What absorbs at 587 cm⁻¹ in an FTIR spectrum?
A band near 587 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 6 cited sources
Mabilis na sagot
A band near 587 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.
Mga posibleng pagtatalaga ng functional-group
| Grupong functional | Mga sumusuportang katotohanan | Mga nasiping sanggunian | Pinakamataas na kumpiyansa |
|---|---|---|---|
| Metal oxygen | 3 | 3 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| C n single bond | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
| Hydrogen bond | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Silicon nitrogen | 1 | 1 | 1.0 |
| Silicon carbon | 1 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
Ang pagraranggo ay sumasalamin sa naipon na ebidensya ng literatura, hindi isang solong awtoritatibong tuntunin. Palaging kumpirmahin laban sa konteksto ng iyong sample.
Logic ng spectrum
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 587 cm⁻¹ is usually not enough for material identification by itself.
Paggamit sa totoong mundo
Ang uri ng query na ito ay karaniwan sa pagtukoy ng polymer, screening ng hindi kilalang plastic, pag-troubleshoot ng QC, pag-verify ng recycled na materyal, at pagsusuri ng pagtatalaga ng peak na may suporta ng literatura.
Mga karaniwang pagkakamali
- Pagtrato sa isang nakahiwalay na banda bilang patunay ng isang materyal nang hindi sinusuri ang hindi bababa sa isa o dalawang sumusuportang peak.
- Hindi pinapansin ang overlap: maraming functional group ang maaaring mag-ambag malapit sa parehong wavenumber.
- Pag-laktaw sa pagpapatunay kapag ang mga additives, blends, oxidation, o contamination ay maaaring mag-distort ng spectrum.
Payo sa pagpapatunay
Kapag nananatili ang kalabuan, patunayan ang hypothesis gamit ang DSC, GC-MS, o TGA, lalo na para sa mga blend, degraded na sample, at filled polymers.
Literatura sa likod ng mga pagtatalagang ito
-
Metal oxygen kumpiyansa 1.0
“Explicit assignment: 'characteristic peak at 587 typical for Fe-O bond'”
Green synthesis of magnetite nanoparticles using Lathyrus sativus peel extract and evaluation of their catalytic activity DOI: 10.1016/j.clet.2021.100117 -
Silicon (Si) kumpiyansa 1.0
“Peaks centred at 587, 672 and cm-1 cm-1 809 correspond to the Si-C bonds.”
Optical and photoelectrochemical properties of nitrogen-doped a-SiC thin films deposited by reactive DOI: 10.1080/2374068X.2021.1890420 -
kumpiyansa 1.0
“While cm-1 the peaks in the region of 3170-3382 are corresponding to N-H, -NH 2, and O-H bonds, respectively cm-1 and the FTIR peak at 587 support the bond Co-Se.”
Ahamad - 2022 - CoSe2@N-Doped Graphene Nanocomposite High-Efficien DOI: 10.21203/rs.3.rs-1197256/v1 -
kumpiyansa 1.0
“doi:10.1371/journal.pone.0153544.g003 587cm-1 shows the stretching vibrations due to tetrahedral Fe-O.”
Influence of Reduced Graphene Oxide on Effective Absorption Bandwidth Shift of Hybrid Absorbers DOI: 10.1371/journal.pone.0153544 -
Metal oxygen kumpiyansa 1.0
“The band cm-1 ∼587 ascribable to bulk (Fe-O) vibrations shifts from (see the solid line trace of the calcined Th cm-1, ∼578 due to the changed (increased) particles size sample in section (a) of Fig.”
Crocella 等 - 2012 - On the Role of Morphology of CoFeO4 Spinel in Meth DOI: 10.1021/jp304355d -
C c single bond kumpiyansa 1.0
“FTIR of K 3[Fe(CN) 6] as shown in Figure 2(a) exhibit cm-1 (1100,1000, 757 ) due to skeletal stretching cm-1, cm-1 peaks at (3464 1630 ), (2118, 2076, 2043) cm-1 vibration of C-C, C-N, 587 due to N-C-C-N and cm-1 cm-1 and 511 which are attr”
Moosvi 等 - 2016 - Studying the electrical, thermal, and photocatalyt DOI: 10.1590/1980-5373-MR-2015-0786
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