What absorbs at 844 cm⁻¹ in an FTIR spectrum?
A band near 844 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
Πιθανές αντιστοιχίσεις λειτουργικών ομάδων
| Λειτουργική ομάδα | Υποστηρικτικά δεδομένα | Αναφερόμενες πηγές | Κορυφαία εμπιστοσύνη |
|---|---|---|---|
| Silicon (Si) | 1 | 1 | 1,0 |
| Ring structure | 1 | 1 | 1,0 |
| Silicon-oxygen (Si-O) | 1 | 1 | 1,0 |
| Oxygen heterocycle | 1 | 1 | 1,0 |
| Sulfonate | 1 | 1 | 1,0 |
| Carbonyl (C=O) | 1 | 1 | 1,0 |
| Carbohydrate | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| C c single bond | 1 | 1 | 0,9 |
| Hydroxyl (O-H) | 1 | 0 | 0,8 |
Η κατάταξη αντικατοπτρίζει τα συσσωρευμένα βιβλιογραφικά στοιχεία, όχι έναν ενιαίο έγκυρο κανόνα. Πάντα να επιβεβαιώνετε με βάση το πλαίσιο του δείγματός σας.
Βιβλιογραφία πίσω από αυτές τις αντιστοιχίσεις
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C-O single bond εμπιστοσύνη 1,0
“In addition, small shoulder peaks at 844 cm-1 (1→4) β and 1077 are related to the glycosidic link and linkages between the sugar cm-1, monomers.”
Biochemical and Structural Characterization of Ferulated Arabinoxylans Extracted from Nixtamalized and Non-Nixtamalized Maize Bran DOI: 10.3390/foods11213374 -
Carbonyl (C=O) εμπιστοσύνη 1,0
“The PVA-metal salt complexes can be used as solid electrolytes in different energy conversion A 1733=A ð1Þ RI of carbonyl peak RI ¼ ¼ 844 ½C¼O=CH(cid:1) devices such as batteries/fuel cells, photo-electrochemical A 1578=A RI of terminal dou”
Parveen 等 - 2009 - Synthesis and characterizations of nano-sized Ni(O DOI: 10.1007/s10853-009-3826-8 -
Sulfonate εμπιστοσύνη 1,0
“The peaks observed at 3373, 1221, 1037, 1157, 924 and 844 cm-1 can be attributed cm-1 1356-1374 attributed to sulphate (SO 3) group stretching in 1.5-3% CARR:SA (1:0) wafers.”
Akiyode 和 Boateng - 2018 - Composite Biopolymer-Based Wafer Dressings Loaded DOI: 10.3390/polym10080918 -
Oxygen heterocycle εμπιστοσύνη 1,0
“In addition, after modification, FTIR peaks that assigned to the epoxy ring (844 cm-1 and 904 cm-1) were decreased.”
Mazlan 和 Abu Hanifah - 2014 - Synthesis and Effect of Modification On Methacylat DOI: 10.1063/1.4895206 -
εμπιστοσύνη 1,0
“The (001) interplanar Furthermore, Si-O stretching of Al-Mg-OH (844”
Natkanski 等 - 2013 - Effect of Fe3+ ions present in the structure of po DOI: 10.1007/s10973-013-3225-x -
Ring structure εμπιστοσύνη 1,0
“and possibly glycosidic bonds and cyclic structures of On the other hand, the negative cm-1, cm-1 cm-1 influence had peaks at 1152 1109 (C-O stretching and C-C stretching), and 844 (Ring vibration), indicating carbohydrates which might incl”
Spectroscopy and SEM imaging reveal endosymbiont-dependent components changes in germinating kernel through direct and indirect coleorhiza-fungus interactions under stress DOI: 10.1038/s41598-018-36621-8 -
Silicon (Si) εμπιστοσύνη 1,0
“structures of PDMS The peaks at 844 and 796 attribute to SiOH-PDMS copolymerization Si-C23, 24.”
Determination of Phenols Isomers in Water by Novel Nanosilica/Polydimethylsiloxane-Coated Stirring Bar Combined with High Performance Liquid Chromatography-Fourier Transform Infrared Spectroscopy DOI: 10.1038/s41598-017-09050-2 -
C c single bond εμπιστοσύνη 0,9
“Text: '844 (νCC, rCH)'”
Sodium montmorillonite/ureasil-poly(oxyethylene) nanocomposite as potential adsorbent of cationic dye DOI: 10.1016/j.clay.2017.11.009
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