What absorbs at 842 cm⁻¹ in an FTIR spectrum?
A band near 842 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
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Silicon-oxygen (Si-O) | 2 | 2 | 0.9 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Alkene (C=C) | 1 | 1 | 0.9 |
| Metal oxygen | 1 | 1 | 0.8 |
| C c single bond | 1 | 1 | 0.6 |
| Alkyl C-H | 1 | 1 | 0.6 |
排名反映累積的文獻證據，而非單一權威規則。請務必根據您的樣品背景進行確認。
這些指派背後的文獻
-
Hydroxyl (O-H) 信心 1.0
“6observed in the wavenumber region 820-870 The investigation of peak profile of PF a band with octahedral symmetry (O h) of polymer salt system (Fig 8 a) suggests the presence of asymmetry in the characteristic band with cm-1 maxima at 842”
Arya 等 - 2018 - Effect of variation of different nanofillers on st DOI: 10.1007/s11581-016-1784) -
Silicon-oxygen (Si-O) 信心 0.9
“Text states 'SiO internal stretching modes at 861, 842, and 830 cm-1'.”
Liu 等 - 2019 - In-situ high-temperature vibrational spectra for s DOI: 10.2138/am-2019-6604 -
Alkene (C=C) 信心 0.9
“Snippet: '842 ... representing -CH=CH'”
Yadav 等 - 2021 - Evaluation of tire derived rubber (TDR) fixed biof DOI: 10.1080/09593330.2020.1737736 -
信心 0.9
“Explicit assignment: 'NO stretches occurred at 842.5'”
Alramadhan 等 - 2023 - Structures, Characterization and DFT Studies of Fo DOI: 10.3390/cryst13050738 -
Silicon-oxygen (Si-O) 信心 0.9
“Explicit assignment: 'peak at 842 was attributed to Si-O group'”
Kamil 等 - 2020 - Treatment of Palm Oil Mill Effluent by Poly(L-Lact DOI: 10.17576/jsm-2020-4909-28 -
信心 0.9
“Same assignment.”
Kumar 等 - 2022 - Flexible Temperature Sensor Utilizing MWCNT Doped DOI: 10.3390/mi13020197 -
Metal oxygen 信心 0.8
“Assigned to strong stretching vibrations of the Zr-O group.”
Krenek 等 - 2019 - Formation of metastable zirconium oxides using pul DOI: 10.1088/1757-899X/613/1/012016 -
Alkyl C-H 信心 0.6
“Either C-H rocking mode or C-C stretching.”
Aziz 等 - 2019 - Structural and Optical Characteristics of PVAC-Do DOI: 10.3390/nano9020216
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