forventede bånd optræder sammen. Brug denne side til at finde de bedst understøttede peaks, og bekræft derefter, at den samme prøve udviser et sammenhængende mønster snarere end et enkelt isoleret hit.
Anvendelse i virkeligheden
Disse sider er nyttige til analyse af ukendte materialer, topforklaring i rapporter, polymerfejlfinding og verifikation af, om en kandidatmaterialefamilie er kemisk plausibel.
Almindelige fejl
- Brug af én funktionel-gruppe-side som en komplet materialebedømmelse uden at kontrollere resten af spektret.
- Antager, at det stærkeste bånd altid er det mest diagnostiske.
- At glemme, at forarbejdning, tilsætningsstoffer, ældning og blandinger kan flytte eller udvide forventede toppe.
Verifikationsrådgivning
Brug DSC, GC-MS eller TGA, når flere materialefamilier deler lignende bånd, eller når blandings-effekter gør FTIR-tildelingen usikker.
Litteratur bag disse tildelinger
-
980 cm⁻¹ tillid 1,0
“The appearance of new peaks around 975-985 and Accepted 1 May 2011 of cement paste has been attributed to the formation of two principal hydration products (C-S-H) and Available online 13 May 2011 2,respectively.Thereisastrongresemblanceofp”
Theoretical and experimental study of structures and properties of cement paste: The nanostructural aspects of C–S–H DOI: 10.1016/j.jpcs.2011.05.001 -
2360 cm⁻¹ tillid 1,0
“The medium doublet bands around 2360 revealed the typical S-H stretching of L-cysteine amino acid, which suggested the possible”
Mesoporous magnetite nanoparticles synthesis using the Peltophorum pterocarpum pod extract, their antibacterial efficacy against pathogens and ability to remove a pollutant dye DOI: 10.1016/j.molstruc.2018.10.042 -
2856 cm⁻¹ tillid 1,0
“The spectrometer was Fe3+ 2122 blanked with air at room temperature for the raw samples or with a 2550-2590 Cys S-H stretch 2856 Methylene C-H stretch clean piece of the white cotton T-shirt or white copier paper for 2920”
Rapid Presumptive “Fingerprinting” of Body Fluids and Materials by ATR FT‐IR Spectroscopy*,† DOI: 10.1111/j.1556-4029.2011.01870.x -
470 cm⁻¹ tillid 1,0
“The second silicate bands are 4 cm-1 in C-S-H broadly characterized as O-Si-O deformation or bending modes, which occur near 451 470cm-1 cm-1 667cm-1 and in C-A-S-H and the band 663 or is due to Si-O-Si bending vibrations.”
Morphology and Structure of Aluminum Substituted C-S-H Synthesized by Reaction of Alkali Silicate and Calcium Nitrate Aqueous Solution DOI: 10.4028/www.scientific.net/AMR.287-290.1193 -
3416 cm⁻¹ tillid 1,0
“LLM confirmed rule peak-group candidate”
Ibrahim 等 - 2022 - Effect of Ammonium Sulfide on Sulfidization Flotat DOI: 10.3390/min12101193 -
1711 cm⁻¹ tillid 1,0
“Spectrum of TAX cc cm-1 shows prominent peaks at 1711,2516 and 1031 which is assigned to Ester (C = O) linkage, A -SH stretching and C-O-C bond.”
Thiolation of arabinoxylan and its application in the fabrication of pH-sensitive thiolated arabinoxylan grafted acrylic acid copolymer DOI: 10.1080/03639045.2019.1569041 -
1555 cm⁻¹ tillid 1,0
“Thick horizontal bar shows S-H cm-1 the frequency region of the stretch known from the literature bands at 1555, 1504, 1404, 1352, 1270, and 1247 (38).”
Light-Induced Structural Changes in the LOV2 Domain of Adiantum Phytochrome3 Studied by Low-Temperature FTIR and UV−Visible Spectroscopy DOI: 10.1021/bi0345135 -
2557 cm⁻¹ tillid 1,0
“The TSA showed a peak of cm-1 thiol group at 2557.18 which was the characteristic of establishment of -SH bond and”
Thiolated sodium alginate conjugates for mucoadhesive and controlled release behavior of metformin microspheres DOI: 10.1016/j.ijbiomac.2020.08.116
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