Synthesis and structural peculiarities of gallium Complexes with novel paullone derivatives

Werner Ginzinger 1 , Vladimir Arion 1 , Gerald Giester 2 , Markus Galanski 1 ,  and Bernhard Keppler 1
  • 1 Institute of Inorganic Chemistry, University of Vienna, A-1090, Vienna, Austria
  • 2 Institute of Mineralogy and Crystallography, University of Vienna, A-1090, Vienna, Austria


9-Bromo-7,12-dihydroindolo[3,2-d][1]benzazepin-6-ylhydrazine was reacted with 2-acetylpyridine to give a Schiff base as a potential tridentate ligand. The reaction of this ligand with gallium chloride afforded complexes of 1:1 and 2:1 stoichiometry. The results of X-ray diffraction studies of the ligand and both gallium complexes are reported and compared with the data for a related gallium complex with a Schiff base obtained from 9-bromo-7,12-dihydroindolo[3,2-d][1]benzazepin-6-ylhydrazine and 2-hydroxybenzaldehyde.

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