What absorbs at 919 cm⁻¹ in an FTIR spectrum?
A band near 919 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
可能的官能团归属
| 官能团 | 支持性事实 | 引用来源 | 最高置信度 |
|---|---|---|---|
| Alkyl C-H | 4 | 4 | 1.0 |
| C c single bond | 3 | 3 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
| N h | 1 | 1 | 1.0 |
| Methoxy (OCH3) | 1 | 1 | 1.0 |
| Methacrylate | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Acetate | 1 | 1 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1.0 |
| Ring structure | 1 | 1 | 1.0 |
| Metal oxygen | 1 | 1 | 1.0 |
排名反映了累积的文献证据，而非单一的权威规则。请始终对照您的样品背景进行确认。
这些分配背后的文献
-
Alkyl C-H 置信度 1.0
“The aliphatic bands in the xylite sample BEX at 2,919 cm-1 2,851 show lower intensities in the chars.”
Georgakopoulos 等 - 2003 - Study of low rank Greek coals using FTIR spectrosc DOI: 10.1080/00908310390232442 -
C c single bond 置信度 1.0
“1046.54 1024.02 CH rocky 945.02 2 C-C Stretching 918.58”
Abead 等 - 2023 - Study physical characteristics of Polyvinyl Alcoho DOI: 10.15764/pche.2014.02001. -
Metal oxygen 置信度 1.0
“The peaks at 943 and 919 cm-1 in 1 cm-1 cm-1 ν 1 919 in and at 939 and 915 in {P 2W 17} could be assigned to terminal as(W O t) vibration.”
Ibrahim 等 - 2020 - Synthesis, Characterization, Electrochemistry, Pho DOI: 10.3390/molecules25184229 -
C c single bond 置信度 1.0
“1038 C-C deformation 958 C-C stretching 919 CH2 rocking”
Kannan 等 - 2023 - Exploration of third order nonlinear optical featu DOI: 10.15251/DJNB.2023.181.367 -
Hydroxyl (O-H) 置信度 1.0
“stretching), 918.86 (O-H bending in finger print region), 761.61 (Aromatic region in finger print).”
Kumar 等 - 2018 - Identification of Degradant Products of Saroglitaz DOI: 10.5530/ijper.52.4.74 -
置信度 1.0
“The peak at 919 is reduced and overlapped by the shoulder of the Si-O bond peak and is completely removed from samples treated at higher temperatures ◦C”
Multi-Technique Analytical Approach to Quantitative Analysis of Spodumene DOI: 10.3390/min12020175 -
Alkyl C-H 置信度 1.0
“Theabsorptionbandat1420.2cm-1, 1086.2cm-1, 919.3cm-1, and828.6cm-1 were attributed to C-H wagging vibrations in the -CH group, C-O, CH stretching, and 2 2 C-C stretching vibrations, respectively [31,32].”
Date-Palm-Derived Cellulose Nanocrystals as Reinforcing Agents for Poly(vinyl alcohol)/Guar-Gum-Based Phase-Separated Composite Films DOI: 10.3390/nano -
Ring structure 置信度 1.0
“It is worthy to remind here However, the performed calculations clearly suggest that the cm-1 the sensitivity of the band with peak frequency at 919 to modes underlying those frequencies are due to CNN and ring isotopic substitution (see Fi”
Low-Temperature FTIR Spectroscopic and Theoretical Study on an Energetic Nitroimine: Dinitroammeline (DNAM) DOI: 10.1021/jp711153g
是否有此波段的光谱？
上传您的FTIR光谱，几秒钟内即可获得完整的解读报告——包含带文献引用的峰分配、库匹配和带有置信度评级的证据链。
解读我的光谱