What absorbs at 3169 cm⁻¹ in an FTIR spectrum?
A band near 3169 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
Ugawaji unaowezekana wa vikundi vya kazi
| Kikundi cha kazi | Ukweli unaounga mkono | Vyanzo vilivyotajwa | Uaminifu wa juu |
|---|---|---|---|
| N h | 2 | 2 | 1.0 |
| Hydroxyl (O-H) | 2 | 2 | 1.0 |
| Secondary amine | 1 | 1 | 1.0 |
| Carbonyl (C=O) | 1 | 1 | 1.0 |
| Amine primary | 1 | 1 | 1.0 |
| Amide | 1 | 1 | 1.0 |
Cheo kinaonyesha ushahidi wa fasihi uliokusanywa, si sheria moja yenye mamlaka. Thibitisha kila mara dhidi ya mazingira ya sampuli yako.
Fasihi nyuma ya ugawaji huu
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Amide uaminifu 1.0
“Peaks at 3169, 3320, and andasymmetric-CH3 stretchesandthebroadpeaksat30943410cm-1 secondary amide N-H stretches as well as primary amine Ndue to the presence of the secondary amide/NHstretches,andthestrongpeakat1568cm-1 ischaracteristic H”
Alexander 等 - 2016 - Carboxylation and Decarboxylation of Aluminum Oxid DOI: 10.1155/2016/7950876 -
Hydroxyl (O-H) uaminifu 1.0
“explicit assignment in text”
James 等 - 2022 - Synthesis and Characterization of Novel Nano-carbo DOI: 10.15376/biores.17.3.4452-4469 -
Carbonyl (C=O) uaminifu 1.0
“Moreover, cm(cid:3)1 O-H 1 shows the stretching vibration peak at 3169 assothe theoretical spectrum also reveals the carbonyl peak at ciated with the presence of hydroquinone, while the peak cm(cid:3)1.”
A comparison of experimental and theoretical studies of benzoquinone modified poly(thiophene): effect of polymerization techniques on the structure and properties DOI: 10.1039/d0ra07714c -
N h uaminifu 1.0
“The peaks at 3169 and 1401 were identi ed as NH stretching and -P=O(O-NH 4+) scissoring vibration, which belonged to the unreacted groups on CADP-cotton.”
Xu 等 - 2022 - Durable and high-efficiency casein-derived phospho DOI: 10.21203/rs.3.rs-884727/v1
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Pakia wigo wako wa FTIR na upate ripoti kamili ya tafsiri — ugawaji wa vilele na marejeleo ya fasihi, ulinganishaji wa maktaba, na mlolongo wa ushahidi wenye kiwango cha uaminifu — kwa sekunde.
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