perhaps thats the problem you're reading a borane article the one i am referring to is attwood bott el al inorg chem p which describes the synthesis of the gallane tmeda adduct by a reaction of the gallane trimethylamine adduct in et o basically add tmeda solution to gallane adduct solution slowly wait a while get rid of ether recrystallise jobs a good'un as we say in the old country did some similar myself once with low valent indium gallium compounds but never got a paper out of it sadly my gunk never recrystallised