BIS[BIS(TRIMETHYLSILYL)AMINO]-GERMANIUM II; GERMANIUM II BIS[BIS(TRIMETHYLSILYL)AMIDE]; Germanium(II), bis[bis(trimethylsilyl)]amino-; GERMANIUM II BIS(HEXAMETHYLSILYL)AZIDE); germanium ii bis(hexamethyldisilazide; BIS[BIS(TRIMETHYLSILYL)AMINO]GERMANIUM(ll)