What absorbs at 828 cm⁻¹ in an FTIR spectrum?
A band near 828 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
Iespējamie funkcionālo grupu piešķīrumi
| Funkcionālā grupa | Atbalstošie fakti | Citētie avoti | Augstākā pārliecība |
|---|---|---|---|
| Alkyl C-H | 2 | 2 | 1,0 |
| Imide | 1 | 1 | 1,0 |
| Borate | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
Rangs atspoguļo uzkrātos literatūras pierādījumus, nevis vienu autoritatīvu noteikumu. Vienmēr apstipriniet atbilstoši parauga kontekstam.
Literatūra aiz šiem piešķīrumiem
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Water (H2O) pārliecība 1,0
“absorption losses at 1646 and below There The presence of adsorbed water must therefore play an are also three distinct absorption gain peaks at 828, 745, and important role in the activity of the modes giving rise to the cm-1 685 superimpo”
Influence of Adsorbed Water on Phonon and UV-Induced IR Absorptions of TiO<sub>2</sub> Photocatalytic Particle Films DOI: 10.1021/jp0471812 -
C c single bond pārliecība 1,0
“The detected peaks at 828 cm-1 steady value for the remaining part of the investigated waveand 888 are assigned to C-C chain in the polymer length.”
Improvement of Optical Properties of Functionalized Polyvinyl Alcohol-Zinc Oxide Hybrid Nanocomposites for Wide UV Optoelectronic Applications DOI: 10.1007/s10904-023-02616-w -
Borate pārliecība 1,0
“The band cm-1 at 828 quently the removal efficiency of the six cleaning sysis assigned to the B-O stretching vibration”
Evaluation of polyvinyl alcohol–borax/agarose (PVA–B/AG) blend hydrogels for removal of deteriorated consolidants from ancient Egyptian wall paintings DOI: 10.1186/s40494-019-0264-z -
Alkyl C-H pārliecība 1,0
“3 respectively attributed to the asymmetric stretching of C-O-C and the deformation of C=CH [43,44], 2 cm-1 while the peak at 828 might be assigned to CH rocking [43].”
Hosseini 等 - 2017 - Polymethacrylate Coated Electrospun PHB Fibers as DOI: 10.3390/s17102292 -
Imide pārliecība 1,0
“cm-1 At lower wavenumbers, the sharp band between 828 and 800 is assigned to the out-of-plane bending of the H-C= vibration present in maleimide (MI) units and 1-4 subcm-1 stituted aromatic rings.”
Influence of the Epoxy Resin Process Parameters on the Mechanical Properties of Produced Bidirectional [45] Carbon/Epoxy Woven Composites DOI: 10.3390/polym -
Alkyl C-H pārliecība 1,0
“The bands at 1418 cm-1 and 828 cm-1 are related to the scissor vibration of δCH2 and stretching of the zigzag-shaped carbon base of νC-C, respectively.”
Composite Cement Materials Based on -Tricalcium Phosphate, Calcium Sulfate, and a Mixture of Polyvinyl Alcohol and Polyvinylpyrrolidone Intended for Osteanagenesis DOI: 10.3390/polym15010210
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