What absorbs at 1718 cm⁻¹ in an FTIR spectrum?
A band near 1718 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
가능한 작용기 할당
| 작용기 | 지원 사실 | 인용 출처 | 최고 신뢰도 |
|---|---|---|---|
| Carbonyl (C=O) | 16 | 12 | 1.0 |
| Urethane | 2 | 2 | 0.9 |
| Ketone | 2 | 2 | 0.8 |
| Carboxyl (COOH) | 2 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 0.95 |
| Carbonate | 1 | 1 | 0.8 |
| Lignin | 1 | 0 | 0.9 |
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이 할당의 배경이 되는 문헌
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Carbonyl (C=O) 신뢰도 1.0
“Explicit assignment in text.”
Kharazmi 等 - 2015 - Structural, optical, opto-thermal and thermal prop DOI: 10.3762/bjnano.6.55 -
Alkyl C-H 신뢰도 1.0
“explicit assignment in text”
Nath 等 - 2021 - A novel double-side welding approach for friction DOI: 10.1007/s00170-021-06602-9 -
Carbonyl (C=O) 신뢰도 1.0
“Explicit assignment: 'C=O band at 1718 cm-1' for carboxylic acid groups.”
Zimudzi 等 - 2018 - Quantifying Carboxylic Acid Concentration in Model DOI: 10.1021/acs.macromol.8b01194. -
Carbonyl (C=O) 신뢰도 0.95
“Text: 'Presence of C=O and C-O stretch bends ... supported by the peaks at 1718 cm-1'”
Nchoe 等 - 2020 - Synthesis, characterization, and application of be DOI: 10.1016/j.molliq.2019.111991 -
Carbonyl (C=O) 신뢰도 0.95
“Negative carbonyl band of Glu-90 at 1718 cm-1”
Eisenhauer 等 - 2012 - In Channelrhodopsin-2 Glu-90 Is Crucial for Ion Se DOI: 10.1002/anie.201107509 -
Carbonyl (C=O) 신뢰도 0.9
“Text states 'C=O peak from 1714 to 1718 cm-1'.”
Ibrahim 等 - 2011 - A study of poly vinyl chloridepoly(butylene adipa DOI: 10.1007/s10965-010-9486-1 -
Carbonyl (C=O) 신뢰도 0.9
“Assigned to carbonyl groups in conformation gauche”
Lai 和 Wu - 2008 - Investigation on the conformations of AOT in water DOI: 10.1016/j.molstruc.2008.01.017 -
Urethane 신뢰도 0.9
“Explicit assignment: urethane peaks.”
Mudri 等 - 2020 - Comparative Study of Aromatic and Cycloaliphatic I DOI: 10.3390/polym12071494
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