A. Martin et al., MOLECULAR-STRUCTURE OF O(ETA(5)-PENTAMETHYLCYCLOPENTADIENYL)ZIRCONIUM(IV), Journal of organometallic chemistry, 480(1-2), 1994, pp. 30000010-30000011
X-ray analysis of the yellow, air-unstable, crystalline compound CpZr
Cl3 (1) which results from the reaction of ZrCl4 with CpSiMe3 confirm
s the presence of two CpZrCl3 moieties related by a centre of symmetr
y with two chlorine atoms bridging the metals. 1 is therefore a dimer,
despite the molecular structure of [CpZrCl3], which was found to be a
polymer.