What absorbs at 666 cm⁻¹ in an FTIR spectrum?
Et bånd nær 666 cm⁻¹ kan peke på flere funksjonelle grupper. Nedenfor er de mest sannsynlige tildelingene, rangert etter hvor mye publiserte bevis som støtter hver — hver enkelt sporbar til litteratur (DOI) og kryssvalidert mot våre 130 000+ referansespektre og kunnskapsgraf.
Backed by 8 cited sources
Mulige funksjonelle gruppe-tilordninger
| Funksjonell gruppe | Støttende fakta | Siterte kilder | Toppkonfidens |
|---|---|---|---|
| Hydroxyl (O-H) | 4 | 3 | 1.0 |
| C-O single bond | 2 | 2 | 1.0 |
| Carboxyl (COOH) | 2 | 1 | 1.0 |
| Carbohydrate | 1 | 1 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| C c single bond | 1 | 1 | 1.0 |
| Metal oxygen | 1 | 1 | 0.9 |
Rangeringen gjenspeiler akkumulert litteraturbevis, ikke en enkelt autoritativ regel. Bekreft alltid mot prøvekonteksten din.
Litteratur bak disse tilordningene
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Hydroxyl (O-H) konfidens 1.0
“The peak at 666 cm-1is due to the vibration of Sn-OH terminal bonds.”
Koshy 等 - 2014 - Optical Properties of SnO2 Nanoparticles DOI: 10.1063/1.4898239 -
C c single bond konfidens 1.0
“cm-1 cm-1 cm-1 1412 (C-C str in aromatic rings), along with splitting of 672 peak into two peaks 706 & 666 cm-1 (benzene derivatives).”
Experimental evaluation of cobalt adsorption capacity of walnut shell by organic acid activation DOI: 10.1038/s41598-023-33902-9 -
Alkyl C-H konfidens 1.0
“AMPS revealed peaks at 2,987 representing the C-H stretching frequency of CH 2, while peaks around 1,666 cm-1 C=O and 1,613 were due to stretchingand N-H bending, 2 respectively.”
Malik 等 - 2020 - ChitosanXanthan Gum Based Hydrogels as Potential DOI: 10.3389/fchem.2020.00050 -
Acetate konfidens 1.0
“The characteristic vibrational bands of MPN at 666 610 are due to C-O-H bending in the carboxylic group (Cielecka-Piontek et al., 2013).”
Muneer 等 - 2020 - Development and characterization of meropenem dry DOI: 10.1016/j.ijpharm.2020.119684 -
Silicon (Si) konfidens 1.0
“The band at 666 is assigned to the stretching vibration of Si-O-Si of tetrahedral [SiO 4] units [17].”
Structure and ionic conductivity of nitrated lithium disilicate (LiSiON) glasses DOI: 10.1016/j.matchemphys.2018.02.045 -
C-O single bond konfidens 1.0
“894 COC, CCO, and CCH deformation and stretching Cellulose 666 C-OH out-of-plane bending Cellulose”
Effect of Alkaline Treatment and Graphene Oxide Coating on Thermal and Chemical Properties of Hemp ( DOI: 10.1080/15440478.2022.2053265 -
Metal oxygen konfidens 0.9
“Same band as above.”
Urea combustion synthesis of nano-structure bimetallic perovskite FeMnO3 and mixed monometallic iron manganese oxides: effects of preparation parameters on structural, opto-electronic and photocatalytic activity for photo-degradation of Basic Blue 12 DOI: 10.1007/s10854-017-6568-4 -
konfidens 0.8
“Text: 'and 666' in same context.”
Hu 等 - 2022 - Flotation Performance and Adsorption Mechanism of DOI: 10.3390/min12040441
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