Exploring the Subtle Effect of Aliphatic Ring Size on Minor Actinide‐Extraction Properties and Metal Ion Speciation in Bis‐1,2,4‐Triazine Ligands
作者:Andrey V. Zaytsev、Rachel Bulmer、Valery N. Kozhevnikov、Mark Sims、Giuseppe Modolo、Andreas Wilden、Paul G. Waddell、Andreas Geist、Petra J. Panak、Patrik Wessling、Frank W. Lewis
DOI:10.1002/chem.201903685
日期:2020.1.7
the two classes of ligand, with a lower percentage of the extracted 1:2complexes being formed for ligands 8 and 10. The structures of the solid state 1:1 and 1:2complexes formed by 8 and 10 with YIII, LuIII and PrIII are very similar to those formed by 2 and 3 with LnIII. Ligand 10 forms CmIII and EuIII 1:2complexes that are thermodynamically less stable than those formed by ligand 3, suggesting that
Transfer hydrogenation of ketones catalyzed by 2,6‐bis(triazinyl)pyridine ruthenium complexes: The influence of alkyl arms
作者:Liandi Wang、Tingting Liu
DOI:10.1016/j.tetlet.2019.150993
日期:2019.9
The transfer hydrogenation of ketones catalyzed by transition metal complexes has attracted much attention. A series of ruthenium(II) complexes bearing 2,6-bis(5,6-dialkyl-1,2,4-triazin-3-yl)pyridine ligands (R-BTPs) were synthesized and characterized by NMR analysis and X-ray diffraction. These ruthenium(II) complexes were applied in the transfer hydrogenation of ketones. Their different catalytic activity
Scanning-Tunneling-Spectroscopy-Directed Design of Tailored Deep-Blue Emitters
作者:Jan Sanning、Pascal R. Ewen、Linda Stegemann、Judith Schmidt、Constantin G. Daniliuc、Tobias Koch、Nikos L. Doltsinis、Daniel Wegner、Cristian A. Strassert
DOI:10.1002/anie.201407439
日期:2015.1.12
moieties enables independent tuning of the frontier orbital energies, and the measured HOMO–LUMO gaps are reproduced by DFT calculations. The energy gaps correlate with the measured and the calculated energies of the emissive triplet states and the experimental luminescence wavelengths. This synergetic interplay between synthesis, microscopy, and spectroscopy enabled the design and realization of a deep‐blue
cases. The difference between the catalyticactivity of 5 and 1 is attributed to the significantly different arrangement and positions of the PPh3 and chlorides and also to the different electron density on the N-heterocycles. Complex 1 exhibited good to excellent catalyticactivity in hydrogenation of ketones under mild conditions. These results have suggested new applications of iBu-BTP and Me4BPPy
Efficient Preparation of Pyridinyl-1,2,4-Triazines via Telescoped Condensation with Diversely Functionalized 1,2-Dicarbonyls
作者:Serene Tai、Sydney V. Marchi、Jesse D. Carrick
DOI:10.1002/jhet.2374
日期:2016.7
useful 3‐pyridin‐2‐yl‐1,2,4‐triazines (2 novel) is demonstrated viatelescopedcondensation with the requisite 1,2‐dicarbonyl in two‐pots without additives, differentially extractive work‐up procedures, or recrystallization. Additional efforts in this area have demonstrated the utility of polar aprotic solvents for the preparation of nine functionalized pyridinyl‐2,6‐bis‐1,2,4‐triazines (4 novel) directly