What absorbs at 3611 cm⁻¹ in an FTIR spectrum?

빠른 답변

A band near 3611 cm⁻¹ is usually interpreted by checking which functional groups repeatedly co-occur there in the literature, then confirming at least one or two additional peaks in the same sample. This page ranks those assignments by accumulated evidence rather than by a single fixed textbook rule.

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스펙트럼 로직

This band becomes meaningful only when read with its neighboring peaks. In practice, analysts first look at the assignments above, then check whether the same sample also shows other peaks expected for the same structural motif. A lone band near 3611 cm⁻¹ is usually not enough for material identification by itself.

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이 할당의 배경이 되는 문헌

• 신뢰도 1.0

  “A sharp peak at ~3611 in FTIR spectra broadens on interaction 2 with H , due to combination of Hydrogen with adjacent Oxygen forming OH moiety within the CeO 2 lattice.”

  Oxygen vacancies and F+ centre tailored room temperature ferromagnetic properties of CeO2 nanoparticles with Pr doping concentrations and annealing in hydrogen environment DOI: 10.1016/j.jallcom.2020.156079
• Hydroxyl (O-H) 신뢰도 1.0

  “respectively.[19] anti-symmetric vibration modes of CH 2, The cm-1 peak at 3611 can be assigned to the vibration of free OH The average water contents in chalcedony, agate, and zultanite stretching.[20,21]”

  Parali 等 - 2015 - Dielectric behaviors at microwave frequencies and DOI: 10.1088/1674-1056/24/5/059101
• Hydroxyl (O-H) 신뢰도 1.0

  “In this study, DFBG0 film showed a robust and sharp band at group was then recognized as OH stretching, which was contribcm-1 3610.74 attributed to alcohol OH stretching in the films uted by the anthocyanin in the films.”

  Fabrication and characterization of a pH-sensitive intelligent film incorporating dragon fruit skin extract DOI: 10.1002/fsn3.2680
• Hydroxyl (O-H) 신뢰도 1.0

  “3611 is attributed to the stretching mode of hydroxyls coordinated with the magnesium in Adsorption capacities of composite hydrogels with cm-1 cm-1 attapulgite.”

  Chen 和 Hong - 2022 - Preparation of Chitin Composite Hydrogel for Dye-C DOI: 10.15244/pjoes/138210
• Hydroxyl (O-H) 신뢰도 1.0

  “The broad band at 3611 in the HP-HZSM-5 O-H spectrum, is assigned to stretching mode of Brønsted”

  Hybrid catalysts based on N-heterocyclic carbene anchored on hierarchical zeolites DOI: 10.1039/c9ra07516j
• Hydroxyl (O-H) 신뢰도 1.0

  “OHbonds 3506cm-1 OHstretching(free) StretchingO-H 3524/28/42cm-1 StretchingO-H 3570/77/78/82/90/9cm-1 O-H&N-Hstretchingvibrations 3611cm-1”

  Phytochemical screening, polyphenols, flavonoids and tannin content, antioxidant activities and FTIR characterization of Marrubium vulgare L. from 2 different localities of Northeast of Morocco DOI: 10.1016/j.heliyon.2020.e05609
• 신뢰도 1.0

  “1913, 2086 bands of second order 2218, 2248, 2334, 2389, 2441, 2489, 2709, 2845, 2882, 2952 Stretch C-H, N-H 3611, 3436, 3659, 3748, 3927 Stretch N-H asym and O-H asym Table 2.”

  A simple and fast spectroscopy-based technique for Covid-19 diagnosis DOI: 10.1038/s41598-021-95568-5
• Silicon (Si) 신뢰도 1.0

  “At 3611 bands due to bridged Si(OH)Al sample and the mesoporous zeolites is the complete cm-1 hydroxyls that are responsible for the Brønsted (BAS) suppression of the broadband at 3460 after the alkali acidity of the zeolites appear.”

  Mesa 等 - 2021 - Optimization and Study of the Response Surface of DOI: 10.21577/0103-5053.20210020