What absorbs at 614 cm⁻¹ in an FTIR spectrum?

Hiter odgovor

A band near 614 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.

Možne dodelitve funkcionalnih skupin

Razvrstitev odraža zbrane literaturne dokaze, ne enega avtoritativnega pravila. Vedno preverite glede na kontekst vašega vzorca.

Možni materiali

Materiali so prikazani le, ko ista literaturna podlaga podpira ta pas in vsaj en dodatni karakteristični vrh.

Logika spektra

This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 614 cm⁻¹ is usually not enough for material identification by itself.

Uporaba v resničnem svetu

Ta vrsta poizvedbe je pogosta pri identifikaciji polimerov, pregledovanju neznanih plastičnih mas, odpravljanju težav pri QC, preverjanju recikliranih materialov in literaturno podprtem pregledu dodelitev vrhov.

Pogoste napake

• Obravnavanje enega izoliranega pasu kot dokaza o materialu brez preverjanja vsaj enega ali dveh podpornih vrhov.
• Ignoriranje prekrivanja: več funkcionalnih skupin lahko prispeva blizu istega valovnega števila.
• Izpuščanje validacije, ko lahko dodatki, mešanice, oksidacija ali kontaminacija popačijo spekter.

Nasvet za preverjanje

Ko ostaja dvoumnost, potrdite hipotezo z DSC, GC-MS ali TGA, zlasti za mešanice, degradirane vzorce in polnjene polimere.

Literatura za temi dodelitvami

• Silicon (Si) zaupanje 1,0

  “The IR absorption cm(cid:0) cm(cid:0) 1 1 and 1109 were noted on both bands centered around 614 pristine and irradiated samples, which correspond to the Si-Si bond and Si-O-Si -22].”

  Ion beam induced modification and nanostructures formation in thin SiC/Pd films on c-Si substrate DOI: 10.1016/j.nimb.2021.01.018
• Ester zaupanje 1,0

  “were present in both FTIR spectra of plant extract and FeNPs, such as alkyl halides, alkynes, aromatics and aliphatic amines, esters, ethers, alcohol, carboxylic acids, and nitro Nanomaterials2022,12,2404 11of25 compounds with peaks at 526.”

  Green Synthesis and Characterization of Iron Nanoparticles Synthesized from Aqueous Leaf Extract of Vitex leucoxylon and Its Biomedical Applications DOI: 10.3390/nano12142404
• Alkyl C-H zaupanje 1,0

  “Trans -CH and cis -CH wagging modes may be seen at 958 and 614 cm-1 respectively.”

  Ramadan 和 Ismail - 2022 - Tunning the Physical Properties of PVDFPVCZinc F DOI: 10.21203/rs.3.rs-935328/v1
• zaupanje 1,0

  “With the 8:26:54 shi increase of the Mn content, the larger in the absorption cm(cid:3)1 x-ZnO peak at 614 may be ascribed to the doping of Mn.”

  Improved NO reduction by using metal–organic framework derived MnOx–ZnO DOI: 10.1039/d0ra04161k
• zaupanje 0,9

  “Band at 614 cm-1 corresponds to elongation vibration of S-O bond of sodium sulfate.”

  Anthropological and analytical studies of two Egyptian human mummies' heads from Deir-el-Medineh DOI: 10.1016/j.matlet.2022.133265
• Metal oxygen zaupanje 0,8

  “Assigned to octahedral site of cobalt oxide.”

  External magnetic field effects on the characteristics of cobalt nanoparticles prepared by pulsed laser ablation DOI: 10.1007/s11082-020-02694-x
• zaupanje 0,8

  “Bands around 763 and/or 614 for alpha phase.”

  A critical analysis of the α, β and γ phases in poly(vinylidene fluoride) using FTIR DOI: 10.1039/c7ra01267e