Fluorine (C-F) — FTIR-absorptions-toppe og tildelinger

Hurtigt svar

Fluorine (C-F) 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 Fluorine (C-F)

Viser de 30 bedst understøttede toppe ud af 131 i alt for Fluorine (C-F).

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

• 1057 cm⁻¹ tillid 1,0

  “Another typical absorption cm-1 band of TA at 1057 is due to the stretching vibration of C-F.”

  Chitosan-Coated PLGA Nanoparticles Encapsulating Triamcinolone Acetonide as a Potential Candidate for Sustained Ocular Drug Delivery DOI: 10.3390/pharmaceutics13101590
• 1297 cm⁻¹ tillid 1,0

  “O-H bending vibration C-O 1297 1338 C-O stretching vibration C-F”

  Ganie 等 - 2020 - Synthesis and Characterization of a New Surface-Mo DOI: 10.1155/2020/8814260
• 1043 cm⁻¹ tillid 1,0

  “The transmittance bands at 1043.15 and 944.89 are due to C=C and C-F stretching respectively.”

  Haq 等 - 2018 - Fabrication of pure and moxifloxacin functionalize DOI: 10.1016/j.jphotobiol.2018.07.011
• 1147 cm⁻¹ tillid 1,0

  “The untreated by Ar gas plasma includes element of fluorine, carbon, and PTFE surface showed peaks of C-F groups at the 1147 and cm-1(Fig.”

  Lien 等 - 2011 - Preparation of glass fiber clothes reinforced poly DOI: 10.1007/s10965-010-9474-5
• 1063 cm⁻¹ tillid 1,0

  “Z.Mahmoodetal./SpectrochimicaActaPartA65(2006)445-452 451 558cm-1are 1063cm-1 to MCO bending vibration and band observed at and the C-F stretching bands are found at 1045 and”

  Mahmood 等 - 2006 - Comparative vapour phase FTIR spectra and vibratio DOI: 10.1016/j.saa.2005.11.024
• 530 cm⁻¹ tillid 1,0

  “cm-1 cm-1 cm-1 brations at 3639 cm-1 for -OH, 2860 cm-1 for -C-H, 2487 cm-1 for -C≡C-, 1625 cm-1 for -N-H, -C≡C-, vibrations at 3639 for -OH, 2860 for -C-H, 2487 for 1625 for cm-1 cm-1 cm-1 for -COOH, 1053 cm-1 for -C-F, and 530 cm-1 for Ca”

  Biosynthesis and Characterization of Calcium Oxide Nanoparticles from Citrullus colocynthis Fruit Extracts; Their Biocompatibility and Bioactivities DOI: 10.3390/ma16072768
• 1095 cm⁻¹ tillid 1,0

  “cm-1 cm-1 stretching vibrational bonds were observed at 1021 Furthermore, the peaks observed at 1095 and 1244 show amorphous phase of PVDF and stretching frequency of C-F bond.”

  Phogaat 和 Yepuri - 2023 - Performance enhancement of triboelectric nanogener DOI: 10.17586/2220-8054-2023-14-1-69-73
• 1271 cm⁻¹ tillid 1,0

  “The peak at about 1271 and 3478 were due in CP2, TP1, to OH stretching vibration of free acid groups and N-H TP2 and TP3 was assigned to C-F vibration.”

  Purushothaman 和 Bilal - 2014 - Development and characterization of homo, co and t DOI: 10.1515/polyeng-2013-0167