What absorbs at 3645 cm⁻¹ in an FTIR spectrum?
A band near 3645 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 7 cited sources
Galimi funkcinių grupių priskyrimai
| Funkcinė grupė | Pagrindžiantys faktai | Cituoti šaltiniai | Aukščiausias pasitikėjimas |
|---|---|---|---|
| Hydroxyl (O-H) | 7 | 6 | 1,0 |
| Silicon (Si) | 1 | 1 | 1,0 |
Reitingavimas atspindi sukauptą literatūros įrodymų kiekį, o ne vieną autoritetingą taisyklę. Visada patvirtinkite pagal savo mėginio kontekstą.
Literatūra, kuria remiantis atlikti šie priskyrimai
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Hydroxyl (O-H) pasitikėjimas 1,0
“t h o cm-1 bacteriorhodopsin78) The apparent depletion band at ~3645 (first observed in was at r M Tyr-5778”
Dioumaev 等 - 2010 - Low-Temperature FTIR Study of Multiple K Intermedi DOI: 10.1021/jp908698f. -
Hydroxyl (O-H) pasitikėjimas 1,0
“cm-1 In all the paste samples, the peak at 3645 indicates the presence of free OH In all the paste samples, the peak at 3645 cm-1 indicates the presence of free OH groups, which suggests the presence of the portlandite phase.”
Evaluation of Mechanical and Microstructural Properties and Global Warming Potential of Green Concrete with Wheat Straw Ash and Silica Fume DOI: 10.3390/ma15093177 -
Hydroxyl (O-H) pasitikėjimas 1,0
“This resulted in the loss of all B-type carbonate h o cm-1 cm-1 and interestingly, a new hydroxyl peak at 3645 (FTIR spectra) and at 3615 r M”
Carbonate substitution in the mineral component of bone: Discriminating the structural changes, simultaneously imposed by carbonate in A and B sites of apatite DOI: 10.1016/j.jssc.2017.07.025. -
Hydroxyl (O-H) pasitikėjimas 1,0
“LLM confirmed rule peak-group candidate”
Morgan 等 - 2007 - Water structural changes in the L and M photocycle DOI: 10.1021/bi0616596. -
Hydroxyl (O-H) pasitikėjimas 1,0
“LLM confirmed rule peak-group candidate”
Fixed bed adsorption column studies and models for removal of ibuprofen from aqueous solution by strong adsorbent Nano-clay composite DOI: 10.1007/s40201-019-00392-9 -
Hydroxyl (O-H) pasitikėjimas 1,0
“The peak at 3645 was attributed to the hydroxyl groups of the montmorillonite layer [36].”
Adsorption of imidazolium and pyridinium ionic liquids onto montmorillonite: characterization and thermodynamic calculations DOI: 10.1016/j.cej.2012.07.128 -
Silicon (Si) pasitikėjimas 1,0
“Calibration curves tracted by the absorbance of the IR band around 3645 cm due to PE in the pure Si-g-LLDPE) against their concentration gave the calIn a recent study [8] , it was shown that the physical state ibration curve of Fig.”
Physico-chemical analysis of a silane-grafted polyethylene stabilised with an excess of Irganox 1076®. Proposal of a microstructural model DOI: 10.1016/j.polymdegradstab.2020.109453
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