Chlorine — FTIR-absorptions-toppe og tildelinger

Hurtigt svar

Chlorine 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 Chlorine

Viser de 30 bedst understøttede toppe ud af 171 i alt for Chlorine.

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

• 720 cm⁻¹ tillid 1,0

  “The peaks appearing near 720 corresponds to the C-Cl stretching mode and at a cm-1assigned 1048 to (C-O-C) stretching mode of PVC [44].”

  Arya 等 - 2018 - Effect of variation of different nanofillers on st DOI: 10.1007/s11581-016-1784
• 720 cm⁻¹ tillid 1,0

  “The peaks appearing near 720 corresponds to the C-Cl cm-1 stretching mode and at 1060 assigned to (C-C) stretching mode of PVC.”

  Arya 和 Sharma - 2018 - Structural, microstructural and electrochemical pr DOI: 10.1007/s11581-017-2364-7
• 2013 cm⁻¹ tillid 1,0

  “615cm21 important bands are those located at 1588, 1449, 1365, and due to C55C N-C55O stretching in chloroalkenes, pseudosymmetric stretching, respectively.[30] ring stretching in benzene and C-Cl stretching, 2013 June”

  Vibrational Spectrometry Strategies for Quality Control of Procymidone in Pesticide Formulations DOI: 10.1080/00387010500315843
• 822 cm⁻¹ tillid 1,0

  “Larvicidal Property of Green Synthesized Silver Nanoparticles against Vector Mosquitoes 5 cm(cid:1)1), production would be an appropriate for extending the biologstretching 1388.16 aliphatic amine group (C-N stretchcm(cid:1)1), ical route f”

  Larvicidal property of green synthesized silver nanoparticles against vector mosquitoes (Anopheles stephensi and Aedes aegypti) DOI: 10.1016/j.jksus.2015.10.006
• 1328 cm⁻¹ tillid 1,0

  “-1 corresponding to vibration bands of CS-nZVI in the range of 40 0 - 40 0 0 cm .The broad and intense -1 -1 -H peak around 3394 cm correspond to the presence of O stretching from alcohol, 1632 cm is -1 -O -H attributed to H bending, the pe”

  Bottom-up approach synthesis of core-shell nanoscale zerovalent iron (CS-nZVI): Physicochemical and spectroscopic characterization with Cu(II) ions adsorption application DOI: 10.1016/j.mex.2020.100976
• 3362 cm⁻¹ tillid 1,0

  “A sharp peak at 802 cm-1 that H stretching vibrations peak was found at 3362 that belongs to the peak of C-Cl stretching.”

  Physicochemical Characterization and Controlled Release Formulation on Intercalated 2-Methyl-4-chlorophenoxy Acetic Acid-Graphite Oxide (MCPA-GO) Nanocomposite DOI: 10.22146/ijc.40921
• 1157 cm⁻¹ tillid 1,0

  “Furthermore, the addition of POM cm-1 into PVA-GA induces a slight increase in peak intensity at 1083 corresponds to C-O-C stretching cm-1 cm-1 vibration and new peaks at 1157 and 775 indicate the existence of -CN and -C-Cl stretching vibra”

  Poly (vinyl alcohol)/glutaraldehyde/Premna oblongifolia merr extract hydrogel for controlled-release and water absorption application DOI: 10.1088/1757-899X/509/1/012048
• 663 cm⁻¹ tillid 1,0

  “Peak at 663 Tensile tests were performed according to ASTM D638 corresponds to the C-Cl stretching in PVC chains.”

  A study of poly vinyl chloride / poly(butylene adipate-co-terephthalate) blends DOI: 10.1007/s10965-010-9486-1