Sulfur — FTIR absorption peaks and assignments
These are the characteristic FTIR wavenumbers where Sulfur tends to absorb, compiled from published literature and ranked by supporting evidence. Each assignment is traceable to a source (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 8 cited sources
Hurtigt svar
Sulfur is usually assigned by looking for a recurring cluster of characteristic peaks rather than one exact textbook number. The table below shows where the literature most often places this group in FTIR, ranked by accumulated evidence.
Characteristic FTIR peaks for Sulfur
| Bølgetal (cm⁻¹) | Understøttende fakta | Citerede kilder | Højeste tillid |
|---|---|---|---|
| 1635 | 1 | 1 | 1,0 |
| 725 | 1 | 1 | 1,0 |
| 715 | 1 | 1 | 1,0 |
| 2159 | 1 | 1 | 1,0 |
| 1238 | 1 | 1 | 1,0 |
| 1000 | 1 | 1 | 1,0 |
| 2061 | 1 | 1 | 1,0 |
| 1075 | 1 | 1 | 1,0 |
| 1695 | 1 | 1 | 1,0 |
| 1175 | 1 | 1 | 1,0 |
| 500 | 1 | 1 | 1,0 |
| 2550 | 1 | 1 | 1,0 |
| 429 | 1 | 1 | 1,0 |
| 2556 | 1 | 1 | 1,0 |
| 1230 | 1 | 1 | 1,0 |
| 403 | 1 | 1 | 1,0 |
| 2585 | 1 | 1 | 1,0 |
| 1010 | 1 | 1 | 1,0 |
| 798 | 1 | 1 | 1,0 |
| 848 | 1 | 1 | 1,0 |
| 1598 | 1 | 1 | 1,0 |
| 2095 | 1 | 1 | 0,95 |
| 2870 | 1 | 1 | 0,9 |
| 644 | 1 | 1 | 0,9 |
| 1654 | 1 | 1 | 0,8 |
| 1614 | 1 | 1 | 0,8 |
| 471 | 1 | 1 | 0,8 |
| 532 | 1 | 1 | 0,8 |
| 517 | 1 | 1 | 0,8 |
| 780 | 1 | 1 | 0,8 |
Showing the 30 best-supported peaks of 36 total for Sulfur.
Spektrumlogik
En funktionel gruppetildeling bliver mere pålidelig, når flere forventede bånd optræder sammen. Brug denne side til at finde de stærkest understøttede toppe, 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
-
1598 cm⁻¹ tillid 1,0
“The peaks at 1598 and on both with binding energy 168.5eV, which is attributed to sulfur”
Li 和 Mu - 2005 - The electrochemical activity of sulfonic acid ring DOI: 10.1016/j.synthmet.2004.12.015 -
848 cm⁻¹ tillid 1,0
“Characteristic peak for sulfur detected in co-doped diamond.”
Li 等 - 2017 - Synthesis of n-type semiconductor diamond single c DOI: 10.1088/1757-899X/274/1/012131 -
798 cm⁻¹ tillid 1,0
“The peak around carbon-oxygen bonds in these structures which is mendisplacement occurred for the one at 798 cm -1 730 cm could be attributed to carbon-sulfur stretching vibration.”
A case study of poly (aryl ether sulfone) hemodialysis membrane interactions with human blood: Molecular dynamics simulation and experimental analyses DOI: 10.1016/j.cmpb.2020.105742 -
2585 cm⁻¹ tillid 1,0
“Another reduced peak was at the wavenumber of The maximum adsorption capacity was calculated using the UT 2585cm-1 which showed that sulfur groups were also responsible for 175 Y.”
Nemati 等 - 2019 - Microfluidics combined with ionic gelation method DOI: 10.1016/j.jenvman.2019.02.124 -
403 cm⁻¹ tillid 1,0
“This hypothesis is supported by the boiling The sequence of the next three exothermic peaks with maxima at 403 440 and ◦C 465 was associated with the vaporization of the gas mixture resulting from thermal point of sulfur being 444.6 °C [37-”
Photodegradation of Azathioprine in the Presence of Sodium Thiosulfate DOI: 10.3390/ijms23073975 -
1230 cm⁻¹ tillid 1,0
“keratin;14 the sharper peak at 1230 indicates 20(cid:2) of the down powder is other hand, the peak at some changes in sulfur-containing groups during lower and blunter than that of the down fiber, and the milling process.”
Xu 等 - 2009 - Characterization of Superfine Down Powder DOI: 10.1002/app.29205 -
2556 cm⁻¹ tillid 1,0
“cm-1 peak at about 2556.2 turns to be round, showing Attributing to the lone pair electrons in sulfur atom, the lone”
Specific interaction between fluorine atoms and thiol groups accounting for higher domain purity and photostability in narrowband BHJ systems DOI: 10.1002/polb.24849 -
429 cm⁻¹ tillid 1,0
“4 cm-1 429 band is related to the vibration of two tetrahedra (e) Geprop 3 that are connected through bridging sulfur at the corner cm-1 and the 376 is a companion band regarded to the tetrahedra.29 vibration of two edge-shared The bands 14”
De Salvi 等 - 2015 - New Flexible and Transparent Solution-Based German DOI: 10.5935/0103-5053.20150065
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