A. Sekiguchi et al., CAGE COMPOUNDS OF SI AND GE - SYNTHESIS AND STRUCTURES, Phosphorus, sulfur and silicon and the related elements, 93(1-4), 1994, pp. 193-196
Syntheses, characterization, and reactions of octasilacubane Si8R8 (R
= 2,6-diethylphenyl), octagermacubane Ge8R8 (R = 2,6-diethylphenyl), h
exasilaprismane Si6R6 (R = 2,6-diisopropylphenyl), and hexagermaprisma
ne Ge6R6 (R = 2,6-diisopropylphenyl) are reported.