What absorbs at 3638 cm⁻¹ in an FTIR spectrum?
A band near 3638 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 4 cited sources
Penetapan kumpulan berfungsi yang mungkin
| Kumpulan berfungsi | Fakta sokongan | Sumber dipetik | Keyakinan tertinggi |
|---|---|---|---|
| Hydroxyl (O-H) | 4 | 4 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
Pemeringkatan mencerminkan bukti literatur terkumpul, bukan satu peraturan berwibawa. Sentiasa sahkan terhadap konteks sampel anda.
Literatur di sebalik penetapan ini
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Hydroxyl (O-H) keyakinan 1.0
“TGA2950.Theheatingratewas20◦C/minundernitrogencondition 3638cm-1 The sharp strong vibration band at is due to OH with an initial sample weight of 11-15mg.”
Li 等 - 2008 - An FTIR investigation of hexadecyltrimethylammoniu DOI: 10.1016/j.saa.2008.05.015 -
Hydroxyl (O-H) keyakinan 1.0
“Addition of the first doses of CO to all the three studied samples in the cell, preliminary cooled with liquid nitrogen (Figure 3), results in the intensity decrease of the OH band at 3638 with cm-1 12CO simultaneous growth of the band of p”
Belykh 等 - 2019 - Deep insight into CO adsorption on Ni-USY zeolite DOI: 10.1016/j.apcata.2019.117140 -
Hydroxyl (O-H) keyakinan 1.0
“The primary OH band of 3638cm-1, them where the baseline was free of absorption bands, using MCT muscovite at measured in polarized IR rawww.solid-earth.net/8/1025/2017/ Solid Earth, 8, 1025-1045, 2017”
Kronenberg 等 - 2017 - Synchrotron FTIR imaging of OH in quartz mylonites DOI: 10.5194/se-8-1025-2017 -
Hydroxyl (O-H) keyakinan 1.0
“In h o cm-1 the B550 biochar spectrum, two distinct bands at 3638 and 3055 were observed.”
Singh 等 - 2016 - A Fourier-Transform Infrared Study of Biochar Agin DOI: 10.2136/sssaj2015.11.0414.
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