79269-71-9Relevant articles and documents
Strelets, V. V.,Soloveichik, G. L.,Sizov, A. I.,Bulichev, B. M.,Rusina, A.,Vlchek, A. A.
, (1983)
STRUCTURE AND REACTIVITY OF SUBSTITUTED DI-η5-CYCLOPENTADIENYL METAL DIHALIDES. CRYSTAL STRUCTURE OF DICHLOROBIS(Η5-t-BUTYLCYCLOPENTADIENYL)ZIRCONIUM(IV)
Howie, R.A.,Mcquillan, G.P.,Thompson, D.W.,Lock, G.A.
, p. 213 - 220 (1986)
A new approach to the synthesis of t-butylcyclopentadienyl and related anions, via the addition of methyl- or other alkyl-lithium compounds to dimethylfulvene, is reported and details are given for the preparation of (η5-t-BuCp)2ZrCl2 and (η5-t-BuCp)2TiCl2.The zirconium compound is orthorhombic, P21212, a 13.003(17), b 10.761(10), c 6.703(8) Angstroem.A crystal structure determination (R = 0.037, 980 reflections) shows that the t-butyl groups are directed away from each other on opposite sides of the molecule: this structure appears to be adopted only in molecules in which the substituent groups are too bulky to be accommodated directly above and below the MCl2 group.