Metal sulfur — FTIR-absorptions-toppe og tildelinger

Hurtigt svar

Metal sulfur 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 Metal sulfur

Mulige materialer

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

• 600 cm⁻¹ tillid 1,0

  “FTIR results reveals that a strong band appeared around 600 is due to Cd-S bonds.”

  Water remediation capability of cubic-phase CdS nanoparticles as photocatalyst on photodegradation of aqueous rhodamine 6G dye under UV irradiation DOI: 10.15251/DJNB.2023.181.203
• 1000 cm⁻¹ tillid 1,0

  “The Fourier Transform Infra Red (FTIR) peak at (cid:2)482 (cid:2)2.56 PACS: appeared due to the simultaneous presence of absorption peaks for CdTe stretching mode as well as Cd-S 78.66.Sq cm(cid:3)1 cm(cid:3)1 Appearance of the broad peak b”

  Utilization of residual CdCl2 in CBD-CdS to realize grain growth in CdTe: A novel route DOI: 10.1016/j.materresbull.2013.08.006
• 405 cm⁻¹ tillid 1,0

  “LLM confirmed rule peak-group candidate”

  60MeV Ni ion induced modifications in nano-CdS/polystyrene composite films DOI: 10.1016/j.radphyschem.2013.06.022
• 670 cm⁻¹ tillid 1,0

  “LLM confirmed rule peak-group candidate”

  Probing How Various Metal Ions Interact with the Surface of QDs: Implication of the Interaction Event on the Photophysics of QDs DOI: 10.1021/acs.langmuir.1c00548
• 1647 cm⁻¹ tillid 1,0

  “A relatively strong and broad FTIR peaks at 1647 and 670 were observed due to the Cd-S bending and stretching vibration in the surfactant mediated films.”

  Effect of Triton X-100 surfactant on thiol-amine cosolvents assisted facile synthesized CdS thin films on glass substrate by spin coating method DOI: 10.1007/s42452-020-2423-y
• 453 cm⁻¹ tillid 1,0

  “An additional cm(cid:1)1 Mo-S appears at 1116.4 and the characteristics peaks of cm(cid:1)1, peak is observed at 453.35 which corresponds to the cm(cid:1)1 cm(cid:1)1.”

  The functionalization of polyacrylamide with MoS 2 nanoflakes for use in transient photodetectors DOI: 10.1039/d0se01877e
• 405 cm⁻¹ tillid 1,0

  “And peak of the Cd-S bond at 405 was observed, which further testified the generation of CdS nanoparticles.”

  Wang 等 - 2007 - Synthesis and characterization of CdSPVA nanocomp DOI: 10.1016/j.apsusc.2007.04.020
• 1389 cm⁻¹ tillid 1,0

  “For MoS 2, the vibration cm-1 cm-1 mode at 1389 is assigned to Mo-S vibration, while the vibration mode at 1550 may be S-O asymmetric”

  Hydrothermal synthesis of novel 1-aminoperylene diimide/TiO2/MoS2 composite with enhanced photocatalytic activity DOI: 10.1038/s41598-020-78894-y