F. Cosledan et al., SYNTHESIS, STRUCTURAL CHARACTERIZATION, AND REACTIVITY OF (8-METHOXYNAPHTHYL)HYDRIDOGERMANIUM TRIFLATES AND IODIDES, Organometallics, 17(11), 1998, pp. 2222-2227
New 8-(methoxynaphthyl)hydridogermanium triflates and iodides were syn
thesized by treatment of the corresponding germanes with trifluorometh
anesulfonic acid or I-2. Their characterization by H-1 and C-13 NMR an
d IR spectroscopy is reported. In the solid state, bis(8-methoxynaphth
yl)hydridogermanium triflate (6) exhibits a 5-coordinate germanium ato
m weakly linked to the triflate anion. The germyl iodide rapidly gives
the germoxolene with loss of MeI when it is heated in CH3CN. With H2O
, amine, and DMSO, the germyl triflates react quantitatively to form n
ew complexes which can be isolated and characterized. The X-ray crysta
l structure of the hydrate of bis(8-methoxynaphthyl)hydridogermanium t
riflate (11) shows the predominant formation of a hydrated germyl cati
on. Several tentative approaches to prepare germanols failed and alway
s gave stable germoxanes instead.