What absorbs at 521 cm⁻¹ in an FTIR spectrum?
A band near 521 cm⁻¹ can point to several functional groups. Below are the most likely assignments, ranked by how much published evidence supports each — every one traceable to literature (DOI) and cross-validated against our 130,000+ reference spectra and knowledge graph.
Backed by 4 cited sources
Möjliga identifieringar av funktionella grupper
| Funktionell grupp | Stödjande fakta | Citerade källor | Högsta förtroende |
|---|---|---|---|
| Silicon (Si) | 2 | 2 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
| Metalloid oxygen | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 0 | 1,0 |
Rankingen speglar ackumulerade litteraturbevis, inte en enda auktoritativ regel. Bekräfta alltid mot din provkontext.
Litteratur bakom dessa identifieringar
-
Metalloid oxygen förtroende 1,0
“The peak appeared at 521 (band C) is Te-O-Te configurations allocated to the bonds in bridging with 4.”
Gold nanoparticles assisted surface enhanced Raman scattering and luminescence of Er3+ doped zinc–sodium tellurite glass DOI: 10.1016/j.jlumin.2014.11.032 -
Silicon (Si) förtroende 1,0
“From the Raman spectral analysis, the pristine sample was characterized by a sharp peak at 521 cm(cid:0) 1 due to the c-Si substrate while the effect of the irradiation translated in the red-shifting and broadening of this peak;”
Ion beam induced modification and nanostructures formation in thin SiC/Pd films on c-Si substrate DOI: 10.1016/j.nimb.2021.01.018 -
Silicon (Si) förtroende 1,0
“Only PS particles of size 5 μm showed a peak at 1003 cm while smaller PS cm-1, particles showed a peak at 521, 800-1000 signifying the Raman signal of silicon only.”
Kundu 等 - 2021 - Identification and removal of microand nano-plas DOI: 10.1016/j.cej.2021.129816. -
Water (H2O) förtroende 1,0
“3,521<3,667 3,521 3,667 - C molecules interacting with the PLLA carbonyls, while the second 3,521<3,576 3,521 3,576 - C 3,628-3,521cm-1 couple at originates from a self-associated water species.”
Pannico 和 La Manna - 2019 - Sorption of Water Vapor in Poly(L-Lactic Acid) A DOI: 10.3389/fchem.2019.00275
Har du ett spektrum med detta band?
Ladda upp ditt FTIR-spektrum och få en fullständig tolkningsrapport – toppidentifieringar med litteraturhänvisningar, biblioteksmatchningar och en förtroendebedömd beviskedja – på sekunder.
Tolka mitt spektrum