What absorbs at 1397 cm⁻¹ in an FTIR spectrum?
A band near 1397 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 |
|---|---|---|---|
| Alkyl C-H | 2 | 2 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Carbonate | 1 | 0 | 1.0 |
| Lipid | 1 | 0 | 1.0 |
| N n bond | 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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Carboxyl (COOH) 信心 1.0
“The results of TLC analysis indicated that purified EPSs cm-1, A peak at 1397 which is due to the carboxyl L.”
Optimization of food-grade medium for co-production of bioactive substances by Lactobacillus acidophilus LA-5 for explaining pharmabiotic mechanisms of probiotic DOI: 10.1007/s13197-020-04894-5 -
Alkyl C-H 信心 1.0
“N-H 725 bending vibration 1371 CH bending vibration 1397 CH bending vibration 2 2”
Cheng 等 - 2022 - Development of a High-Strength and Adhesive Polyac DOI: 10.1021/acsomega.1c06626 -
Alkyl C-H 信心 1.0
“The peaks at 1397 and 1017 were attributed to the characteristic absorption bands of the CH groups.”
Du 等 - 2020 - Synthesis, Property and Mechanism Analysis of a No DOI: 10.3390/min10020128 -
信心 1.0
“The difference between the asymmetrical (1658 and 1605 cm-1) and symmetrical (1420 cm-1 and 1397cm-1) vibrations indicates that one citrate ion coordinates one metal atom (Raju et al., 2017).”
Janusz 等 - 2020 - Synthesis of citrates of selected lanthanides (Er, DOI: 10.37190/ppmp/128739
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