FTIR 峰位解讀
What absorbs at 1749 cm⁻¹ in an FTIR spectrum?
A band near 1749 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
可能的官能基指派
| 官能基 | 支持事實 | 引用來源 | 最高信心 |
|---|---|---|---|
| Carbonyl (C=O) | 4 | 4 | 0.95 |
| Carboxyl (COOH) | 2 | 2 | 0.9 |
| Ester | 1 | 1 | 0.9 |
| Lipid | 1 | 1 | 0.9 |
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
-
信心 1.0
“Vibration assigned to C=O”
Thabede 等 - 2021 - Magnetite Functionalized Nigella Sativa Seeds for DOI: 10.1155/2021/6655227 -
Carbonyl (C=O) 信心 0.95
“Explicit assignment in text.”
Arul 等 - 2023 - Detoxification of Toxic Organic Dye by Heteroatom- DOI: 10.3390/agronomy13010205 -
Carbonyl (C=O) 信心 0.9
“Assigned to carbonyl mode of P700+”
Breton 等 - 1999 - FTIR study of the primary electron donor of photos DOI: 10.1021/bi991216k -
Carboxyl (COOH) 信心 0.9
“Peak/trough at 1749/1740 cm-1 assigned to carboxyl group affected by CO binding.”
Marechal 等 - 2012 - Assignment of the CO-sensitive carboxyl group in m DOI: 10.1016/j.bbabio.2012.03.036 -
Carbonyl (C=O) 信心 0.9
“C=O absorption peak at 1749 cm-1”
Han 等 - 2018 - Biodegradable and Toughened Composite of Poly(Prop DOI: 10.3390/ijms19072032 -
Lipid 信心 0.9
“Explicit assignment: 'lipid band at 1749 cm-1'”
Lojewski 等 - 2011 - Reflective and photoacoustic infrared spectroscopi DOI: 10.1007/s00339-011-6512-z -
Ester 信心 0.9
“C=O (ester) stretching”
Prabsangob 和 Benjakul - 2018 - Enhancement of thermal stability of soybean oil by DOI: 10.9755/ejfa.2018.v30.i11.1862 -
信心 0.9
“Stretching vibration peak for PLA.”
Wang 等 - 2018 - Influence of the Lignin Content on the Properties DOI: 10.3390/polym10091013
有包含此波峰的圖譜嗎？
上傳您的FTIR圖譜，幾秒內即可獲得完整的解讀報告——包含帶有文獻引用的峰位指派、圖譜庫比對以及信心等級評估的證據鏈。
解讀我的圖譜