What absorbs at 920 cm⁻¹ in an FTIR spectrum?
A band near 920 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 hydroxyl | 2 | 2 | 0.95 |
| Alkyl C-H | 2 | 1 | 0.9 |
| C=n | 1 | 1 | 0.9 |
| C-O single bond | 1 | 1 | 0.9 |
| Silicon-oxygen (Si-O) | 1 | 1 | 0.9 |
| Phosphate (PO4) | 1 | 1 | 0.9 |
| Carboxyl (COOH) | 1 | 1 | 0.8 |
| Nitrogen heterocycle | 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
-
Metal hydroxyl 信心 0.95
“Explicit assignment: 'cm-1 Al-OH powder at 920 was attributed to bending vibration'.”
Zewdie 等 - 2022 - Flat sheet metakaolin ceramic membrane for water d DOI: 10.2166/wrd.2022.001 -
Phosphate (PO4) 信心 0.9
“Peak at 920 cm-1 assigned to phosphate group.”
Jaber 和 Kovacs - 2019 - Preparation and synthesis of hydroxyapatite bio-ce DOI: 10.14382/epitoanyag-jsbcm.2019.18 -
Metal hydroxyl 信心 0.9
“Al-OH in-plane vibration at 920 cm-1”
Bitay 等 - 2017 - PROVENANCE STUDY ON A SMALL SELECTION OF ROMAN POT DOI: 10.24193/subbchem.2017.4.13 -
Silicon-oxygen (Si-O) 信心 0.9
“Text: 'peaks assigned to Ti-O-Si (920 - 960 cm-1)'”
Hakki 等 - 2017 - The Effect of Interfacial Chemical Bonding in TiO2 DOI: 10.3791/56070 -
C-O single bond 信心 0.9
“Text: '≅920 C-O 1970 SiO combination band + 1037 or stretching negative, medium'”
Krivoshein 等 - 2022 - FTIR Photoacoustic and ATR Spectroscopies of Soils DOI: 10.1021/acsomega.1c05702 -
C=n 信心 0.9
“C=N (920 cm-1).”
de Souza Balbinot 等 - 2022 - Antibacterial Effect of Triazine in Barrier Membra DOI: 10.3390/polym14214482 -
Carboxyl (COOH) 信心 0.8
“Peak at 920 indicated presence of carboxylic groups due to copolymerization.”
Sukhlaaied 和 Riyajan - 2014 - Green Synthesis and Physical Properties of poly(Vi DOI: 10.1007/s10924-014-0651-1 -
Alkyl C-H 信心 0.8
“shifted from 917”
Kibedi-Szabo 等 - 2012 - Biodegradation Behavior of Composite Films with Po DOI: 10.1007/s10924-011-0391-4
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