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La 4 (C 2 ) 2 Ge was obtained as a minor component from the reaction of the elements in corundum crucibles enclosed in stainless steel ampoules at 1360 K. The compound is gray with metallic luster. The crystal structure (space group I43d (No. 220); a=8.995(1) Å; Z=4; R(F)=0.033, R w (F 2 )=0.061 for 106 reflections (all data) with 2θ max =50° measured...
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