Hh. Karsch et al., A NOVEL TRICYCLE WITH A PLANAR TETRAGERMANIUM(I) 4-MEMBERED RING, Journal of organometallic chemistry, 462(1-2), 1993, pp. 30000003-30000005
Nucleophilic attack of Li(t)Bu on Ge-2[C(PMe(2))(2)(SiMe(3))](2) leads
, via formation of {Li[C(PMe(2))(2)(SiMe(3))]}(2), to the novel tricyc
le Ge-4 [C(PMe(2))(2)(SiMe(3))](2)((t)Bu)(2), which contains a planar
four-membered ring of Ge-I atoms. The compound was characterized by me
ans of NMR spectroscopy and an X-ray diffraction study.