What absorbs at 1658 cm⁻¹ in an FTIR spectrum?
A band near 1658 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 |
|---|---|---|---|
| Amide | 8 | 4 | 0.9 |
| Carbonyl (C=O) | 4 | 4 | 0.9 |
| N h | 2 | 2 | 0.9 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Alkene (C=C) | 1 | 1 | 1.0 |
| C n single bond | 1 | 1 | 0.9 |
| Aromatic ring | 1 | 1 | 0.9 |
| Water (H2O) | 1 | 1 | 0.9 |
| Protein alpha helix | 1 | 0 | 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
-
Alkene (C=C) 信心 1.0
“Due to C=C stretching”
Thakur 和 Lokhande - 2017 - Dip time-dependent SILAR synthesis and electrochem DOI: 10.1007/s10008-016-3502-2 -
Hydroxyl (O-H) 信心 1.0
“Text: 'A strong peak at 1657.8 cm-1 ascribed to the hydroxyl group'.”
Venkatachalapathy 等 - 2022 - Synthesis, morphological, structural, functional, DOI: 10.15251/DJNB.2022.174.1441 -
Water (H2O) 信心 0.9
“Text: 'band at 1658 is attributed to bending mode (H-O-H).'”
Gondal 等 - 2012 - Synthesis of nickel oxide nanoparticles using puls DOI: 10.1016/j.apsusc.2012.03.147 -
信心 0.9
“Negative peak at 1658 cm-1 in amide I region”
Noguchi 等 - 1999 - Comparative FTIR analysis of the microenvironment DOI: 10.1021/bi981759e -
Carbonyl (C=O) 信心 0.9
“Explicit assignment in text”
Subashini 等 - 2014 - Anti-ESBL activity of silver nanoparticles biosynt DOI: 10.1007/s00449-013-1070-8 -
Amide 信心 0.9
“NI cell spectra characterized by band at ~1658 cm-1 in Amide I region.”
Ami 等 - 2021 - Pathological ATX3 Expression Induces Cell Perturba DOI: 10.3390/ijms22020943 -
Amide 信心 0.9
“Explicit assignment in text.”
Fanesi 等 - 2019 - Quantitative macromolecular patterns in phytoplank DOI: 10.1186/s12870-019-1736-8 -
信心 0.9
“Text: 'molecularly adsorbed HCOOH 1658cm-1'”
Kecskes 等 - 2004 - FTIR and mass spectrometric study of HCOOH interac DOI: 10.1016/j.apcata.2004.03.021
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