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The preparation of finely divided metal powders and transition metal complexes using “organically solvated” magnesium

1993; Elsevier BV; Volume: 451; Issue: 1-2 Linguagem: Inglês

10.1016/0022-328x(93)83004-f

1872-8561

Helmut Bönnemann, Borislav Bogdanović, Rainer Brinkmann, Bernd Spliethoff, Dawei He,

Chemical Synthesis and Characterization

Treatment of commercial magnesium powder in THF with a small amount of anthracene generates a highly active form of magnesium (Mg★). The Mg★ is an excellent in situ reducing agent for transition metal salts, giving highly reactive metal powders of Groups 8–12. In the presence of electron donor ligands, this reduction provides a useful one-step route to organotransition metal complexes. The application of 35 kHz ultrasound during the reaction improves the dispersity of the metal powders and enhances the yields of the complexes.