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
Snabbt svar
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.
Möjliga identifieringar av funktionella grupper
| Funktionell grupp | Stödjande fakta | Citerade källor | Högsta förtroende |
|---|---|---|---|
| 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 |
Rankingen speglar ackumulerade litteraturbevis, inte en enda auktoritativ regel. Bekräfta alltid mot din provkontext.
Spektrumlogik
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.
Användning i verkligheten
Denna typ av fråga är vanlig inom polymeridentifiering, screening av okänd plast, felsökning av kvalitetskontroll, verifiering av återvunnet material och litteraturstödd toppidentifieringsgranskning.
Vanliga misstag
- Behandla ett isolerat band som bevis på ett material utan att kontrollera minst en eller två stödjande toppar.
- Ignorerar överlapp: flera funktionella grupper kan bidra nära samma vågtal.
- Hoppa över validering när tillsatser, blandningar, oxidation eller föroreningar kan förvränga spektrat.
Verifieringsråd
När oklarhet kvarstår, validera hypotesen med DSC, GC-MS eller TGA, särskilt för blandningar, nedbrutna prover och fyllda polymerer.
Litteratur bakom dessa identifieringar
-
Metal oxygen förtroende 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) förtroende 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 -
förtroende 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 -
förtroende 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 förtroende 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 förtroende 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
Har du ett spektrum med detta band?
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