Inorganics, Volume 8, Issue 3
2020 March - 6 articles
Cover Story: A series of [Re(N^N)(CO)3(Cl)] (N^N = diimine) complexes based on 4-(pyrid-2-yl)-1,2,3-triazole (1), 1-benzyl-4-(pyrimidin-2-yl)-1,2,3-triazole (2), and 1-benzyl-4-(pyrazin-2-yl)-1,2,3-triazole (3) diimine ligands were prepared and fully characterised. The results show that the reduction wave is highly sensitive to the nature of the triazole-based ligand, with the peak potential shifting toward a more positive potential in the order of 1–3. All three complexes are phosphorescent in solution at room temperature, with λmax ranging from 540 nm (1) to 638 nm (3). Interestingly, the complexes appear to show inverted energy-gap law behaviour (τ = 43 ns for 1 versus 92 ns for 3). Complexes 1 and 2 show a modest ability to catalyse the electroreduction of CO2 i
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