What absorbs at 3182 cm⁻¹ in an FTIR spectrum?
A band near 3182 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 4 cited sources
Možná přiřazení funkčních skupin
| Funkční skupina | Podpůrná fakta | Citované zdroje | Nejvyšší spolehlivost |
|---|---|---|---|
| N h | 4 | 2 | 1,0 |
| Secondary amine | 2 | 2 | 1,0 |
| Alkyl C-H | 2 | 1 | 1,0 |
| Metal oxygen | 1 | 1 | 1,0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| Silicon (Si) | 1 | 1 | 1,0 |
| C=n | 1 | 1 | 1,0 |
Pořadí odráží nahromaděné literární důkazy, nikoli jediné autoritativní pravidlo. Vždy potvrďte v kontextu vašeho vzorku.
Literatura za těmito přiřazeními
-
Alkyl C-H spolehlivost 1,0
“cm-1, cm-1, ing of amide at 3182 C-H stretching at 2931”
Owonubi 等 - 2018 - Characterization and in vitro release kinetics of DOI: 10.1007/s40090-018-0139-2 -
N h spolehlivost 1,0
“A broad band at 3182 in the IR spectra of samples in pure and 3+ doped TGS crystals appears due to symmetric stretching vibrations in the NH group.”
Croconic Acid Doped Triglycine Sulfate: Crystal Structure, UV-Vis, FTIR, Raman, Photoluminescence Spectroscopy, and Dielectric Properties DOI: 10.3390/cryst12050679 -
C=n spolehlivost 1,0
“-4.18 SMX 3.47 cm-1), CN stretching in sulfonamide (3182 imine stretching -9.67 -4.58 MAA 5.09”
Ektirici 等 - 2022 - Computational Investigation of the Monomer Ratio a DOI: 10.1021/acsomega.2c00862 -
Silicon (Si) spolehlivost 1,0
“showed that the asymmetric Si-O-M (M Si, Al, Na, H) almost changed at 1387 The appeared to have formed in the bands at 1664 and 3182 cm-1.”
Sodium Silicate from Rice Husk Ash and Their Effects as Geopolymer Cement DOI: 10.3390/polym14142920
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