What absorbs at 3444 cm⁻¹ in an FTIR spectrum?
A band near 3444 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 |
|---|---|---|---|
| Hydroxyl (O-H) | 5 | 5 | 0.9 |
| N h | 2 | 2 | 0.9 |
| Water (H2O) | 1 | 1 | 0.8 |
| Carboxyl (COOH) | 1 | 1 | 0.8 |
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 0.9
“Explicit assignment in text: 'peak from alcohol chain for -OH strong bonded absorption (3444 cm-1)'”
Debataraja 等 - 2018 - Synthesis and Characterization of Nanocomposites o DOI: 10.22146/ijc.26660 -
信心 0.9
“Assigned to hydrogen-bonded NH stretching.”
Matsumoto 和 Honma - 2007 - NH stretching vibrations of pyrrole clusters studi DOI: 10.1063/1.2790894 -
Hydroxyl (O-H) 信心 0.9
“Band at 3444 cm-1 associated with -OH group.”
Dodoo 等 - 2022 - Postmarketing Surveillance for the Photosensitised DOI: 10.5650/jos.ess21402 -
Hydroxyl (O-H) 信心 0.9
“Explicit assignment: O-H, N-H stretching”
Kabirkoohian 等 - 2023 - Chemical Immobilization of Carboxymethyl Chitosan DOI: 10.1007/s12010-022-03916-6 -
N h 信心 0.9
“Band at ~3444 cm-1 corresponding to free N-H.”
Qiao 等 - 2022 - Effects of Fiber Volume Fraction and Length on the DOI: 10.3390/polym14153080 -
信心 0.9
“Band at 3444 cm-1 assigned to free aliphatic N-H group.”
Simic 等 - 2003 - Highly cooperative formation of bis-urea based sup DOI: 10.1021/ja037589x -
Hydroxyl (O-H) 信心 0.9
“stretching vibration of -OH from H2O”
Wang 等 - 2023 - Properties and Cementation Mechanism of Geopolymer DOI: 10.3390/ma16020480 -
Carboxyl (COOH) 信心 0.8
“Peak at 3444 cm-1 corresponds to carboxyl group.”
Zhang 等 - 2014 - Hydrogen production from CO2 reforming of methane DOI: 10.1016/j.jiec.2013.10.064
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