What absorbs at 3440 cm⁻¹ in an FTIR spectrum?
A band near 3440 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
संभावित कार्यात्मक-समूह असाइनमेंट
| कार्यात्मक समूह | समर्थन तथ्य | उद्धृत स्रोत | शीर्ष विश्वास |
|---|---|---|---|
| Hydroxyl (O-H) | 24 | 23 | 1.0 |
| Water (H2O) | 3 | 3 | 1.0 |
| N h | 3 | 3 | 0.9 |
| Phenolic | 2 | 2 | 0.9 |
| Urea | 1 | 1 | 0.9 |
| Urethane | 1 | 1 | 0.9 |
| Amine primary | 1 | 1 | 0.9 |
| Carboxyl (COOH) | 1 | 1 | 0.9 |
| Lignin | 1 | 1 | 0.7 |
| Carbohydrate | 1 | 1 | 0.7 |
| Amide | 1 | 0 | 0.9 |
| Alkyl C-H | 1 | 0 | 0.8 |
रैंकिंग संचित साहित्य साक्ष्य को दर्शाती है, एक एकल आधिकारिक नियम नहीं। हमेशा अपने नमूना संदर्भ के खिलाफ पुष्टि करें।
इन असाइनमेंट के पीछे का साहित्य
-
Water (H2O) विश्वास 1.0
“Stretching vibration mode of adsorbed water molecules on the surface of ferrite.”
Anchieta 等 - 2014 - Effects of Solvent Diols on the Synthesis of ZnFe2 DOI: 10.3390/ma7096281 -
Hydroxyl (O-H) विश्वास 1.0
“Explicit assignment: 'at 3440.4 are attributed to the O-H stretching'”
El-Batal 等 - 2016 - Biodiesel Production by Aspergillus niger Lipase I DOI: 10.3390/bioengineering3020014 -
Hydroxyl (O-H) विश्वास 1.0
“assigned to hydroxyl groups”
Franca 等 - 2020 - Monitoring diclofenac adsorption by organophilic a DOI: 10.1016/j.envpol.2013.04.012 -
Hydroxyl (O-H) विश्वास 0.95
“Explicit assignment: 'prominent band centered at 3440 is O-H assigned to the tridentate stretching vibration'”
Jeyanthi 等 - 2014 - Structural and spectroscopic studies of rare earth DOI: 10.1016/j.ceramint.2014.01.076 -
Hydroxyl (O-H) विश्वास 0.95
“Part of the same region assigned to O-H stretching.”
Kaur 等 - 2020 - Removal of Pb (II) from aqueous solution using nan DOI: 10.1016/j.btre.2019.e00410 -
Hydroxyl (O-H) विश्वास 0.9
“Broad band due to hydroxyl groups”
Lagat 等 - 2021 - Antimicrobial Activity of Chemically and Biologica DOI: 10.3390/microorganisms9122417 -
विश्वास 0.9
“Same as above.”
Schingaro 等 - 2021 - New insights into the crystal chemistry of sauconi DOI: 10.2138/am-2020-7460. -
Hydroxyl (O-H) विश्वास 0.9
“Band at ~3440 cm-1 ascribed to oscillation of hydroxyl group.”
Sharma 等 - 2017 - Impact of CuS on the crystallization kinetics of N DOI: 10.1016/j.jnoncrysol.2017.09.046
क्या इस बैंड के साथ कोई स्पेक्ट्रम है?
अपना FTIR स्पेक्ट्रम अपलोड करें और सेकंड में एक पूर्ण व्याख्या रिपोर्ट प्राप्त करें — साहित्य उद्धरणों, पुस्तकालय मिलानों, और विश्वास-रेटेड साक्ष्य श्रृंखला के साथ शिखर असाइनमेंट।
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