What absorbs at 433 cm⁻¹ in an FTIR spectrum?
A band near 433 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
Possíveis atribuições de grupos funcionais
| Grupo funcional | Fatos de suporte | Fontes citadas | Maior confiança |
|---|---|---|---|
| Metal oxygen | 3 | 3 | 1,0 |
| Phosphate (PO4) | 2 | 2 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
A classificação reflete a evidência acumulada da literatura, não uma única regra autoritária. Sempre confirme com o contexto da sua amostra.
Literatura por trás destas atribuições
-
Phosphate (PO4) confiança 1,0
“592cm(cid:1)1 showed the same peaks at 433 and due to internal O492 1.7m2/g) perature was greater at 0% (from 5.7 to and 5% SAID 430 963cm(cid:1)1 43(cid:1) PAO P-O vibration, at due to of the PO and at 1040 493 1.6m2/g) 1.4m2/g) (from 4.7”
Structure reinforcement of porous hydroxyapatite pellets using sodium carbonate as sintering aid: Microstructure, secondary phases and mechanical properties DOI: 10.1016/j.apt.2019.05.013 -
Metal oxygen confiança 1,0
“4]2(cid:2) 711-933cm(cid:2)1, tetrahedrons was detected at and The strong W-O stretching in [WO 433cm(cid:2)1.”
Phuruangrat 等 - 2010 - Synthesis, characterisation and photoluminescence DOI: 10.1080/17458080903513276 -
confiança 1,0
“From Fourier Transform Infrared cm-1 Spectroscopy (FTIR), the band at 433 is attributed to Zn-O bond Key words: Nanoparticles, Optical properties, XRD”
Pandiyarajan 和 Karthikeyan - 2011 - Optical, phonon and structural analysis of Na dope DOI: 10.1117/12.890082 -
Metal oxygen confiança 1,0
“From the FTIR spectrum, a strong peak of 862 has been obtained due to the 42cm-1 stretching vibration of WO in scheelite structure, and a weak but sharp band at 433 has been noticed due to the metal-oxygen (Ca-O) band.”
Abozaid 等 - 2018 - Characterization of Neodymium Doped Calcium Tungst DOI: 10.2298/SOS1804445A -
Phosphate (PO4) confiança 1,0
“The peaks at 433 cm-1 and 447 cm-1 were assigned to PO43υ2 vibration (bending mode), and the peaks at 1030 cm-1, 1047 cm-1 and 1079 cm-1 (arb.”
Gavinho 等 - 2023 - An Eco-Friendly Process to Extract Hydroxyapatite DOI: 10.3390/jfb14050279 -
Hydroxyl (O-H) confiança 1,0
“The first 3,630 The stretching and bending vibrations of the one (up to 433 K) is attributed to the dehydration of the hydroxyl groups of water molecules present in the clay can cm-1,”
Natkanski 等 - 2013 - Effect of Fe3+ ions present in the structure of po DOI: 10.1007/s10973-013-3225-x -
confiança 0,9
“Text: '433 are attributed to ... N bending vibrations'”
Francis 等 - 2016 - Optical nonlinearity in multiferroic bismuth ferri DOI: 10.1016/j.jallcom.2016.07.094 -
confiança 0,7
“Lewis Al2Cl peaks assigned”
Understanding the molecular structure of the elastic and thermoreversible AlCl3:urea/polyethylene oxide gel electrolyte DOI: 10.1002/cssc.202001557
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