Decamethylzirconocene dichloride

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Decamethylzirconocene dichloride
Other names
Bis(Pentamethylcyclopentadienyl)zirconium dichloride
3D model (JSmol)
ECHA InfoCard 100.150.124 Edit this at Wikidata
  • InChI=1S/2C10H15.2ClH.Zr/c2*1-6-7(2)9(4)10(5)8(6)3;;;/h2*1-5H3;2*1H;/q2*-1;;;+4/p-2
  • C[C-]1C(=C(C(=C1C)C)C)C.C[C-]1C(=C(C(=C1C)C)C)C.Cl[Zr+2]Cl
Molar mass 432.58 g·mol−1
Appearance pale yellow solid
Density 1.451 g/cm3
Melting point > 300 °C (572 °F; 573 K)
GHS labelling:
GHS05: CorrosiveGHS07: Exclamation mark
H302, H312, H314, H332
P260, P261, P264, P270, P271, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P310, P312, P321, P322, P330, P363, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Decamethylzirconocene dichloride is an organozirconium compound with the formula Cp*2ZrCl2 (where Cp* is C5(CH3)5, derived from pentamethylcyclopentadiene). It is a pale yellow, moisture sensitive solid that is soluble in nonpolar organic solvents. The complex has been the subject of extensive research. It is a precursor to many other complexes, including the dinitrogen complex [Cp*2Zr]2(N2)3).[1] It is a precatalyst for the polymerization of ethylene and propylene.[2]

Further reading[edit]

  • Buchwald, S. L.; Nielsen, R. B. (1988). "Group 4 Metal Complexes of Benzynes, Cycloalkynes, Acyclic Alkynes, and Alkenes". Chemical Reviews. 88 (7): 1047–1058. doi:10.1021/cr00089a004.
  • Rosenthal, U.; et al. (2000). "What Do Titano- and Zirconocenes Do with Diynes and Polyynes?". Chemical Reviews. 33: 119–129. doi:10.1021/ar9900109. PMID 10673320.


  1. ^ Sikora, David J.; Moriarty, Kevin J.; Rausch, Marvin D. (1990). Dicarbonylbis(η5 -Cyclopentadienyl) Complexes of Titanium, Zirconium, and Hafnium. Inorganic Syntheses. Vol. 28. pp. 248–257. doi:10.1002/9780470132593.ch64. ISBN 9780470132593.
  2. ^ Resconi, Luigi; Piemontesi, Fabrizio; Franciscono, Giuseppe; Abis, Luigi; Fiorani, Tiziana (1992). "Olefin Polymerization at Bis(pentamethylcyclopentadienyl)zirconium and -hafnium Centers: Chain-Transfer Mechanisms". Journal of the American Chemical Society. 114 (3): 1025–1032. doi:10.1021/ja00029a035.