What absorbs at 820 cm⁻¹ in an FTIR spectrum?
A band near 820 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 8 cited sources
Mga posibleng pagtatalaga ng functional-group
| Functional group | Mga sumusuportang katotohanan | Mga nasiping sanggunian | Pinakamataas na kumpiyansa |
|---|---|---|---|
| Oxygen heterocycle | 2 | 2 | 1.0 |
| Sulfate (SO4) | 1 | 1 | 0.95 |
| Alkyl C-H | 1 | 1 | 0.9 |
| Silicon carbon | 1 | 1 | 0.9 |
| Silicon-oxygen (Si-O) | 1 | 1 | 0.9 |
| Metal oxygen | 1 | 0 | 0.9 |
Ang pagraranggo ay sumasalamin sa naipon na ebidensya ng literatura, hindi isang solong awtoritatibong tuntunin. Palaging kumpirmahin laban sa konteksto ng iyong sample.
Literatura sa likod ng mga pagtatalagang ito
-
Oxygen heterocycle kumpiyansa 1.0
“Peak of an epoxy group at 820 cm-1”
Abdullah 等 - 2016 - Polyesters Based on Linoleic Acid for Biolubricant DOI: 10.1371/journal.pone.0151603 -
Sulfate (SO4) kumpiyansa 0.95
“Explicit assignment: 'new absorption bands at 820 and 1260 ... introduction of the sulfate groups'”
Levdansky 等 - 2021 - Sulfation of arabinogalactan with sulfamic acid un DOI: 10.1007/s00226-021-01341-2 -
Silicon-oxygen (Si-O) kumpiyansa 0.9
“Si-O bending”
Chabane 等 - 2009 - Characterization of SiOF thin films deposited by P DOI: 10.4028/www.scientific.net/MSF.609.59 -
kumpiyansa 0.9
“Explicit assignment: 'deformation bands ... 820 cm-1 ... originating from PA'.”
Koziel-Trabska 等 - 2023 - Characterization of New Polymer Material of Amino- DOI: 10.3390/membranes13040447 -
Silicon carbon kumpiyansa 0.9
“Text: 'Si-CH3 rocking (820 cm-1)'”
Nakajima 等 - 2018 - Femtosecond Laser-Based Modification of PDMS to El DOI: 10.3390/nano8070558 -
kumpiyansa 0.9
“Explicit assignment in text: 'peak at 820 cm-1 corresponds to the vibration of an aromatic ring substituted at the positions 1 and 2'”
Paglia 等 - 2022 - Effect of ceramic nano-particles on the properties DOI: 10.1002/pc.26811 -
Alkyl C-H kumpiyansa 0.9
“Explicit assignment: '820 cm (CH'”
Pianorsi 等 - 2017 - Organogels for the cleaning of artifacts DOI: 10.1515/pac-2016-0908 -
kumpiyansa 0.9
“Text: 'The bands to 820 and 880 are due to the stretching'”
Severo 等 - 2016 - Preparation of Zinc Tungstate (ZnWO4) Particles by DOI: 10.1590/1980-5373-MR-2015-0100
May spectrum ka ba na may ganitong band?
I-upload ang iyong FTIR spectrum at makakuha ng buong interpretasyon na ulat — mga pagtatalaga ng peak na may mga pagsipi ng literatura, pagtutugma ng library, at isang kadena ng ebidensya na may rating ng kumpiyansa — sa loob ng ilang segundo.
I-interpret ang aking spectrum