What absorbs at 613 cm⁻¹ in an FTIR spectrum?
A band near 613 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
Mabilis na sagot
A band near 613 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 | 2 | 1.0 |
| Alkyl C-H | 2 | 2 | 1.0 |
| Chlorine | 1 | 1 | 1.0 |
| S eq o | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Hydrogen bond | 1 | 1 | 1.0 |
| Silicon silicon | 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.
Mga posibleng materyales
| Materyal | Sumusuportang mga peak | Mga overlapping na grupo | Mga nasiping sanggunian |
|---|---|---|---|
| ZnO | 613, 1400, 3430 | Metal oxygen, Alkyl C-H | 1 |
| calcite | 613, 2850, 2864 | Alkyl C-H | 1 |
| ZnO nanoparticles | 613, 1219, 1726 | Alkyl C-H, Metal oxygen | 1 |
Ang mga materyales ay ipinapakita lamang kapag ang parehong literatura pool ay sumusuporta sa banda na ito at hindi bababa sa isang karagdagang katangian na tuktok.
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 613 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
-
Silicon (Si) kumpiyansa 1.0
“The x cm-1 typical IR absorption band located at 613 is associated to the Si-Si vibration [21].”
Lu 等 - 2013 - Red Light Emission from Silicon Created by Self-io DOI: 10.4028/www.scientific.net/AMM.320.109 -
kumpiyansa 1.0
“The band absorbed at 613 cm-1 and 580 is characteristic of the Zn-O bond, which confirms the formation of zinc cm-1 oxide [53,54].”
Abdelmigid 等 - 2022 - Green Synthesis of Zinc Oxide Nanoparticles Using DOI: 10.3390/molecules27041236 -
kumpiyansa 1.0
“Further addition of new peaks at 613 and 426 cm-1 strongly revealed the growth of inorganic particles (due to (a.u.) Fe-O vibrations) on the NSS surface.”
Facile Synthesis of Magnetic Nigella Sativa Seeds: Advances on Nano-Formulation Approaches for Delivering Antioxidants and Their Antifungal Activity against Candida albicans DOI: 10.3390/pharmaceutics15020642 -
Hydrogen bond kumpiyansa 1.0
“cm-1) was previously reported for the band at 613 (<1000 region It has been shown before for complexes with linear (cid:1) H-bonds that the red shift of the NH stretching mode, 1, The temperature dependence of the spectrum of pure and the b”
Rozenberg 等 - 2004 - Low temperature FTIR spectroscopy and hydrogen bon DOI: 10.1016/S1386-1425(03)00251-8 -
Hydroxyl (O-H) kumpiyansa 1.0
“813/772 and asymmetrical out of phase stretching out-of-plane 613/580/550/511 -OH bending and CH rocking 2 ν-stretchingvibrations;δ-deformationvibrations Note: Molecules 2023, 28, x FOR PEER REVIEW 6 of 19”
Rozylo 等 - 2023 - Micronized Powder of Raspberry Pomace as a Source DOI: 10.3390/molecules28124871 -
S eq o kumpiyansa 1.0
“sorption peaks due to the stretching vibration and out-of-plane bending vibration of C=O belong to the asymmetric stretching vibration of -SO and S=O, and the absorption peaks 33cm-1 -SO and 1043 belong to the asymmetric stretching vibratio”
Application of a Superplasticizer in Scheelite Selective Flotation from Calcite DOI: 10.3390/min12040483 -
Alkyl C-H kumpiyansa 1.0
“indica synthesized by supernatant of cm-1 boxylic group and the band at 613 is due to C-H 123”
Inhibition of a sulfate reducing bacterium, Desulfovibrio marinisediminis GSR3, by biosynthesized copper oxide nanoparticles DOI: 10.1007/s13205-016-0403-0 -
kumpiyansa 1.0
“cm-1 CH-rocking), 964 (assigned to trans CH wagging), and cm-1 C-Cl 613 (assigned to stretching), which were the polymer.45,46 shows the change in the optical absorption spectra of characteristics of the PVC After adding Ag and cm-1, ∼3439”
Zulfi 等 - 2023 - Electrospun Nanofibers from Waste Polyvinyl Chlori DOI: 10.1021/acsomega.3c01632
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