Dichloro[(s,s)-ethylenebis(4,5,6,7-tetrahydro-1-indenyl)]zirconium(IV)

rac-ethylenebis(4,5,6,7-tetrahydro-1-indenyl)zirconium ; (r)-ethylenebis(4,5,6,7-tetrahydro-1-indenyl)zirconium dichloride ; rac-dichloroethylenebis-(4,5,6,7-tetrahydro-1-indenyl)-zirconium(iv) ; dichloro-(r,r)-ethylenebis-(4,5,6,7-tetrahydro-1-indenyl)-zirconium(iv) ; rac-ethylenebis(4,5,6,7-tetrahydro-1-indenyl)zirconium(iv) dichloride ; (s)-ethylenebis(4,5,6,7-tetrahydro-1-indenyl)zirconium dichloride ; dichloro-(s,s)-ethylenebis-(4,5,6,7-tetrahydro-1-indenyl)-zirconium(iv)