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991.
The lithium salt of the weakly coordinating alkoxyaluminate anion Li[Al(OC(CF3)2(CH2SiMe3))4] ( 2 ) is soluble in polar and even in non‐polar solvents. Especially the solubility in n‐hexane confirms 2 to be an excellent candidate for Li ion catalysis. Its polymeric structure consists of a seven coordinated Li+ cation, coordinating a [Al(OC(CF3)2(CH2SiMe3)]? anion that serves as hexadentate O2F4 ligand and a further bridging F atom of a second anion. Compound 2 reacts with ClCPh3 giving the [CPh3]+ salt which is at least stable in CD2Cl2 over days at 298 K, but decomposes after storage at 333 K for several days. 相似文献
992.
993.
This paper presents analytical results for higher moments of characteristics of a Voronoi tessellation generated by a homogeneous
Poisson point process in the three-dimensional Euclidean space. The second moment of the volume of the typical cell as well
as higher moments for the edge length distribution and the linear contact distribution are given. These characteristics are
calculated analytically and presented in a unified form. 相似文献
994.
Clemens K. Blasius Dr. Vladislav Vasilenko Regina Matveeva Prof. Hubert Wadepohl Prof. Lutz H. Gade 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2020,132(51):23210-23214
Cobalt(II) alkyl complexes supported by a monoanionic NNN pincer ligand are pre-catalysts for the regioselective hydroboration of terminal alkynes, yielding the Markovnikov products with α:β-(E) ratios of up to 97:3. A cobalt(II) hydride and a cobalt(II) vinyl complex appear to determine the main reaction pathway. In a background reaction the highly reactive hydrido species specifically converts to a coordinatively unsaturated cobalt(I) complex which was found to re-enter the main catalytic cycle. 相似文献
995.
Dr. Qingqing Bu Dr. Rositha Kuniyil Zhigao Shen Dr. Elżbieta Gońka Prof. Dr. Lutz Ackermann 《Chemistry (Weinheim an der Bergstrasse, Germany)》2020,26(69):16450-16454
C−H hydroxylation of aryl acetamides and alkyl phenylacetyl esters was accomplished via challenging distal weak O-coordination by versatile ruthenium(II/IV) catalysis. The ruthenium(II)-catalyzed C−H oxygenation of aryl acetamides proceeded through C−H activation, ruthenium(II/IV) oxidation and reductive elimination, thus providing step-economical access to valuable phenols. The p-cymene-ruthenium(II/IV) manifold was established by detailed experimental and DFT-computational studies. 相似文献
996.
997.
In stochastic partial differential equations it is important to have pathwise regularity properties of stochastic convolutions.
In this note we present a new sufficient condition for the pathwise continuity of stochastic convolutions in Banach spaces. 相似文献
998.
999.
Nonlinear Dynamics - For nonlinear time-delay systems, domains of attraction are rarely studied despite their importance for technological applications. The present paper provides methodological... 相似文献
1000.
S. Metzl und O. Lutz 《Fresenius' Journal of Analytical Chemistry》1908,47(6-7):415-416
Ohne Zusammenfassung 相似文献