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Your search keyword '"Stasch, Andreas"' showing total 22 results
Start Over Author "Stasch, Andreas" Journal angewandte chemie international edition
22 results on '"Stasch, Andreas"'

4. Synthesis, Characterization, and Computational Analysis of the Dialanate Dianion, [H3Al-AlH3]2−: A Valence Isoelectronic Analogue of Ethane.

Author

Bonyhady, Simon J., Holzmann, Nicole, Frenking, Gernot, Stasch, Andreas, and Jones, Cameron

Subjects
BORANES, ALUMINUM, X-rays, MAGNESIUM, HETEROCYCLIC chemistry
Abstract

The first example of a well-defined binary, low-oxidation-state aluminum hydride species that is stable at ambient temperature, namely the dianion in [{(DepNacnac)Mg}2(μ-H)]2[H3Al-AlH3] (DepNacnac=[(DepNCMe)2CH]−, Dep=2,6-diethylphenyl), has been prepared via a magnesium(I) reduction of the alanate complex, (DepNacnac)Mg(μ-H)3AlH(NEt3). An X-ray crystallographic analysis has shown the compound to be a contact ion complex, which computational studies have revealed to be the source of the stability of the aluminum(II) dianion. [ABSTRACT FROM AUTHOR]

Published
2017
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10. Amidinato- and Guanidinato-Cobalt(I) Complexes: Characterization of Exceptionally Short Co-Co Interactions

Author

Jones, Cameron, primary, Schulten, Christian, additional, Rose, Richard P., additional, Stasch, Andreas, additional, Aldridge, Simon, additional, Woodul, William D., additional, Murray, Keith S., additional, Moubaraki, Boujemaa, additional, Brynda, Marcin, additional, La Macchia, Giovanni, additional, and Gagliardi, Laura, additional

Published
2009
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19. Synthesis of a Dimeric Magnesium(I) Compound by an MgI/MgII Redox Reaction.

Author

Stasch, Andreas

Subjects
*DIMERIC ions, *MAGNESIUM compound synthesis, *OXIDATION-reduction reaction, *LIGANDS (Chemistry), *HALIDES, *COMPLEX compounds
Abstract

The synthesis of dimeric magnesium(I) compounds of the general type RMgMgR (R=monoanionic substituent) is still a challenging synthetic task and limited to few examples with sterically demanding ligands with delocalized CN-frameworks that all have been accessed by Na or K metal reduction of magnesium(II) halide precursors. Here we report on the synthesis of a novel diiminophosphinato magnesium(I) compound that has been synthesized by a facile redox reaction using a known magnesium(I) complex. The synthetic strategy may be applicable to other ligand systems and can help expand the class of low oxidation state magnesium complexes even if reductions with Na or K are unsuccessful. The new dimeric magnesium(I) complex has been structurally characterized and undergoes a CC coupling reaction with tert-butylisocyanate. [ABSTRACT FROM AUTHOR]

Published
2014
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20. Well-Defined, Nanometer-Sized LiH Cluster Compounds Stabilized by Pyrazolate Ligands.

Author

Stasch, Andreas

Subjects
*NANOSTRUCTURED materials, *LITHIUM hydride, *HYDROGEN, *PYRAZOLES, *SYNCHROTRON radiation, *HYDROCARBONS
Abstract

The assembly of well-defined large cluster compounds of ionic light metal hydrides is a synthetic challenge and of importance for synthesis, catalysis, and hydrogen storage. The synthesis and characterization of a series of neutral and anionic pyrazolate-stabilized lithium hydride clusters with inorganic cores in the nanometer region is now reported. These complexes were prepared in a bottom-up approach using alkyl lithium and lithium pyrazolate mixtures with silanes in hydrocarbon solutions. Structural characterization using synchrotron radiation revealed isolated cubic clusters that contain up to 37 Li+ cations and 26 H− ions. Substituted pyrazolate ligands were found to occupy all corners and some edges for the anionic positions. [ABSTRACT FROM AUTHOR]

Published
2014
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