Electro-switching of first hyperpolarizability of metallorganic complexes via ligand reduction/oxidation
| Autor: | Puspendu K. Das, C. Karthika, Ashoka G. Samuelson |
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| Rok vydání: | 2021 |
| Předmět: |
Ligand
General Physics and Astronomy Hyperpolarizability 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Redox Light scattering 0104 chemical sciences Metal chemistry.chemical_compound chemistry Atomic orbital visual_art visual_art.visual_art_medium Physical and Theoretical Chemistry Methylene 0210 nano-technology Bimetallic strip |
| Zdroj: | Chemical Physics Letters. 768:138351 |
| ISSN: | 0009-2614 |
| DOI: | 10.1016/j.cplett.2021.138351 |
| Popis: | We report electro-switching of first hyperpolarizability (β) in monometallic (1) and bimetallic (2) Re(I) complexes containing 1,2-bis(pyridine-2-yl methylene)hydrazine (pymh) ligand. Both two- and three-state switching of β have been achieved by one- and two-electron reductions of the pymh ligand using, in situ, second harmonic light scattering (SHLS) from solution. We have shown that pymh reductions lead to an increase in β and this is due to reorganization of the molecular orbital energy levels subsequent to electron injection into the ligand orbitals and appearance of ligand to metal charge transfer (LMCT) bands closer to one and two-photon resonances at experimental wavelength. |
| Databáze: | OpenAIRE |
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