Preparation and Structure of Cyclic Gallium(III) and Gallium(II) 2-Amino-ethyl-amides
نویسندگان
چکیده
Z. Naturforsch. 56 b, 458^462 (2001); received April 4, 2001 Gallium(III) and Gallium(II) Amides, Gallium Amino Complexes, Gallium Coordination The reaction of /V,/V-di('butyl)-ethane1,2-diamine with NaH followed by anhydrous GaCl3 (molar ratios 1:2 :1) gives mainly an insoluble bis(diamido)gallium chloride together with a low yield (28%) of a soluble monocyclic dichlorogallium-[2-('butylamino)-ethyl-('butyl)amide], ChGaCBuNH-CHaCHi-N'Bu) 1, the structure of which has been determined. Metallation of the same diamine with 'butyl-lithium and GaCb (1:2:1) gave small quantities of the corresponding dinuclear, bicyclic gallium(II) compound 2, [('BuNH-CH2CH2-N'Bu)GaCl]2 with a Ga-Ga single bond connecting the two units, as again shown by a single crystal X-ray diffraction analysis.
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