What absorbs at 1071 cm⁻¹ in an FTIR spectrum?
A band near 1071 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
Possible functional-group assignments
| Functional group | Supporting facts | Cited sources | Top confidence |
|---|---|---|---|
| C-O single bond | 2 | 2 | 0.9 |
| Hydroxyl (O-H) | 1 | 1 | 0.9 |
| C n single bond | 1 | 1 | 0.9 |
| Siloxane (Si-O-Si) | 1 | 1 | 0.8 |
| N h | 1 | 1 | 0.7 |
| Metal oxygen | 1 | 1 | 0.7 |
Ranking reflects accumulated literature evidence, not a single authoritative rule. Always confirm against your sample context.
Literature behind these assignments
-
C n single bond confidence 0.9
“Explicit assignment in text.”
Dewi 等 - 2019 - Green synthesis of Co3O4 nanoparticles using Eupho DOI: 10.1088/1757-899X/509/1/012105 -
confidence 0.9
“Part of DNA/RNA triad peaks”
Eikje - 2011 - DNA-RNA, DNA-DNA, DNA-protein and protein-protein DOI: 10.1117/12.874692 -
C-O single bond confidence 0.9
“Assigned to C-O stretching vibration.”
Zhao 等 - 2022 - The Evaluation of Carrageenan as a Novel and Envir DOI: 10.3390/min12101234 -
Hydroxyl (O-H) confidence 0.9
“Peak at 1071 cm-1 assigned to δ OH characteristic of pseudoboehmite.”
de Jesus Figueroa-Lara 等 - 2017 - Effect of Zirconia Nanoparticles in Epoxy-Silica H DOI: 10.3390/ma10101135 -
Siloxane (Si-O-Si) confidence 0.8
“Characteristic adsorption peak of SiO2.”
Ma 等 - 2020 - Preparation and Characterization of Furan-Matrix C DOI: 10.3390/polym12071480 -
C-O single bond confidence 0.8
“CO bond vibration in RNA.”
Yap 等 - 2021 - Detection of Prostate Cancer via IR Spectroscopic DOI: 10.3390/membranes11080591 -
Metal oxygen confidence 0.7
“Text: 'autopeak at 1071 (CeO band or functional group)'”
Guo 等 - 2015 - Rapid analysis and quantification of fluorescent b DOI: 10.1016/j.molstruc.2015.06.081 -
N h confidence 0.7
“Text: 'internal amino groups ... band frequencies of 1071cm-1 1040cm-1'”
Memon 等 - 2018 - Influence of Incorporating Silver Nanoparticles in DOI: 10.1155/2018/4845687
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