What absorbs at 987 cm⁻¹ in an FTIR spectrum?
A band near 987 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 |
|---|---|---|---|
| Water (H2O) | 1 | 1 | 1.0 |
| Oxygen heterocycle | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Silicon (Si) | 1 | 1 | 1.0 |
| Metal oxygen | 1 | 1 | 1.0 |
| Alkene (C=C) | 1 | 0 | 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
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置信度 1.0
“3), only head-to-tail (C-I) and head-to-head (C-II) arrangements, cm(cid:2)1 one dominant band at 987 can be observed for comp-electrons where delocalisation of is maximal.”
Lukes 等 - 2006 - The experimental and theoretical characterisation DOI: 10.1016/j.chemphys.2006.02.021 -
Metal oxygen 置信度 1.0
“cm-1), (*1083 structure shows characteristic P-O stretching c cm-1), (*987 W-O stretching stretching of W-O c-W terminal inter bridges between corner-sharing WO octahedra 6”
Rao 和 Rajkumar - 2008 - Investigation of 12-tungstophosphoric acid support DOI: 10.1007/s10562-007-9279-2 -
Silicon (Si) 置信度 1.0
“ν 12.5T (S 4mD 70), the shift of asSi-O-Si band to lower wavenumber from 50 (Δ=18cm-1) significant 987cm-1 1005 to is more suggesting a higher dissolution reaction (Fig.”
Physico-chemistry of silica / Na silicate interactions during consolidation. Part 2: Effect of pH DOI: 10.1016/j.jnoncrysol.2011.11.005 -
Alkyl C-H 置信度 1.0
“The spectrum of irradiated tung oil with acetone 3 cm-1 (C-H)CH (8), whereas peaks at 987 and 950 correspond was similar to that of irradiated acetone, but with much smaller”
Wang 等 - 2008 - Fourier transform infrared spectra of drying oils DOI: 10.1021/jf073545m -
Oxygen heterocycle 置信度 1.0
“The strong peak at 1033 intense group of peaks at 2856, 2873, 2928, and 2958 cm-1 is due to asymmetric stretching, while the cm-1 in the mid-infrared region may be characteristic lower-intensity peak at 987 cm-1 is attributed to Siof a coat”
Zhang 等 - 2013 - CHARACTERISTICS OF COATED JADEITE JADE DOI: 10.5741/GEMS.49.4.246. -
Water (H2O) 置信度 1.0
“S3a, the IR cm-1, spectrum of the water-soluble compounds shows bands peaked at 987, 1074, 1105, 1163 and 1589 which cm-1 are very close of IR bands at 984, 1070, 1112, 1161 and 1587 (Fig.”
Correlated studies of photoluminescence, vibrational spectroscopy and mass spectrometry concerning the pantoprazole sodium photodegradation DOI: 10.1038/s41598-022-13648-6
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