in benzene-d6 byproducts: hydrogen; react. of the nickel complex and zirconocene dihydride in benzene-d6 in a sealed NMR-tube under dry nitrogen; monitored by NMR;
in tetrahydrofuran Zr complex dissolved in THF; Ph2SbCl3 (1 equiv.) added at room temp.; stirred; volatiles removed in vac.; crystd. from hexane at 5°C (Ph2SbCl); detd. by single crystal X-ray diffraction;
