PUB - Publikationen an der Universität Bielefeld

The syntheses of dibutylaluminium and -gallium iodide via metathesis reactions of the respective chlorides with lithium iodide are reported. The compounds were identified by elemental analyses, multinuclear NMR spectroscopy (H-1, C-13, Al-27) and mass spectra (EI). The structures obtained by single crystal X-ray diffraction reveal that the new compound (Bu2AlI)-Bu-t crystallizes in the monoclinic crystal system, space group P2(1)/n, as a dimer with a planar Al2I2 four-membered ring. The crystal structure of the monoclinic structure of (Bu2GaI)-Bu-t was redetermined. Its mass spectra reveal the existence of trimers and dimers in addition to the predominant monomeric species in gas phase.