What absorbs at 3319 cm⁻¹ in an FTIR spectrum?
A band near 3319 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
تعيينات المجموعات الوظيفية المحتملة
| مجموعة وظيفية | حقائق داعمة | المصادر المستشهد بها | أعلى ثقة |
|---|---|---|---|
| Hydroxyl (O-H) | 6 | 5 | 1,0 |
| N h | 4 | 4 | 1,0 |
| Water (H2O) | 2 | 2 | 1,0 |
| Lignin | 1 | 1 | 1,0 |
| Secondary amine | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
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الأدبيات وراء هذه التعيينات
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Hydroxyl (O-H) الثقة 1,0
“[41-42] IR analysis of the whole plant extract of Gotu kola revealed that the presence of different functional groups ranging from O-H stretching, hydroxyl (3319.26 cm-1), C-H stretching, carbonyl (2921.96 cm-1), C=C”
Kumar 等 - 2021 - Centella asiatica mediated facile green synthesis DOI: 10.1016/j.inoche.2021.108865 -
Hydroxyl (O-H) الثقة 1,0
“were observed in the spectral ranges of 2614-4000 and 1465-1853 The FTIR spectra of fresh and cm-1, spoiled beetroot test samples showed wide and strong bands at 3319 and 1637 which corresponded to asymmetric and symmetric stretching vibrat”
Analysis of Moisture Content in Beetroot using Fourier Transform Infrared Spectroscopy and by Principal Component Analysis DOI: 10.1038/s41598-018-26243-5 -
N h الثقة 1,0
“The remaining band at 1599 cm-1 sites.20,33 acid The final peak at 3319 results from attributed to the asymmetric deformation of NH ((cid:228) as(NH 3)) 3 sites.20 as(NH 3) coordinated to Lewis acid (cid:238)”
Pena 等 - 2004 - Identification of surface species on titania-suppo DOI: 10.1021/jp0313122 -
Water (H2O) الثقة 1,0
“Pure distilled water showed a strong IR absorbance band at 3319.48 cm-1 stretching) and around 1636.63 (H-O-H bending).”
Chemometric analysis of cow dung ash as an adsorbent for purifying biodiesel from waste cooking oil DOI: 10.1038/s41598-017-09881-z -
الثقة 1,0
“The medium peak at cm-1 3319 represents N-H stretching vibration that showed Significance of each individual process variables and overall the presence of amine group on the surface of biosorbent.”
Biosorption of copper(II) onto spent biomass of Gelidiella acerosa (brown marine algae): optimization and kinetic studies DOI: 10.1007/s13201-019-1125-3 -
Hydroxyl (O-H) الثقة 1,0
“The band at cm-1 3319 is attributed to the OH groups in lignin.”
Chemical functional groups of extractives, cellulose and lignin extracted from native Leucaena leucocephala bark DOI: 10.1007/s00226-020-01258-2 -
الثقة 1,0
“1c shows the IR A spectrum of 15DAN monomer, which displayed the characteristic peaks at 3416 and u t h 3319cm-1 and are ascribed to N-H stretching of the primary amino groups [32], these dual o”
Olanipekun 等 - 2015 - Synthesis and characterization of reduced graphite DOI: 10.1016/j.saa. -
الثقة 1,0
“trum of the Por-BZ monomer, with the main characteristic signals being those for the heat of 163 J Compared with the typical thermal curing temperature of a Pa-type BZ oxazine ring (948 cm-1), C-O stretching (1222 cm-1), and N-H stretching”
Zhang 等 - 2022 - Metal Complexes of the Porphyrin-Functionalized Po DOI: 10.3390/polym14030449
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