Mechanochemically Driven Transformations in Organotin Chemistry: Stereochemical Rearrangement, Redox Behavior, and Dispersion-Stabilized Complexes
Ball milling a mixture of the bulky allyl K[A′] {[A′] = [1,3-(SiMe3)2C3H3]−} and SnCl2 in a 2:1 ratio for 5 min leads to the tris(allyl) stannate [SnA′3K]∞, which forms a coordination polymer in the solid state. Longer grinding of the 2:1 mixture (15 min), or the use of a 3:1 ratio of reagents, in...
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Veröffentlicht in: | Journal of the American Chemical Society 2018-11, Vol.140 (46), p.15934-15942 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Ball milling a mixture of the bulky allyl K[A′] {[A′] = [1,3-(SiMe3)2C3H3]−} and SnCl2 in a 2:1 ratio for 5 min leads to the tris(allyl) stannate [SnA′3K]∞, which forms a coordination polymer in the solid state. Longer grinding of the 2:1 mixture (15 min), or the use of a 3:1 ratio of reagents, initiates a disproportionation reaction and the chiral tetra(allyl)tin species [SnA′4] is produced. A small amount of a diastereomeric [SnA′4] complex with meso symmetry can also be isolated with extended grinding. These products have been structurally authenticated with single-crystal X-ray crystallography. The tetra(allyl) species [SnA′4] are sterically crowded and decompose relatively quickly ( |
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ISSN: | 0002-7863 1520-5126 |
DOI: | 10.1021/jacs.8b09862 |