What absorbs at 1701 cm⁻¹ in an FTIR spectrum?
A band near 1701 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
가능한 작용기 할당
| 작용기 | 지원 사실 | 인용 출처 | 최고 신뢰도 |
|---|---|---|---|
| Carboxyl (COOH) | 2 | 2 | 1.0 |
| Carbonyl (C=O) | 2 | 2 | 1.0 |
| Alkyl C-H | 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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Carboxyl (COOH) 신뢰도 1.0
“In this speccm(cid:2)1 trum, the acid band is shifted slightly to 1701 but is [1] G.”
Topacli 等 - 2006 - Infrared studies of pyroelectric Langmuir-Blodgett DOI: 10.1016/j.molstruc.2006.03.083 -
Carbonyl (C=O) 신뢰도 1.0
“LLM confirmed rule peak-group candidate”
Ranjha 等 - 2014 - Preparation and Characterization of Isosorbide Mon DOI: 10.4314/tjpr.v13i12.4 -
Alkyl C-H 신뢰도 1.0
“2934-2929 and 2860-2857 (asymmetric and displayed a band at 1739-1735 corresponding to the symmetric C-H stretching) and 1460-1457 (asymmetric nonbonded carbonate carbonyl groups, but did not show cm-1 C-H bending) of CH the band at 1701 2;”
Aliphatic polycarbonate-based thermoplastic polyurethane elastomers containing diphenyl sulfide units DOI: 10.1007/s10973-016-5420-z -
Carbonyl (C=O) 신뢰도 1.0
“Anhydride modification of lignin was also confirmed cm-1, intensified peak recorded around 1701 which corresponds to the carbonyl stretching of ester by an intensified peak recorded around 1701 cm-1, which corresponds to the carbonyl stretc”
Effect of Lignin Modification on Properties of Kenaf Core Fiber Reinforced Poly(Butylene Succinate) Biocomposites DOI: 10.3390/ma12244043 -
Carboxyl (COOH) 신뢰도 1.0
“The weak peak at 1649 represents cm1 the stretching vibration of highly conjugated C = O, and the peak at 1701 corresponds to the characteristic stretching vibration of COOH carboxylic acid.”
Wang 等 - 2023 - Study on the thermal kinetics and microscopic char DOI: 10.21203/rs.3.rs-2868841/v1
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