Toward Matching Optically and NMR Active Volumes for Optimizing the Observation of Photo-Induced Reactions by NMR
| Autor: | Dmytro Neshchadin, Anna Eibel, Eduard Stadler, Georg Gescheidt |
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| Rok vydání: | 2016 |
| Předmět: |
Matching (statistics)
Crystallography Materials science CIDNP Transverse relaxation-optimized spectroscopy 02 engineering and technology Physical and Theoretical Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 0210 nano-technology Photochemistry 01 natural sciences 0104 chemical sciences |
| Zdroj: | Zeitschrift für Physikalische Chemie. 231:625-636 |
| ISSN: | 2196-7156 0942-9352 |
| DOI: | 10.1515/zpch-2016-0854 |
| Popis: | In the recent years photo-induced reactions are becoming increasingly popular in many fields of chemistry comprising biological conversions, material/environmental science and synthesis. NMR monitoring of such reactions has been shown being advantageous and several strategies of providing an efficient irradiation of the NMR sample have been developed and reported. Here we show that adjusting the optical properties of the investigated solution to the active volume detected by the NMR experiment is valuable. This is shown with the help of three examples comprising photo-isomerization, photo-induced polymerization and CIDNP-detected bond cleavage. Adjusting the photo-active volume to the NMR-detectable portion of the sample provides a substantially more realistic kinetic information, background suppression and reduction of thermal and diffusional effects. |
| Databáze: | OpenAIRE |
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