What absorbs at 1400 cm⁻¹ in an FTIR spectrum?
A band near 1400 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
Mulige funksjonelle gruppe-tilordninger
| Funksjonell gruppe | Støttende fakta | Siterte kilder | Toppkonfidens |
|---|---|---|---|
| Alkyl C-H | 12 | 11 | 1.0 |
| Carboxyl (COOH) | 11 | 10 | 1.0 |
| Carbonate | 10 | 9 | 0.9 |
| Aromatic ring | 6 | 6 | 0.9 |
| Amide | 4 | 4 | 0.9 |
| C-O single bond | 3 | 3 | 1.0 |
| Hydroxyl (O-H) | 3 | 2 | 0.9 |
| C n single bond | 2 | 2 | 1.0 |
| Boron nitrogen | 2 | 2 | 0.9 |
| Fluorine (C-F) | 1 | 1 | 1.0 |
| Silicon carbon | 1 | 1 | 0.9 |
| C c single bond | 1 | 1 | 0.8 |
| Phospholipid | 1 | 1 | 0.8 |
| Protein | 1 | 1 | 0.7 |
| N eq o | 1 | 1 | 0.7 |
Rangeringen gjenspeiler akkumulert litteraturbevis, ikke en enkelt autoritativ regel. Bekreft alltid mot prøvekonteksten din.
Litteratur bak disse tilordningene
-
Alkyl C-H konfidens 1.0
“Explicitly stated: 'PVDF has characteristic band at 1400 cm-1 ... belongs to the CH wagging'.”
Ramadan 和 Ismail - 2022 - Tunning the Physical Properties of PVDFPVCZinc F DOI: 10.21203/rs.3.rs-935328/v1 -
Carboxyl (COOH) konfidens 1.0
“Attributed to symmetric vibration of carboxyl group.”
Abdi 等 - 2022 - Improvement of anti-corrosion performance of an ep DOI: 10.1038/s41598-022-14854-y -
Fluorine (C-F) konfidens 1.0
“Explicit assignment in text.”
Inamuddin 和 Kashmery - 2019 - Polyvinylidene fluoridesulfonated graphene oxide DOI: 10.1038/s41598-019-46305-6 -
C-O single bond konfidens 1.0
“C-OH vibration”
Wei 等 - 2019 - Graphene Oxide Adsorption Enhanced by Attapulgite DOI: 10.3390/app9071390 -
C n single bond konfidens 1.0
“Explicit assignment: 'peaks at 1400, 1242, 1071, and 1078 were assigned to the C-N stretching vibration, the N-H bending'”
Zhang 等 - 2018 - Selective Adsorption of Ag(I) from Electronic Wast DOI: 10.7569/JRM.2017.634154 -
Carboxyl (COOH) konfidens 1.0
“Band shifted from 1420 to 1400 cm-1 derived from symmetrical stretching of carboxylate.”
Zhang 等 - 2023 - Structural and Physical Properties of Alginate Pre DOI: 10.3390/polym15153225 -
Carboxyl (COOH) konfidens 0.95
“Same assignment as above.”
Talarico 等 - 2021 - Solid Lipid Nanoparticles Produced via a Coacervat DOI: 10.3390/molecules26092694 -
Boron nitrogen konfidens 0.9
“In-plane h-BN peak.”
Bejarano 等 - 2006 - Deposition of B4CBCNc-BN multilayered thin films DOI: 10.1016/j.tsf.2005.08.192
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