Matrix isolation infrared study of the interaction of dioxygen with chromium(II)tetraphenylporphyrin
| Autor: | T.S. Kurtikyan, Alexei V. Iretskii, G.G. Martirosyan, Gohar Sh. Hovhannisyan |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Argon
010405 organic chemistry Chemistry Infrared Matrix isolation Infrared spectroscopy chemistry.chemical_element 010402 general chemistry 01 natural sciences 0104 chemical sciences Adduct Inorganic Chemistry chemistry.chemical_compound Chromium Tetraphenylporphyrin Materials Chemistry Physical chemistry Molecular oxygen Physical and Theoretical Chemistry |
| Zdroj: | Inorganica Chimica Acta. 524:120439 |
| ISSN: | 0020-1693 |
| DOI: | 10.1016/j.ica.2021.120439 |
| Popis: | The infrared spectra of Cr(II)(TPP) (TPP is meso-tetraphenylporphyrinato dianion) and its adduct with molecular oxygen have been recorded in argon matrices at 10 K, as well as in thin sublimated films. Formation of the Cr(TPP)(O2) adduct have been confirmed using 16O2 and 18O2. The ν(O2) stretching bands are located at 1146 and 1082 cm−1, respectively. These and literature data together with the results of our DFT calculations, are consistent with the end-on dioxygen binding mode in the Cr(III)(TPP)(O2–) superoxo complex. |
| Databáze: | OpenAIRE |
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