4,5-diphenyl-N,N,N',N'-tetrakis(trimethylsilyl)-1,3,2-dioxagermole-2,2-diamine

2,2,6,6-tetramethyl-3,5-bis(trimethylsilyl)-3,5-diaza-2,6-disila-4-germaheptan-4-one

2,2,6,6-tetramethyl-3,5-bis(trimethylsilyl)-3,5-diaza-2,6-disila-4-germaheptane-4,4-diol