Hvad absorberer ved 1010 cm⁻¹ i et FTIR-spektrum?
Et bånd nær 1010 cm⁻¹ kan pege på flere funktionelle grupper. Nedenfor er de mest sandsynlige tildelinger, rangeret efter hvor meget publiceret bevis der understøtter hver — hver enkelt spores til litteratur (DOI) og krydsvalideres mod vores 130.000+ referencespektre og vidensgraf.
Backed by 8 cited sources
Hurtigt svar
Et bånd nær 1010 cm⁻¹ fortolkes normalt ved at kontrollere, hvilke funktionelle grupper der gentagne gange forekommer der i litteraturen, og derefter bekræfte mindst en eller to yderligere peaks i den samme prøve. Denne side rangerer disse tildelinger efter akkumuleret evidens snarere end efter en enkelt fast lærebogsregel.
Mulige funktionelle gruppetildelinger
| Funktionel gruppe | Understøttende fakta | Citerede kilder | Højeste tillid |
|---|---|---|---|
| Methacrylate | 13 | 12 | 1,0 |
| Acetate | 13 | 12 | 1,0 |
| Methoxy (OCH3) | 12 | 11 | 1,0 |
| C-O single bond | 12 | 11 | 1,0 |
| Silicon-oxygen (Si-O) | 9 | 7 | 1,0 |
| Siloxane (Si-O-Si) | 5 | 4 | 1,0 |
| Carbonyl (C=O) | 4 | 4 | 1,0 |
| Amide | 4 | 4 | 1,0 |
| Hydroxyl (O-H) | 4 | 4 | 1,0 |
| Alkyl C-H | 4 | 3 | 1,0 |
| Silicon (Si) | 4 | 2 | 1,0 |
| Carbohydrate | 3 | 3 | 1,0 |
| Phosphate (PO4) | 3 | 3 | 1,0 |
| Ring structure | 3 | 3 | 1,0 |
| Silanol (Si-OH) | 2 | 2 | 1,0 |
| Ester | 2 | 2 | 1,0 |
| C c single bond | 2 | 2 | 1,0 |
| Phosphorus | 2 | 2 | 1,0 |
| Nucleic acid | 2 | 2 | 1,0 |
| Metal oxygen | 2 | 2 | 1,0 |
| Methyl | 2 | 1 | 1,0 |
| Carbon dioxide | 1 | 1 | 1,0 |
| Protein | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| S eq o | 1 | 1 | 1,0 |
| Oxygen heterocycle | 1 | 1 | 1,0 |
| Ketone | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Sulfur | 1 | 1 | 1,0 |
| Imide | 1 | 1 | 0,6 |
| Metal oxo | 1 | 0 | 1,0 |
Rangering afspejler akkumuleret litteraturevidence, ikke en enkelt fast regel. Bekræft altid mod din prøvekontekst.
Mulige materialer
| Materiale | Understøttende toppe | Overlappende grupper | Citerede kilder |
|---|---|---|---|
| nanotubes | 1010, 1735, 1630 | Methacrylate, Acetate, Methoxy (OCH3) | 1 |
Materialer vises kun, når den samme litteraturpulje understøtter dette bånd og mindst en yderligere karakteristisk top.
Spektrumlogik
Dette bånd bliver meningsfuldt kun, når det læses sammen med sine nabotoppe. I praksis ser analytikere først på tildelingerne ovenfor, og kontrollerer derefter, om den samme prøve også viser andre toppe, der forventes for det samme strukturelle motiv. Et enkelt bånd nær 1010 cm⁻¹ er normalt ikke nok til materialeidentifikation alene.
Anvendelse i virkeligheden
Denne type forespørgsel er almindelig ved polymeridentifikation, screening af ukendt plast, fejlfinding i kvalitetskontrol, verifikation af genanvendt materiale og litteraturunderstøttet gennemgang af peak-tildeling.
Almindelige fejl
- Behandling af et isoleret bånd som bevis på et materiale uden at kontrollere mindst en eller to understøttende toppe.
- Ignorerer overlap: flere funktionelle grupper kan bidrage nær samme bølgetal.
- Spring validering over, når additiver, blandinger, oxidation eller forurening kan forvrænge spektret.
Verifikationsrådgivning
Når tvetydighed fortsat består, valider hypotesen med DSC, GC-MS eller TGA, især for blandinger, nedbrudte prøver og fyldte polymerer.
Litteratur bag disse tildelinger
-
Metal oxygen tillid 1,0
“The main absorption FTIR bands of H 3PW 12O are situated at 800, 893, 984 d 40 1010 cm-1 W-O c-W and 1080 and are associated with the stretching mode W-O e-W (where corner oxygen atoms are abbreviated as O c), the”
Single-walled carbon nanotubes functionalized with polydiphenylamine as active materials for applications in the supercapacitors field DOI: 10.1016/j.diamond.2012.12.006 -
Acetate tillid 1,0
“cm-1 indicated by the band at 1147 The peak at 1010 denotes the solitary C-O bond as well as the CH bending”
Magnetite-impregnated biochar of parthenium hysterophorus for adsorption of Cr(VI) from tannery industrial wastewater DOI: 10.1007/s13201-023-01880-y -
Alkyl C-H tillid 1,0
“The major identification as a fluorenone-type structure especially after considering C-H bands of this region are the in-plane deformation band at 1010”
Detecting, characterising and assessing PEEK’s and CF-PEEK’s thermal degradation in rapid high-temperature processing DOI: 10.1016/j.polymdegradstab.2022.110096 -
Phosphate (PO4) tillid 1,0
“The absorbance and positions of the main peaks, the 2nd derivative components of the phosphate and carbonate bands, as well as the cm-1 full width at half maximum (FWHM) of the 1010 phosphate peak are particle size dependent.”
Kontopoulos 等 - 2018 - Preparation of bone powder for FTIR-ATR analysis DOI: 10.1016/j.vibspec.2018.09.004 -
tillid 1,0
“cm-1 ∼3000-3675 mode.42 as well as absorbance gains at 880, 920, and 930 The The absorbance features at are cm-1 absorbance losses at 975 and 1010 consistent with the stretching vibrations of isolated and are assigned to the Al-(HF)* Si-OH”
Lee 等 - 2015 - Atomic Layer Deposition of AlF3 Using Trimethylalu DOI: 10.1021/acs.jpcc.5b02625 -
Sulfur tillid 1,0
“The peak at 1010 cm is comsigned to carbon-sulfur stretching bond and carbon-carbon twist.”
A case study of poly (aryl ether sulfone) hemodialysis membrane interactions with human blood: Molecular dynamics simulation and experimental analyses DOI: 10.1016/j.cmpb.2020.105742 -
Carboxyl (COOH) tillid 1,0
“1638.25cm-1 <1700cm-1 -COOH(C=OStretching) (Medium) cm-1 cm-1 <1700 (Medium) -COOH (C=O Stretching) 1638.25 1010.16cm-1 and922.53cm-1 ±1050cm-1 -COOH(C-OStretching)”
Validation of the Developed Zero-Order Infrared Spectrophotometry Method for Qualitative and Quantitative Analyses of Tranexamic Acid in Marketed Tablets DOI: 10.3390/molecules26226985 -
Hydroxyl (O-H) tillid 1,0
“PolymerDegradationandStability211(2023)110311 • phenolic peak related to Irganox 1010 was superimposed and shadowed According to the number of functional phenolic groups in the noncm-1.”
Temperature dependent degradation of phenolic stabilizers and ageing behaviour of PP-R micro-specimen DOI: 10.1016/j.polymdegradstab.2023.110311
Har du et spektrum med dette bånd?
Upload dit FTIR-spektrum og få en fuld fortolkningsrapport — peak-tildelinger med litteraturhenvisninger, biblioteksmatch og en litteraturunderstøttet analyse — på få sekunder.