What absorbs at 1669 cm⁻¹ in an FTIR spectrum?
A band near 1669 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 7 cited sources
가능한 작용기 할당
| 작용기 | 지원 사실 | 인용 출처 | 최고 신뢰도 |
|---|---|---|---|
| Carbonyl (C=O) | 2 | 2 | 1.0 |
| Amine primary | 1 | 1 | 1.0 |
| Metal oxygen | 1 | 1 | 1.0 |
| Carboxyl (COOH) | 1 | 1 | 1.0 |
| Alkene (C=C) | 1 | 1 | 1.0 |
순위는 단일 권위 규칙이 아닌 축적된 문헌 증거를 반영합니다. 항상 샘플 상황에 대해 확인하세요.
이 할당의 배경이 되는 문헌
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Carbonyl (C=O) 신뢰도 1.0
“LLM confirmed rule peak-group candidate”
Preparation and Characterization of Polymer Membranes Impregnated with Carbon Nanotubes for Olive Mill Wastewater DOI: 10.3390/polym14030457 -
Alkene (C=C) 신뢰도 1.0
“The peak at 1669 cm-1 may be attributed to the C=C stretching vibrations [19].”
Quantification of the Geranium Essential Oil, Palmarosa Essential Oil and Phenylethyl Alcohol in Rosa damascena Essential Oil Using ATR-FTIR Spectroscopy Combined with Chemometrics DOI: 10.3390/foods10081848 -
신뢰도 1.0
“Adsorption Mechanism cm-1 cm-1, nitrogen adsorption, the position of the peak was shifted from 3332.82 to 3270.09 and the 1654cm-1 1669cm-1, The possible adsorption mechanism of ammonium nitrogen onto the CTS-ZMS surface can be”
Chitosan Modified Zeolite Molecular Sieve Particles as a Filter for Ammonium Nitrogen Removal from Water DOI: 10.3390/ijms21072383 -
Carboxyl (COOH) 신뢰도 1.0
“S12 and Table Initially, a low rate was found until a glucose was converted mainly into HMF and to a lower degree ν July steady glucose concentration was established from the hydrointo carboxylic acids (increase of bands at 1669 and CvO cm-”
Kunov-Kruse 等 - 2013 - Revisiting the Bronsted acid catalysed hydrolysis DOI: 10.1039/c3gc41174e -
Metal oxygen 신뢰도 1.0
“Furthermore, the appearance of peaks at 531 and cm-1 1051 clearly shows various modes of bending vibration associated with the Cu-O cm-1 bond while the presence of the peak at 1669 also confirms the stretching vibration cm-1 of the Cu-O bon”
Nwanna 等 - 2021 - Biosynthesis and Fabrication of Copper Oxide Thin DOI: 10.3390/coatings11121545 -
Carbonyl (C=O) 신뢰도 1.0
“1669 cm-1 to the stretching vibration peak of carbonyl C=O;”
Behavior and Mechanism of a Novel Hydrophobic Collector in the Flotation of Bastnaesite DOI: 10.3390/min12070817 -
Amine primary 신뢰도 1.0
“3435 NH2 asymmetric stretching 3340 NH2 symmetric stretching 1669 NH2 bending vibration”
Zhuang 等 - 2020 - Observation of Potential Contaminants in Processed DOI: 10.3390/app10124345
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