FTIR峰解读
What absorbs at 1121 cm⁻¹ in an FTIR spectrum?
A band near 1121 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 6 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 |
|---|---|---|---|
| Carbonate | 1 | 1 | 1.0 |
| Sulfate (SO4) | 1 | 1 | 0.9 |
| Nucleic acid | 1 | 1 | 0.8 |
| C n single bond | 1 | 1 | 0.8 |
| Aldehyde (CHO) | 1 | 1 | 0.8 |
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
-
Carbonate 置信度 1.0
“Text: 'sharp peaks like 1121.4 and 1426.6 cm-1 confirming that the carbonates had exhibited'.”
Venkatachalapathy 等 - 2022 - Synthesis, morphological, structural, functional, DOI: 10.15251/DJNB.2022.174.1441 -
置信度 0.9
“Explicit assignment in text.”
Hazeena 等 - 2022 - Extraction Optimization and Structural Characteris DOI: 10.3390/ma15227969 -
Sulfate (SO4) 置信度 0.9
“sulfate”
Sandu 等 - 2023 - Authentication of a Stradivarius Petite Violin T DOI: 10.3390/app -
Aldehyde (CHO) 置信度 0.8
“Text states 'bands at 1121, 1092, and 972 are due to the presence the aldehydes functional group'.”
Al-Shaibani 等 - 2021 - Enhanced Pharmaceutically Active Compounds Product DOI: 10.3390/molecules26092510 -
C n single bond 置信度 0.8
“C-N stretching vibration”
Hijazi 等 - 2019 - High iodine adsorption by polyethyleneimine impreg DOI: 10.1016/j.micromeso.2019.109586 -
Nucleic acid 置信度 0.8
“Shoulder of 1121 band due to RNA.”
Yap 等 - 2021 - Detection of Prostate Cancer via IR Spectroscopic DOI: 10.3390/membranes11080591
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