A novel heterobimetallic W–Ge compound. X-ray crystal structure of [W(μ-Cl)(GeCl3)(CO)3(η4-C7H8)]

The new heterobimetallic complex [W(μ-Cl)(GeCl3)(CO)3(η4-C7H8)] (1) has been prepared by photochemical reaction of W(CO)6 with bicyclo[2.2.1]hepta-2,5-diene (NBD) and GeCl4. The structure of compound 1 was established by X-ray crystallography. The IR, 1H and 13C NMR spectra are also described and correlated with the crystallographically observed geometry. Compound 1 is noteworthy since it is the first alkene complex of tungsten isolated in W(CO)6 – Lewis acid photocatalytic system.