Detection of Copper Bisguanidine NO Adducts by UV-vis Spectroscopy and a SuperFocus Mixer
| Autor: | Fabian Etscheidt, Roland Dittmeyer, Daniela Schurr, Florian Strassl, Sonja Herres-Pawlis, Larissa Laurini, Alexander Oppermann, Alexander Hoffmann, Katharina Hollmann, Günter Rinke |
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| Rok vydání: | 2017 |
| Předmět: |
010405 organic chemistry
Chemistry General Chemical Engineering Analytical chemistry chemistry.chemical_element General Chemistry 010402 general chemistry 01 natural sciences Copper Industrial and Manufacturing Engineering 0104 chemical sciences Adduct law.invention Delocalized electron Ultraviolet visible spectroscopy law Spectroscopy Saturation (chemistry) Absorption (electromagnetic radiation) Electron paramagnetic resonance |
| Zdroj: | Chemical Engineering & Technology. 40:1475-1483 |
| ISSN: | 0930-7516 |
| DOI: | 10.1002/ceat.201600691 |
| Popis: | The reaction of Cu(I) bisguanidine complexes with nitric oxide and the formation of intermediate species is monitored via UV/Vis spectroscopy at low temperature with the occurrence of characteristic absorption bands. The origin of the emerging species and their character is substantiated by EPR measurements and DFT studies showing a delocalized {CuNO}11 radical species. Furthermore, this system is transferred to the SuperFocus mixer setup which allows a rapid mixing and the determination of decay constants at ambient temperatures of the thermally sensitive species. However, these experiments demonstrate the limits of these systems such as the NO saturation in organic solvents and a preferably precise temperature control within the SFM which should be addressed next. |
| Databáze: | OpenAIRE |
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