S s — FTIR-absorptions-toppe og tildelinger
Dette er de karakteristiske FTIR-bølgetal, hvor S s 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
S s 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 S s
| Bølgetal (cm⁻¹) | Understøttende fakta | Citerede kilder | Højeste tillid |
|---|---|---|---|
| 515 | 2 | 2 | 1,0 |
| 2600 | 1 | 1 | 1,0 |
| 2550 | 1 | 1 | 1,0 |
| 560 | 1 | 1 | 1,0 |
| 674 | 1 | 1 | 1,0 |
| 443 | 1 | 1 | 1,0 |
| 558 | 1 | 1 | 1,0 |
| 1653 | 1 | 1 | 1,0 |
| 1032 | 1 | 1 | 1,0 |
| 1166 | 1 | 1 | 1,0 |
| 472 | 1 | 1 | 1,0 |
| 471 | 1 | 1 | 1,0 |
| 532 | 1 | 1 | 1,0 |
| 510 | 1 | 1 | 1,0 |
| 2318 | 1 | 1 | 1,0 |
| 1202 | 1 | 1 | 1,0 |
| 492 | 1 | 1 | 1,0 |
| 1344 | 1 | 1 | 1,0 |
| 1713 | 1 | 1 | 1,0 |
| 1600 | 1 | 1 | 1,0 |
| 612 | 1 | 1 | 1,0 |
| 603 | 1 | 1 | 1,0 |
| 460 | 1 | 1 | 1,0 |
| 432 | 1 | 1 | 1,0 |
| 1020 | 1 | 1 | 1,0 |
| 1260 | 1 | 1 | 1,0 |
| 590 | 1 | 1 | 1,0 |
| 1597 | 1 | 1 | 1,0 |
| 473 | 1 | 1 | 1,0 |
| 707 | 1 | 1 | 1,0 |
Viser de 30 bedst understøttede toppe ud af 44 i alt for S s.
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
-
2014 cm⁻¹ tillid 1,0
“22.88(cid:1)0.23 16.58(cid:1)0.33 29.09(cid:1)0.23 C S-S vibration(disulfides) 2014).”
Physico-chemodiversity variation between the most common calcareous red seaweed, Eastern Harbor, Alexandria, Egypt DOI: 10.1016/j.heliyon.2022.e12457 -
3850 cm⁻¹ tillid 1,0
“FT2O stretch, IR spectra showed that acticarbon had eight characteristic peaks, such as S-S stretch, H cm(cid:1)1, OAH ACAH C‚O C‚C CAH stretch, stretch, or stretch, CH bend, were at 3850 2”
Adsorption characteristics of sulfur solution by acticarbon against drinking-water toxicosis DOI: 10.1016/j.sjbs.2016.09.010 -
509 cm⁻¹ tillid 1,0
“SWSS topril and HSA as a noncovalent interaction, rather than S-S The peak at 509 or 510 cm-' related to formation also interchange reactions (21).”
Vibrational Spectroscopic Studies on the Disulfide Formation and Secondary Conformational Changes of Captopril–HSA Mixture after UV‐B Irradiation DOI: 10.1562/2005-04-25-RN-497 -
1409 cm⁻¹ tillid 1,0
“Peak A (1409 bands are CH while modes 20 and 21 are the in-phase and out-of-phase CH s s”
CH Mode Mixing Determines the Band Shape of the Carboxylate Symmetric Stretch in Apo-EDTA, Ca2+–EDTA, and Mg2+–EDTA DOI: 10.1021/acs.jpca.1c03061 -
530 cm⁻¹ tillid 1,0
“Among several electrodes, most cm-1 a new sharp band near 530 due to the formation of SS bonds widely used are carbon-based electrodes such as glassy carbon suggesting formation of formamidine disulfide (FD) ions.”
Heterogeneous Kinetics of Thiourea Electro‐Catalytic Oxidation Reactions on Palladium Surface in Aqueous Medium DOI: 10.1002/asia.202001016 -
1210 cm⁻¹ tillid 1,0
“In addition, the band f f cm-1 at 1183 in the S S and S S transitions, at shapes slightly changed, retaining an overall spectral 1 2 2 3 ∼1201 ∼1210 cm-1 and observed in all four transitions, feature;”
Monitoring Water Reactions during the S-State Cycle of the Photosynthetic Water-Oxidizing Center: Detection of the DOD Bending Vibrations by Means of Fourier Transform Infrared Spectroscopy DOI: 10.1021/bi801580e -
707 cm⁻¹ tillid 1,0
“LLM confirmed rule peak-group candidate”
Determination of alliin and allicin in the plant of Allium scorodoprasum L. subsp. rotundum by using the infrared spectroscopy technique DOI: 10.17660/ActaHortic.2016.1143.19 -
473 cm⁻¹ tillid 1,0
“473cm-1, S-S detected at assigned to be the stretching mode of IshiiM,ShibataK,NozakiH.JSolidStateChem1993;105:504-11.”
Characterization of copper sulfide nanostructured spheres and nanotubes synthesized by microwave-assisted solvothermal method DOI: 10.1016/j.matlet.2009.10.021
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