What absorbs at 1703 cm⁻¹ in an FTIR spectrum?
A band near 1703 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
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Carbonyl (C=O) | 4 | 4 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 0.9 |
| Urethane | 1 | 1 | 0.9 |
排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。
這些指派背後的文獻
-
Carbonyl (C=O) 信心 1.0
“Text: 'down-shifted from 1703 cm-1 (C=O stretching)'”
Lin 等 - 2010 - Curve-fitting FTIR studies of loratadinehydroxypr DOI: 10.1016/j.jpba.2010.06.010 -
Carbonyl (C=O) 信心 1.0
“Assigned to C=O bond of carboxylic acid moiety.”
Luo 等 - 2019 - A Mechanism for the Adsorption of 2-(Hexadecanoyla DOI: 10.3390/min9010015 -
Carbonyl (C=O) 信心 0.9
“absorption bands of EOA”
Bahadi 等 - 2021 - Synthesis and Characterization of Green Biodegrada DOI: 10.33263/BRIAC116.1435914371 -
信心 0.9
“Explicit assignment in snippet.”
Miroiu 等 - 2010 - Composite biocompatible hydroxyapatite-silk fibroi DOI: 10.1016/j.mseb.2009.10.004 -
Urethane 信心 0.9
“Band at 1703 cm-1 assigned to C=O of urethane.”
Haraguchi 等 - 2013 - Glycerol-derived polyurethane nanocomposites conta DOI: 10.4025/actascitechnol.v35i4.20276 -
信心 0.9
“1703 cm-1 attributed to C=O str. of dimer”
Mondal 等 - 2018 - Tetrapolymer Network Hydrogels via Gum Ghatti-Graf DOI: 10.1021/acsomega.8b01218 -
信心 0.9
“Explicit assignment: stretching band at 1703 cm-1 related with C=O bond in carboxylic group of TNF.”
Otmakhova 等 - 2021 - New complexes of liquid crystal discotic triphenyl DOI: 10.1039/d1cp00660f -
Hydroxyl (O-H) 信心 0.9
“Same sentence as above.”
Shetty 等 - 2022 - Recycling of carbon fiber reinforced polymers in a DOI: 10.1016/j.heliyon.2022.e12242
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