What absorbs at 909 cm⁻¹ in an FTIR spectrum?
A band near 909 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 5 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 (Si) | 2 | 2 | 1.0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| Metal oxygen | 1 | 1 | 1.0 |
| Metal hydroxyl | 1 | 1 | 1.0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1.0 |
| Alkene (C=C) | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
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
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Alkyl C-H 信心 1.0
“Moreover, peaks at 909 and C-H out-of-plane C-H ascribed to bending modes and The conducted research is not related Ethical approval:”
Ahmad 等 - 2020 - Synthesis and characterization of a novel chitosan DOI: 10.1515/chem-2020-0137 -
Alkene (C=C) 信心 1.0
“As expected, crosslinking was induced in the polymer: radicals formed by radiations move rapidly along polyethylene chains in the amorphous phase and react easily with terminal double bonds cm-1 (absorption at 909 decreases), creating the s”
Barus 等 - 2009 - Preparation of polymeric hybrid nanocomposites bas DOI: 10.1016/j.polymer.2009.04.012 -
Siloxane (Si-O-Si) 信心 1.0
“H-OH bending of adsorbed water 1104 Si-O stretching 1104 Si-O stretching 1036 Si-O-Si stretching 1036 Si-O-Si stretching 909”
SO42-/Sn-MMT Solid Acid Catalyst for Xylose and Xylan Conversion into Furfural in the Biphasic System DOI: 10.3390/catal7040118 -
信心 1.0
“cm-1, cm-1 cm-1 The telescopic vibration adsorption peaks at 909 837 and 779 correspond to Al-O-H, Si-O and Mg-O-H in the SB chemical structure, respectively, and they were clearly abated, as evident in the spectra cm-1 of TLSB.”
Enhanced heavy metal removal from an aqueous environment using an eco-friendly and sustainable adsorbent DOI: 10.1038/s41598-020-73570-7 -
信心 0.9
“Explicit assignment: IR band at 909 cm-1 characteristic of 31 helical conformation of stereocomplex PLA.”
Crystallization and Stereocomplexation of PLA-mb-PBS Multi-Block Copolymers DOI: 10.3390/polym10010008
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