What absorbs at 3210 cm⁻¹ in an FTIR spectrum?
A band near 3210 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 6 cited sources
Atribuiri posibile ale grupelor funcționale
| Grup funcțional | Fapte suport | Surse citate | Încredere maximă |
|---|---|---|---|
| N h | 3 | 3 | 1,0 |
| Hydroxyl (O-H) | 2 | 2 | 1,0 |
| Water (H2O) | 1 | 1 | 1,0 |
| Hydrogen bond | 1 | 1 | 1,0 |
Clasamentul reflectă dovezile acumulate din literatură, nu o singură regulă autoritară. Confirmați întotdeauna în contextul mostrei dvs.
Literatura din spatele acestor atribuiri
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încredere 1,0
“The primary N-H bonds peaking at 3210”
Miyazaki 等 - 2005 - Properties of radio-frequency-sputter-deposited Ga DOI: 10.1063/1.1888027g -
Hydroxyl (O-H) încredere 1,0
“The absorption at ~3210 assigned to wagging vibrations hydrogen-bonded hydroxyl group vibrations (poly -OH1).”
Influences of Ash-Existing Environments and Coal Structures on CO2 Gasification Characteristics of Tri-High Coal DOI: 10.3390/pr8111367 -
Water (H2O) încredere 1,0
“However, after eight months (Figure 5b), the mixtures with 5 and 10% of water showed new peaks (3346 and 3208 cm-1, and 3344 and 3210 cm-1, respectively) in the OH region, probably due to the crystallization Molecules2022,27,8310”
Elaboration and Characterization of Natural Deep Eutectic Solvents (NADESs): Application in the Extraction of Phenolic Compounds from pitaya DOI: 10.3390/molecules27238310 -
încredere 1,0
“Spectral Characteristics of Inorganic Ions in Aerosols PM N-H bond absorbance bands at approximately 3210 and samples were collected on filters, then analyzed”
Wei 等 - 2019 - Aerosol Pollution Characterization before Chinese DOI: 10.4209/aaqr.2018.06.0226 -
Hydroxyl (O-H) încredere 1,0
“height in horizontal/vertical direction of the infrared polar3210, and 3060 These bands are ascribed to intrinsic izer, indicating that this material is homogenous in both its OH in aluminous orthopyroxene (Beran and Zemann 1986;”
Water contents of nominally anhydrous orthopyroxenes from oceanic peridotites determined by SIMS and FTIR DOI: 10.1007/s00710-021-00757-9 -
încredere 1,0
“Compared with the spectra of the reaction monomers MAA and DOPA, in the FTIR spectra of L-DMA, the absorption peaks of methacrylic anhydride in MAA at 1787 and cm-1 cm-1, 1725 had obviously disappeared and changed into a single peak of C=O”
Bionic Synthesis of Mussel-like Adhesive L-DMA and Its Effects on Asphalt Properties DOI: 10.3390/ma15155351
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