What absorbs at 716 cm⁻¹ in an FTIR spectrum?
A band near 716 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 8 cited sources
Possíveis atribuições de grupos funcionais
| Grupo funcional | Fatos de suporte | Fontes citadas | Maior confiança |
|---|---|---|---|
| Hydroxyl (O-H) | 3 | 3 | 1,0 |
| Alkyl C-H | 3 | 3 | 1,0 |
| Silicon-oxygen (Si-O) | 2 | 2 | 1,0 |
| Metal oxygen | 2 | 2 | 1,0 |
| Methacrylate | 2 | 2 | 1,0 |
| Acetate | 2 | 2 | 1,0 |
| Siloxane (Si-O-Si) | 1 | 1 | 1,0 |
| Silicon (Si) | 1 | 1 | 1,0 |
| Methoxy (OCH3) | 1 | 1 | 1,0 |
| C-O single bond | 1 | 1 | 1,0 |
| Ketone | 1 | 1 | 1,0 |
| Ester | 1 | 1 | 1,0 |
| Carboxyl (COOH) | 1 | 1 | 1,0 |
| Carbonyl (C=O) | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Alkene (C=C) | 1 | 1 | 0,9 |
A classificação reflete a evidência acumulada da literatura, não uma única regra autoritária. Sempre confirme com o contexto da sua amostra.
Literatura por trás destas atribuições
-
Acetate confiança 1,0
“In addition, the band located at 716 cm-1 was ascribed to the weak stretching of C=O, while 1144 cm-1 corresponded to the stretching asymmetric vibration of CN.”
Can 等 - 2023 - Choline Chloride-Based Deep Eutectic Solvent-Treat DOI: 10.3390/f14030569 -
Hydroxyl (O-H) confiança 1,0
“(b) Integral absorbance of 50mm), Fig.4.SequenceofIRspectraofcoesiteMA091(thickness asafunctionoftemperature,downto-180(cid:2)C.Thespectraareoffset the OH stretching bands of coesite FD0716 taken on a (010) plate as oftheorientationoftheEve”
Deon 等 - 2009 - Coupled boron and hydrogen incorporation in coesit DOI: 10.1127/0935-1221/2009/0021-1843 -
Alkyl C-H confiança 1,0
“stretching vibration of ring (768.45 vibration of CH (716.15 and 2 cm-1) bending vibration rings of C-H groups in phenolic compounds (628.80 (Silverstein & Bassler,”
Encapsulation of olive leaf phenolics within electrosprayed whey protein nanoparticles; production and characterization DOI: 10.1016/j.foodhyd.2019.105572 -
confiança 1,0
“También es posible observar bandas de un 2533, 1808, 1446, 870, and 716 cm-1, although bands from an compuesto de silicio no cristalino a 1110 (Si-O) y 924 cm-1 (C-O) organic molecule at 2945, 2889 (C-H), and 1034 cm-1 can be seen in and (S”
Fragoso 等 - 2010 - Characterization of the CaCO3 biomineral in corall DOI: 10.7773/cm.v36i1.1606 -
Alkyl C-H confiança 1,0
“cm-1, 2912 cm-1 and 2849 cm-1, corresponding to the alkyl C-H to the paraffin: at 2954 cm-1, cm-1 cm-1, belonging to the paraffin: at 2954 2912 and 2849 corresponding to the bonding vibrations, and at 1472 cm-1 and 716 cm-1 the deformation”
Study of Melamine-Formaldehyde/Phase Change Material Microcapsules for the Preparation of Polymer Films by Extrusion DOI: 10.3390/membranes12030266 -
confiança 1,0
“The peak at 716 cm-1 is attributed to the stretching corresponds to the Zn-O [26,28,29].”
Deposition of Zinc Oxide Coatings on Wood Surfaces Using the Solution Precursor Plasma Spraying Process DOI: 10.3390/coatings11020183 -
Alkyl C-H confiança 1,0
“LLM confirmed rule peak-group candidate”
Kallakas 等 - 2023 - Tensile and Surface Wettability Properties of the DOI: 10.3390/polym15122677 -
Metal oxygen confiança 1,0
“The sharp peak at 1531 metal oxide nanoparticles was found, and its bandwidth was 716.17 cm-1 demonstrates that the C=O molecule is vibrating symmetrically.”
Viswaksenan 等 - 2023 - Structural, morphological, and optical properties DOI: 10.15251/JOR.2023.194.351
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