What absorbs at 821 cm⁻¹ in an FTIR spectrum?
A band near 821 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 5 cited sources
Ugawaji unaowezekana wa vikundi vya kazi
| Kikundi cha kazi | Ukweli unaounga mkono | Vyanzo vilivyotajwa | Uaminifu wa juu |
|---|---|---|---|
| Carbohydrate | 1 | 1 | 1.0 |
| Hydroxyl (O-H) | 1 | 1 | 1.0 |
| C-O single bond | 1 | 1 | 1.0 |
| Alkyl C-H | 1 | 1 | 1.0 |
| Aromatic ring | 1 | 1 | 1.0 |
| Alkene (C=C) | 1 | 0 | 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
-
Aromatic ring uaminifu 1.0
“The band at 821 shows aromatic compounds [16].”
Enhanced Pharmaceutically Active Compounds Productivity from Streptomyces SUK 25: Optimization, Characterization, Mechanism and Techno-Economic Analysis DOI: 10.3390/molecules26092510 -
Alkyl C-H uaminifu 1.0
“C-H rocking of PVA is attributed to the band at 821 [34].”
Innovative Green Chemistry Approach to Synthesis of Sn2+-Metal Complex and Design of Polymer Composites with Small Optical Band Gaps DOI: 10.3390/molecules27061965 -
C-O single bond uaminifu 1.0
“The present peak at 1025 indicates the asymmetric stretching of the C-O-C The peak cm-1 cm-1 821 was due to the bending vibration of C=C and the peak 604 pertained to the stretching vibration of Ni-O, Fe-O, and Co-O in the tetrahedral or oc”
Production of Ni0.5Co0.5Fe2O4/activated carbon@chitosan magnetic nanobiocomposite as a novel adsorbent of methylene blue in aqueous solutions DOI: 10.1038/s41598-023-33470-y -
Hydroxyl (O-H) uaminifu 1.0
“In particular, the peak at 2970 is assigned to C-H cm(cid:0) cm(cid:0) 1, 1 generally attributed to the intermolecular O-H are associated with aroand the peaks appearing at 821 and 721 peak at 3450”
Binational survey of personal protective equipment (PPE) pollution driven by the COVID-19 pandemic in coastal environments: Abundance, distribution, and analytical characterization DOI: 10.1016/j.jhazmat.2021.128070 -
Carbohydrate uaminifu 1.0
“Induction of N type Phosphate asymmetric and symmetric stretching bands sugar conformation is evident by increase in the intensity of bands cm21 cm21 (1224 and 1086 respectively) and sugar stretching cm21 cm1 and 821 in the complexes (Figur”
Jangir 等 - 2013 - Role of Minor Groove Width and Hydration Pattern o DOI: 10.1371/journal.pone.0069933
Una wigo wenye bendi hii?
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.
Tafsiri wigo wangu