Claim: Organozirconium chemistry has been demonstrated from  decamethylzirconocene dichloride, and a well studied derivative is  Cp*2ZrH2
Evidence: Extensive chemistry has also been demonstrated from decamethylzirconocene dichloride, Cp*2ZrCl2. Well-studied derivatives include Cp*2ZrH2, [Cp*2Zr]2(N2)3, Cp*2Zr(CO)2, and Cp*2Zr(CH3)2.