What absorbs at 1745 cm⁻¹ in an FTIR spectrum?
A band near 1745 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 |
|---|---|---|---|
| Carbonyl (C=O) | 17 | 15 | 1.0 |
| Carboxyl (COOH) | 6 | 6 | 1.0 |
| Ester | 5 | 5 | 0.95 |
| Lipid | 3 | 3 | 0.95 |
| Alkyl C-H | 2 | 2 | 0.8 |
| C-O single bond | 1 | 1 | 1.0 |
| Acetyl | 1 | 1 | 0.9 |
| Quinone | 1 | 1 | 0.9 |
| Metal oxygen | 1 | 1 | 0.9 |
| Triglyceride | 1 | 1 | 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
-
Carbonyl (C=O) विश्वास 1.0
“C=O stretching in carboxylic group”
Ismael 等 - 2020 - Removal of Hexavalent Chromium by Cross-Linking Ch DOI: 10.1007/s40710-020-00447-2 -
Carbonyl (C=O) विश्वास 1.0
“Explicit assignment: (C = O) 1745cm-1”
Amara 等 - 2013 - Specific migration of IRGASTAB 17 MOK and DBP from DOI: 10.1051/matecconf/20130301029 -
Carbonyl (C=O) विश्वास 1.0
“Bands at 1745 resulting from stretching vibrations of carbonyl (C=O) or carboxyl (COOH) groups.”
Mohsin 等 - 2022 - How alanine catalyzes melanoidin formation and deh DOI: 10.1007/s00217-022-03989-x -
C-O single bond विश्वास 1.0
“Explicit assignment: -C O stretching mode, peak at 1745”
Schreiver 等 - 2017 - Synchrotron-based nu-XRF mapping and mu-FTIR micro DOI: 10.1038/s41598-017-11721-z -
Carbonyl (C=O) विश्वास 0.95
“Explicit assignment: 'C=O stretching at 1745 was selected for the estimation of lipids'”
Dzurendova 等 - 2021 - Calcium Affects Polyphosphate and Lipid Accumulati DOI: 10.3390/jof7040300 -
Carbonyl (C=O) विश्वास 0.95
“Explicit assignment: 'C=O ester peak (1745 cm-1)'.”
Kosa 等 - 2018 - High-throughput screening of Mucoromycota fungi fo DOI: 10.1186/s13068-018-1070-7 -
Lipid विश्वास 0.95
“Explicit assignment in text: 'absorption band at 1745 is related to the stretching vibration of C=O ester group of lipids'”
Maribel Mata-Miranda 等 - 2017 - Morphological, molecular and FTIR spectroscopic an DOI: 10.1186/s40659-017-0119-6 -
Carbonyl (C=O) विश्वास 0.9
“Explicit assignment: peak around 1745 is due to presence of an ester carbonyl group.”
Hasnain 和 Sharma - 2019 - Evaluation of the performance and emission and spe DOI: 10.1039/c9ra04342j
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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