in neat (no solvent) Cp2Be was condensed into NMR tube on high vacuum line, then removed to N2 dry box for addition of BeCl2, to solids form viscous slush, after standing overnight LiSiMe3 was added, mixt. was heated; mixt. was condensed in dry C6D6; NMR;

in neat (no solvent) excess of BeCl2; purification by vacuum transfer;

in neat (no solvent) Cp2Be was condensed into NMR tube on high vacuum line, then removed to N2 dry box for addition of BeCl2, to solids form viscous slush, after standing overnight LiSiMe3 was added, mixt. was heated; mixt. was condensed in dry C6D6; NMR;