in tetrahydrofuran under inert atm. using Schlenk techniques; to soln. of Pd complex in THFadded (C5H5)2Fe(BF4); ppt. slowly formed; mixt. stirred overnight; solid filtered; washed (THF) to remove ferrocene; dried briefly (vac.); solid redissolved in MeCN; soln. filtered; THF added to filtrate; allowed to stand overnight; crystals are formed; filtered; washed (THF); dried(vac.) overnight; elem. anal.;