What absorbs at 978 cm⁻¹ in an FTIR spectrum?
A band near 978 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 6 cited sources
Iespējamie funkcionālo grupu piešķīrumi
| Funkcionālā grupa | Atbalstošie fakti | Citētie avoti | Augstākā pārliecība |
|---|---|---|---|
| Aromatic ring | 1 | 1 | 1,0 |
| Silicon hydride | 1 | 1 | 1,0 |
| Amide | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Borate | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 1 | 1,0 |
Rangs atspoguļo uzkrātos literatūras pierādījumus, nevis vienu autoritatīvu noteikumu. Vienmēr apstipriniet atbilstoši parauga kontekstam.
Literatūra aiz šiem piešķīrumiem
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Alkyl C-H pārliecība 1,0
“related to the PLLA crystal [19], the crystalline band It shows decreasing of the glass transition temperatures cm-1 at 978 is given to bending vibrations of -C-H (Tg)inthePLLA,PDLLAandPHBblendswithanadditive.”
El-Hadi - 2019 - Miscibility of CrystallineAmorphousCrystalline B DOI: 10.1080/03602559.2018.1455863 -
Borate pārliecība 1,0
“2) could 4(cid:2) unit-related B-O stretching correspond to BO 978-cm(cid:2)1 IR band indicates the vibrations.”
Lakshminarayana 等 - 2019 - Borotellurite Glasses for Gamma-Ray Shielding An DOI: 10.1007/s11664-018-6810-8 -
Hydroxyl (O-H) pārliecība 1,0
“cm-1 amide I and II may be substituted at 1643.1 The peak at 978.3 is associated with alcohol and amine stretching vibrations.”
Synthesis and Characterization of Sulfur Nanoparticles of Citrus limon Extract Embedded in Nanohydrogel Formulation: In Vitro and In Vivo Studies DOI: 10.3390/gels9040284 -
Amide pārliecība 1,0
“of the protein β-sheet (978 cm-1), and the band of Amide III (centered at 1255 cm-1).”
The Role of the Preanalytical Step for Human Saliva Analysis via Vibrational Spectroscopy DOI: 10.3390/metabo13030393 -
Silicon hydride pārliecība 1,0
“In the curve of paring curves b and c, it could be found that the cm-1 824 belonged to the symmetric deformation vibration of the four-membered ring in appeared in the infrared spectrum of the prepolymer appeared, which further proved that”
Chen 等 - 2021 - Synthesis of a novel UV-curable prepolymer 1,3-bis DOI: 10.2478/msp-2021-0030 -
Aromatic ring pārliecība 1,0
“1165 other scissoring mode vibrations were assigned at 1172, 1118, and 1093 cm-1 The C-H out-of-plane bending (twisting vibrations) was observed at 978 and calcm-1, culated at 984 a series of twisting vibrations bands were found at 970, 940”
Density Functional Theory and Molecular Docking Investigations of the Chemical and Antibacterial Activities for 1-(4-Hydroxyphenyl)-3-phenylprop-2-en-1-one DOI: 10.3390/molecules26123631
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