What absorbs at 540 cm⁻¹ in an FTIR spectrum?
A band near 540 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 |
|---|---|---|---|
| Ring structure | 1 | 1 | 1.0 |
| Metal carbon | 1 | 1 | 0.9 |
| Thiol | 1 | 1 | 0.7 |
| Metal oxygen | 1 | 0 | 0.8 |
| Phosphate (PO4) | 1 | 0 | 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
-
Ring structure 置信度 1.0
“Explicit assignment in text.”
Mandal 和 Das - 2018 - Biodegradation of perylene and benzo [ghi] perylen DOI: 10.22438/jeb/39/1/MRN-540 -
置信度 1.0
“Text: 'band that occurs at about 540 cm-1 ... deformational Si-O vibrations'”
Perisic 等 - 2016 - Physicochemical characterisation of pottery from t DOI: 10.2298/JSC160823100P -
置信度 0.9
“Attributed to normal vibration mode of La-O.”
Singh 等 - 2021 - Reddish-orange emission from sol-gel derived Sm3+- DOI: 10.1016/j.ijleo.2020.165935 -
置信度 0.9
“Explicit assignment: ABO3 vibration at 540 cm-1.”
Victoria 等 - 2015 - An insight in the structural, morphological, elect DOI: 10.1016/j.matchemphys.2015.07.015 -
Metal carbon 置信度 0.9
“Explicit assignment for R”
Ashfaq 等 - 2016 - SYNTHESIS AND BIOLOGICAL ACTIVITY OF NEW SERIES OF DOI: 10.5935/0100-4042.20150171 -
置信度 0.9
“explicit assignment”
Kashif 和 Ratep - 2023 - Luminescence in Er3+ co-doped bismuth germinate gl DOI: 10.1007/s43207-022-00281-2 -
置信度 0.8
“Absorption peak originated from hydrogen bond.”
Li 等 - 2022 - The Effect of Surface Hydroxyls on the Humidity-Se DOI: 10.3390/nano12030467 -
Thiol 置信度 0.7
“Text mentions 'absorption peaks of 540 and 475 [HOOCCH2mim][HSO4]' and later 'peak at 475 and the organic sulfur removal'; 540 likely corresponds to -SH.”
Xu 等 - 2020 - Experimental Study on Organic Sulfur Removal in Bi DOI: 10.1021/acsomega.0c02795
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