What absorbs at 573 cm⁻¹ in an FTIR spectrum?
A band near 573 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
Ātra atbilde
A band near 573 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.
Iespējamie funkcionālo grupu piešķīrumi
| Funkcionālā grupa | Atbalstošie fakti | Citētie avoti | Augstākā pārliecība |
|---|---|---|---|
| Metal oxygen | 4 | 4 | 1,0 |
| Aromatic ring | 2 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| C n single bond | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| Methacrylate | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Acetate | 1 | 1 | 1,0 |
| Hydrogen bond | 1 | 1 | 0,9 |
Rangs atspoguļo uzkrātos literatūras pierādījumus, nevis vienu autoritatīvu noteikumu. Vienmēr apstipriniet atbilstoši parauga kontekstam.
Iespējamie materiāli
| Materiāls | Atbalstošie pīķi | Pārklājošās grupas | Citētie avoti |
|---|---|---|---|
| zinc oxide | 573, 1627, 1638 | Metal oxygen | 1 |
| ZnO | 573, 1400, 3430 | Metal oxygen | 1 |
Materiāli tiek parādīti tikai tad, ja šo joslu un vismaz vienu papildu raksturīgo pīķi atbalsta tā pati literatūras kopa.
Spektra loģika
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 573 cm⁻¹ is usually not enough for material identification by itself.
Reālās pasaules izmantošana
Šāda veida vaicājums ir izplatīts polimēru identificēšanā, nezināmas plastmasas skrīningā, kvalitātes kontroles problēmu risināšanā, pārstrādāto materiālu pārbaudē un ar literatūru pamatotā pīķu piešķīruma pārskatā.
Biežākās kļūdas
- Vienas izolētas joslas uzskatīšana par materiāla pierādījumu, nepārbaudot vismaz vienu vai divus atbalsta pīķus.
- Ignorējot pārklāšanos: vairākas funkcionālās grupas var dot ieguldījumu tuvu tam pašam viļņa skaitlim.
- Izlaist validāciju, ja piedevas, maisījumi, oksidācija vai piesārņojums var izkropļot spektru.
Verifikācijas padoms
Ja joprojām pastāv neskaidrība, apstipriniet hipotēzi ar DSC, GC-MS vai TGA, īpaši maisījumiem, noārdītiem paraugiem un pildītiem polimēriem.
Literatūra aiz šiem piešķīrumiem
-
Acetate pārliecība 1,0
“1560cm(cid:1)1 can be ascribed to the The bands at 1405 and C-O symmetric and asymmetric stretching vibrations in the s<573K films T [37].”
Dobrozhan 等 - 2015 - Substructural investigations, Raman, and FTIR spec DOI: 10.1002/pssa.201532324 -
Aromatic ring pārliecība 1,0
“The primary luminescence peaks are at 22 573 cm-1, and 20 408 respectively, with additional resolved structure from both phenyl ring and ethynyl vibrations.”
Emmert 等 - 2003 - The excited-state symmetry characteristics of plat DOI: 10.1021/jp036309x -
Metal oxygen pārliecība 1,0
“LLM confirmed rule peak-group candidate”
Fei 等 - 2014 - Effect of Temperature on Structural and Optical Pr DOI: 10.4028/www.scientific.net/KEM.591.293 -
pārliecība 1,0
“2(a)) absorption bands at 573, 1020, attributed for stretching vibration of tetrahedral group, lepidocrocite formation and nitrogen from unconsumed reagent form”
Synthesis of nanocrystalline nickel⠍zinc ferrite (Ni0.8Zn0.2Fe2O4) thin films by chemical bath deposition method DOI: 10.1016/j.jallcom.2010.12.079 -
Metal oxygen pārliecība 1,0
“cm-1 cm-1 and 865 confirm that the structural compositional is peaks observed near 573 Nb O symmetric stretching behavior.”
Reddy 等 - 2013 - Electrical and Pyroelectric Measurements on Charge DOI: 10.1080/00150193.2013.821927 -
Metal oxygen pārliecība 1,0
“The band at 953 is assigned to the W O stretching vibration in the octahedral cm-1 cm-1 tungsten peroxide species in UiO-67-WO(O 2) 2, and the bands centered at 573 and 531 are cm-1 attribute to the asymmetric and symmetric stretching vibra”
Transition Metal Oxodiperoxo Complex Modified Metal-Organic Frameworks as Catalysts for the Selective Oxidation of Cyclohexane DOI: 10.3390/ma13040829 -
Metal oxygen pārliecība 1,0
“It is obvious that the characteristic band of Fe-O at 572.95 cm 1 absorbance was measured at 570 nm in a microplate reader (Synergy).”
Synthesis and characterization of magnetite nanoparticles by co-precipitation method coated with biocompatible compounds and evaluation of in-vitro cytotoxicity DOI: 10.1016/j.toxrep.2021.01.012 -
Amide pārliecība 1,0
“8 of 17 cm-1 at 932 and 679 were associated with the stretching and bending vibrations of the C-C connections, the C-C connections, and the group at 573 cm-1 may be attributed to the O=C-N flexion [42].”
Physicochemical Studies on the Surface of Polyamide 6.6 Fabrics Functionalized by DBD Plasmas Operated at Atmospheric and Sub-Atmospheric Pressures DOI: 10.3390/polym12092128
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