389 research outputs found
Wilhelm Keim (1934–2018)
No full textWilhelm "Willi" Keim, professor emeritus at the RWTH Aachen University, passed away on September 30, 2018. Keim was best known for his role in developing the Shell higher olefins process (SHOP), and also made pioneering contributions to the areas of liquid-liquid biphasic catalysis, and green and sustainable chemistry
Synthesis and catalytic activity of organometallic complexes of palladium(II) with bis-phosphine monosulfides towards ethylene/CO copolymerization
No full textThe neutral and cationic complexes of formula [(CH3)(Cl)Pd(P∧P(S))] and [(CH3)(CH3CN)Pd(P∧P(S))]BF4 [P∧P(S)=Ph2PCH2P(S)Ph2 (dppmS), Ph2P(CH2)2P(S)Ph2 (dppeS)] have been synthesized, characterized and tested as catalysts in the alternating copolymerization of ethylene and carbon monoxide. Both neutral and cationic Pd(II) complexes show η2-(P,S) coordination and cationic complexes exhibit moderate activity
Determinism and Indeterminism
No full textDeterminism is a rich and varied concept. At an abstract level of analysis, Jordan Howard Sobel (1998) identifies at least ninety varieties of what determinism could be like. When it comes to thinking about what deterministic laws and theories in physical sciences might be like, the situation is much clearer. There is a criterion by which to judge whether a law–expressed as some form of equation–is deterministic. A theory would then be deterministic just in case all its laws taken as a whole were deterministic. In contrast, if a law fails this criterion, then it is indeterministic and any theory whose laws taken as a whole fail this criterion must also be indeterministic. Although it is widely believed that classical physics is deterministic and quantum mechanics is indeterministic, application of this criterion yields some surprises for these standard judgments
Zum Einsatz kationischer Palladium- und Nickelkomplexe mit P N- und P O-Liganden in der Olefinoligomerisierung
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Zur nickelkatalysierten Codimerisierung von Olefinen in ionischen Flüssigkeiten und konventionellen Lösungsmitteln
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