What absorbs at 2845 cm⁻¹ in an FTIR spectrum?
A band near 2845 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
Możliwe przypisania grup funkcyjnych
| Grupa funkcyjna | Fakty wspierające | Cytowane źródła | Najwyższa wiarygodność |
|---|---|---|---|
| Alkyl C-H | 6 | 6 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
Ranking odzwierciedla zgromadzone dowody literaturowe, a nie pojedynczą autorytatywną zasadę. Zawsze potwierdzaj w kontekście swojej próbki.
Literatura stojąca za tymi przypisaniami
-
Hydroxyl (O-H) wiarygodność 1,0
“alkanes), 2845.21 (O-H stretch;”
Govindasamy 等 - 2019 - Evaluation of Salmonella bongori derived biosurfac DOI: 10.1016/j.ijbiomac.2019.08.034 -
Water (H2O) wiarygodność 1,0
“8(a) and (b), respectively, and Access the IR spectrum of 'MOH affected water' (M = Li, Na and K) plots of the CO absorbance observed in the N and O experi2 2 2 cm(cid:2)1 and assigned bands at 2845 and 2020 so obtained to the”
Christensen 等 - 2011 - The electro-oxidation of formate ions at a polycry DOI: 10.1039/c1cp20166b -
Alkyl C-H wiarygodność 1,0
“a couple of peaks at 2920 and 2845 cm-1 (iv) due to aliphatic C-H stretching;”
Dick 等 - 2017 - Impact of HNO3 Solution Treatment of South Brazil DOI: 10.21577/0103-5053.20160230 -
Alkyl C-H wiarygodność 1,0
“If the freshly while new peaks located around 2845 and 2960 licensed on moiety,30,31 which are attributed to the CH and CH show up.”
Gong 等 - 2015 - What causes extended layering of ionic liquids on DOI: 10.1039/c5sc00832h -
Alkyl C-H wiarygodność 1,0
“Infrared Spectroscopy cm-1 FTIR-ATR peaks (Figure 6) in HA spectra at 3290 are related to OH stretching, cm-1 cm-1 FTIR-ATR peaks (Figure 6) in HA spectra at 3290 cm-1 are related to OH stretching, at 2915 and 2845 to aliphatic CH groups, a”
Humic Acid Improves Zn Fertilization in Oxisols Successively Cultivated with Maize–Brachiaria DOI: 10.3390/molecules26154588 -
Alkyl C-H wiarygodność 1,0
“LLM confirmed rule peak-group candidate”
Coupled-PDMS grafted mesoporous γ-alumina membranes for solvent nanofiltration DOI: 10.1016/j.seppur.2016.05.057 -
Alkyl C-H wiarygodność 1,0
“The asymmetric and symmetric stretching of cm-1, cm-1 polymer CH groups correspond to the bands at 2845 and 2866 while the peaks at 1460 2 cm-1 and 1370 are due to their bending modes.”
Sol–Gel Synthesis of Silica-Based Materials with Different Percentages of PEG or PCL and High Chlorogenic Acid Content DOI: 10.3390/ma12010155 -
Alkyl C-H wiarygodność 1,0
“2919 Methylene units symmetry stretching Wavenumber Methyl C-H symmetry Assignments Origin of the Chemical Structures 2845 Methylene units (cm-1) stretching 3460 Hydroxyl (O-H) stretching Carboxyl acids, alcohols, hydroperoxides and etc.”
Aging Mechanism and Rejuvenating Possibility of SBS Copolymers in Asphalt Binders DOI: 10.3390/polym12010092
Masz widmo z tym pasmem?
Prześlij swoje widmo FTIR i uzyskaj pełny raport interpretacji — przypisania pików z cytowaniami literaturowymi, dopasowania biblioteczne oraz łańcuch dowodów z oceną wiarygodności — w kilka sekund.
Interpretuj moje widmo