Identification of peroxo groups in supramolecular layered structures as probed by Raman spectroscopy
| Autor: | Petr V. Prikhodchenko, Tatiana A. Tripol’skaya, N. A. Chumaevskii, G. P. Pilipenko, E. A. Legurova, I. V. Pokhabova |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Materials Science (miscellaneous)
Inorganic chemistry Supramolecular chemistry Layered double hydroxides chemistry.chemical_element engineering.material Spectral line Inorganic Chemistry Crystallography symbols.namesake chemistry.chemical_compound chemistry Group (periodic table) Aluminium symbols engineering Lithium Physical and Theoretical Chemistry Raman spectroscopy Hydrogen peroxide |
| Zdroj: | Russian Journal of Inorganic Chemistry. 54:464-466 |
| ISSN: | 1531-8613 0036-0236 |
| DOI: | 10.1134/s0036023609030218 |
| Popis: | Peroxide-containing supramolecular structures prepared by reacting lithium aluminum layered double hydroxides (Li-Al LDHs) with concentrated hydrogen peroxide solutions were characterized by Raman spectroscopy. These compounds were formulated as [LiAl2(OH)6](OH) · H2O2 · H2O(I) and [LiAl2(OH)6](OOH) · H2O2 · H2O(II). The frequencies 830 and 849 cm−1 in the spectra of compounds I and II were assigned to O—C stretching vibrations in two nonequivalent peroxo groups. The band at 866 cm−1 in compound II was assigned to O—O vibrations in the hydroperoxo group (OOH)−. Proceeding from calculated strength factors, we inferred that the O—O bond in the hydroperoxo group of compound II is stronger than in the H2O2 solvating group. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink