What absorbs at 673 cm⁻¹ in an FTIR spectrum?
A band near 673 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 4 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 |
|---|---|---|---|
| Ring structure | 1 | 1 | 1.0 |
| C-S single bond | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Bronsted acid site | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 0 | 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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Bronsted acid site 信心 1.0
“The increase in wavenum1500, 1576, and 1604 While both monodentate nitrates cm-1, ber of this peak at temperatures above 423 K can be interpreted s(NH 3) may be overlapping to form the peak at 1245 and (cid:228) as the desorption of NH from”
Pena 等 - 2004 - Identification of surface species on titania-suppo DOI: 10.1021/jp0313122 -
Carbonyl (C=O) 信心 1.0
“Since these bands were stable toward evacuation at 673 cm-1) (together with a component around 2155 decreased in frequency)58 K (which is not typical of carbonyl bands at this 13CO concert (note that at very high coverages the satellite of”
Penkova 等 - 2007 - Effect of the preparation method on the state of n DOI: 10.1021/jp071927p -
C-S single bond 信心 1.0
“It is also noticed from the cm-1 1100 figure that the intensity of the CdTe peak decreases and the existence of C-S stretching vibracm-1, with the annealing temperature (shown in Figure S6) tions is indicated by the bands at 673 respecwhich”
A novel CdTe ink-assisted direct synthesis of CdTe thin films for the solution-processed CdTe solar cells DOI: 10.1007/s10853-020-04578-7 -
Ring structure 信心 1.0
“The appearance of a new peak at 673 in case of photo-degraded samples indicates the aromatization of PFA ring.”
Singh 等 - 2022 - Degradation of Polyfurfuryl Alcohol-Based Biopolym DOI: 10.21203/rs.3.rs-546187/v1
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