What absorbs at 1403 cm⁻¹ in an FTIR spectrum?
A band near 1403 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
Mahdolliset funktionaalisten ryhmien määritykset
| Funktionaalinen ryhmä | Tukevat tosiasiat | Viitatut lähteet | Korkein luottamus |
|---|---|---|---|
| Carboxyl (COOH) | 2 | 2 | 1,0 |
| Fatty acid | 1 | 1 | 1,0 |
| Hydroxyl (O-H) | 1 | 1 | 1,0 |
| Aromatic ring | 1 | 1 | 1,0 |
| Alkyl C-H | 1 | 0 | 1,0 |
Sijoitus kuvastaa kertyneitä kirjallisuustodisteita, ei yhtä auktoritatiivista sääntöä. Varmista aina suhteessa näytteesi asiayhteyteen.
Näiden määritysten taustalla oleva kirjallisuus
-
Aromatic ring luottamus 1,0
“Moreover, the presence of C-C stretching vibration, C-C tangential vibration and C-H out-of-plane cm-1, cm-1 bending vibration of aromatic rings are determined by the characteristic peaks at 1402.77 1459.57 and cm-1 cm-1”
Tan 等 - 2018 - Synthesis and Characterization of Polybenzoxazine DOI: 10.1063/1.5066866 -
Hydroxyl (O-H) luottamus 1,0
“The wide peaks at 3425 cm-1 cm-1 β-unsaturated ketone, while the peak at 1403 indicated O-H bending of the carboxylic”
The Antifungal Properties of Tamarix aphylla Extract against Some Plant Pathogenic Fungi DOI: 10.3390/microorganisms11010127 -
Carboxyl (COOH) luottamus 1,0
“AmideII,C-Nstretch Proteins COO-stretch,C-Hbend 1456 1446 Lipids COO-stretch,C-Hbend 1403 1386”
ATR-FTIR spectroscopy as adjunct method to the microscopic examination of hematoxylin and eosin-stained tissues in diagnosing lung cancer DOI: 10.1371/journal.pone.0233626 -
Carboxyl (COOH) luottamus 1,0
“After the interaction with NaOL, the antisymmetric stretching peak of -C-H appeared at 2924.71 cm-1 and the peaks that appeared at 1637.26 cm-1 and 1403.19 cm-1 were contributed by the vibration -COO-, indicating that the chemical adsorptio”
Lu 等 - 2020 - Effect of manganese ions addition orders on the fl DOI: 10.37190/ppmp/126421 -
Fatty acid luottamus 1,0
“stretching vibration (COO-) of fatty acids at 1403 and cm-1 (δ) bending vibrations (CH 2) at 1455, 1474, 1477, and 1489 of lipids could be attributed”
Extraction of Reduced Infrared Biomarker Signatures for the Stratification of Patients Affected by Parkinson’s Disease: An Untargeted Metabolomic Approach DOI: 10.3390/chemosensors10060229
Onko sinulla spektri tällä vyöhykkeellä?
Lataa FTIR-spektrisi ja saat täydellisen tulkintaraportin — huippumääritykset kirjallisuusviitteineen, kirjastosumitukset ja luottamusluokitellun todisteketjun — sekunneissa.
Tulkitse spektrini