What absorbs at 400 cm⁻¹ in an FTIR spectrum?
A band near 400 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 |
|---|---|---|---|
| Metal oxygen | 2 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Phosphate (PO4) | 1 | 1 | 0.9 |
| Metal oxo | 1 | 1 | 0.9 |
| Methyl | 1 | 1 | 0.8 |
| Amide | 1 | 1 | 0.7 |
| Ring structure | 1 | 1 | 0.7 |
| Carboxyl (COOH) | 1 | 0 | 0.5 |
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
“500 The most intense bands of iprodione are located at 1781 cm-1, and 998 which are due to C=O stretching and ring 400 breathing, respectively.”
Armenta 等 - 2007 - Determination of iprodione in agrochemicals by inf DOI: 10.1007/s00216-007-1152-z -
信心 0.9
“Corresponds to Ge-Si bonding.”
Hai 等 - 2018 - Amorphous SixGeyO1-x-y thin films for uncooled inf DOI: 10.1016/j.infrared.2018.10.010 -
Metal oxygen 信心 0.9
“Explicit assignment: 'bands below 400 can be assigned to V-O and V-O-V'”
Nagaraju 等 - 2012 - Vanadium pentoxide nanobelts One pot synthesis an DOI: 10.1002/crat.201200122 -
Phosphate (PO4) 信心 0.9
“v2v4(PO4) band”
Grunenwald 等 - 2014 - Novel contribution on the diagenetic physicochemic DOI: 10.1007/s00216-014-7863-z -
信心 0.9
“Text: 'medium or strong peaks around 400 and 777-797 were attributed to Si-O from quartz'”
Radulescu 等 - 2019 - Seasonal Variability in the Composition of Particu DOI: 10.3390/atmos10100595 -
信心 0.8
“Explicit assignment: 'peaks near 400-600 corresponds to tetrahedral and octahedral complex'”
Bennet 等 - 2016 - Attestation in self-propagating combustion approac DOI: 10.1016/j.apsusc.2016.04.177 -
信心 0.8
“Absorption band between 400 and 700 cm-1 attributed to anatase.”
Ikram 等 - 2020 - Photocatalytic and bactericidal properties and mol DOI: 10.1039/d0ra05862a -
信心 0.8
“Raman peaks around 400 cm-1 for A1g and E2g active modes of 2H MoS2.”
Pradhan 等 - 2020 - Modulation of microstructural and electrical prope DOI: 10.1016/j.spmi.2020.106598
有包含此波峰的圖譜嗎？
上傳您的FTIR圖譜，幾秒內即可獲得完整的解讀報告——包含帶有文獻引用的峰位指派、圖譜庫比對以及信心等級評估的證據鏈。
解讀我的圖譜