What absorbs at 1450 cm⁻¹ in an FTIR spectrum?
A band near 1450 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
Возможные назначения функциональных групп
| Функциональная группа | Подтверждающие факты | Цитируемые источники | Максимальная достоверность |
|---|---|---|---|
| Alkyl C-H | 18 | 18 | 1,0 |
| Carbonate | 5 | 5 | 0,9 |
| Amide | 4 | 4 | 1,0 |
| Aromatic ring | 3 | 3 | 0,9 |
| Lipid | 2 | 2 | 1,0 |
| Borate | 1 | 1 | 0,95 |
| C n single bond | 1 | 1 | 0,9 |
| N h | 1 | 1 | 0,9 |
| Carboxyl (COOH) | 1 | 1 | 0,9 |
| Ammonium | 1 | 1 | 0,9 |
| Methyl | 1 | 1 | 0,9 |
| C-O single bond | 1 | 1 | 0,9 |
| Alkene (C=C) | 1 | 1 | 0,9 |
| Hydroxyl (O-H) | 1 | 1 | 0,8 |
| Phospholipid | 1 | 1 | 0,8 |
| Water (H2O) | 1 | 0 | 0,7 |
Ранжирование отражает накопленные литературные данные, а не единственное авторитетное правило. Всегда проверяйте в контексте вашего образца.
Литература, лежащая в основе этих назначений
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Alkyl C-H достоверность 1,0
“Explicit assignment: 'near 1450 were formed due to the long chain of C-H (bending vibration)'”
Dey 等 - 2020 - Biodegradation of Unpretreated Low-Density Polyeth DOI: 10.3389/fmicb.2020.603210 -
Amide достоверность 1,0
“Text: 'amide-II' band (δND) at 1450 ... overlaps with D2O scissoring'.”
Liu 等 - 2021 - Fourier transform infrared spectroscopy coupled wi DOI: 10.1038/s41598-021-91802-2 -
достоверность 1,0
“Characteristic vibration band associated with carbon-carbon double bond.”
Salinas 和 Frontana-Uribe - 2023 - Electrochemical and Spectroscopic (FTIR) Evidence DOI: 10.3390/molecules28020569 -
достоверность 1,0
“ν3CO band at 1450”
Stamataki 等 - 2021 - Is it hot enough A multi-proxy approach shows var DOI: 10.1016/j.jas.2021.105509 -
Lipid достоверность 1,0
“Explicit assignment: '1450 band, which is mainly related to the lipid concentration'”
Tombolesi 等 - 2022 - Early cardiac-chamber-specific fingerprints in hea DOI: 10.1038/s41598-022-07390-2 -
достоверность 0,95
“Explicit assignment: 'IR-peak 1450 (H1a-center) associated with nitrogen interstitials'”
Babich 等 - 2016 - Manifestation of nitrogen interstitials in synthet DOI: 10.1134/S0016702916100025 -
Borate достоверность 0,95
“Text: 'strong absorption peak at 1450 which contributed to B-O bonds'”
Zhang 等 - 2015 - Stoichiometric controlling of boroncarbonitride th DOI: 10.1063/1.4918684 -
достоверность 0,9
“Explicit assignment in text”
Babich 等 - 2016 - Distribution of H1a-centers in as-grown diamonds o DOI: 10.1016/j.diamond.2016.07.001
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