What absorbs at 1404 cm⁻¹ in an FTIR spectrum?
A band near 1404 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 |
|---|---|---|---|
| Carboxyl (COOH) | 2 | 2 | 0.9 |
| Phosphate (PO4) | 1 | 1 | 0.95 |
| C n single bond | 1 | 1 | 0.9 |
| Alkyl C-H | 1 | 1 | 0.9 |
| Carbonate | 1 | 1 | 0.9 |
| Amide | 1 | 1 | 0.9 |
| Carbonyl (C=O) | 1 | 1 | 0.9 |
| N h | 1 | 1 | 0.9 |
순위는 단일 권위 규칙이 아닌 축적된 문헌 증거를 반영합니다. 항상 샘플 상황에 대해 확인하세요.
이 할당의 배경이 되는 문헌
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Phosphate (PO4) 신뢰도 0.95
“Explicit assignment: '1404 for ... P=O'”
Hamza 等 - 2023 - A Phosphonic Functionalized Biopolymer for the Sor DOI: 10.3390/su15032843 -
N h 신뢰도 0.9
“Snippet: 'bands were identified at 1560 and 1404 typical of the N-H group bending vibration'”
Fernandes 等 - 2011 - Cytocompatibility of Chitosan and Collagen-Chitosa DOI: 10.1590/S0104-14282011005000008 -
Carboxyl (COOH) 신뢰도 0.9
“Assigned to COO- symmetric stretching”
Pebotuwa 等 - 2020 - Influence of the Sample Preparation Method in Disc DOI: 10.3390/molecules25071551 -
Carbonyl (C=O) 신뢰도 0.9
“Explicit assignment: (C=O) stretching of amide groups, at 1403.63”
Pinto Cotrim 等 - 2016 - Preparation of beta-CyclodextrinLatex Dispersion DOI: 10.7569/JRM.2015.634122 -
Carbonate 신뢰도 0.9
“Assigned to asymmetric stretching (ν3) of CO32-.”
Reyes 等 - 2021 - Kinetics of the Thermal Decomposition of Rhodochro DOI: 10.3390/min11010034 -
Alkyl C-H 신뢰도 0.9
“Text: '1403.69 (C-H)'”
Thampraphaphon 等 - 2022 - High Potential Decolourisation of Textile Dyes fro DOI: 10.3390/microorganisms10050992 -
C n single bond 신뢰도 0.9
“Explicit assignment: 'absorption band at 1404 ... C-N stretching'”
Yao 等 - 2019 - Development of Eco-Friendly Soy Meal Adhesives Enh DOI: 10.1155/2019/8697047 -
Carboxyl (COOH) 신뢰도 0.9
“Explicit: 'absorption bands at 1454, and 1404 were related to stretching vibrations of carboxyl groups'”
Yao 等 - 2023 - Facile Preparation and Adsorption Behavior Studies DOI: 10.21203/rs.3.rs-1889584/v1
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