What absorbs at 450 cm⁻¹ in an FTIR spectrum?
A band near 450 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 |
|---|---|---|---|
| Metal oxygen | 9 | 9 | 1.0 |
| Silicon nitrogen | 1 | 1 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 0.8 |
| Silicon-oxygen (Si-O) | 1 | 1 | 0.8 |
| Carboxyl (COOH) | 1 | 1 | 0.6 |
| Phosphate (PO4) | 1 | 1 | 0.5 |
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
-
置信度 1.0
“The cm-1 567cm-1 absorption bands ~ 449.86 and ~ are associated with the stretching vibration of cm-1 Fe-O and FeO octahedral rotation.”
Asif 等 - 2021 - Evolution of structure and improvement in dielectr DOI: 10.1016/j.ceramint.2020.11.005 -
Silicon nitrogen 置信度 1.0
“Attributed to Si-N stretching due to silicon nitride.”
Ouadah 等 - 2022 - Optical and photoelectrochemical properties of nit DOI: 10.1080/2374068X.2021.1890420 -
Metal oxygen 置信度 0.95
“Explicit assignment: 'absorption peaks appear at 450 and 491 which represent the Mn-O bending'”
Thakur 等 - 2016 - Study Of Variation In The Band Gap With Concentrat DOI: 10.1063/1.4946465 -
Metal oxygen 置信度 0.9
“Text: 'cm-1 450 corresponds to the bending vibration of Ni-O bond.'”
Gondal 等 - 2012 - Synthesis of nickel oxide nanoparticles using puls DOI: 10.1016/j.apsusc.2012.03.147 -
置信度 0.9
“Explicit assignment in text”
Guo 等 - 2010 - Micro-Raman and FTIR Spectroscopic Observation on DOI: 10.1021/jp9104147 -
置信度 0.9
“asymmetrical stretching vibrations of SiO tetrahedra”
He 等 - 2011 - Morphology and Structure of Aluminum Substituted C DOI: 10.4028/www.scientific.net/AMR.287-290.1193 -
置信度 0.9
“Text: '450 is attributed to Y-O vibrational mode'”
Rajendra 和 Pandurangappa - 2019 - Synthesis and luminescence properties of europium- DOI: 10.1007/s00339-019-2990-1 -
置信度 0.9
“Explicit assignment: 'A-O (at ~450 cm-1) vibrations'”
Tatarchuk 等 - 2021 - Green synthesis, structure, cations distribution a DOI: 10.1016/j.molliq.2021.115375
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