ISSN:
1600-5759
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
Bis(tetrahydroborato)[1,1,2,2-tetramethyl-1,2-ethylenebis(η5-cyclopentadienyl)]zirconium, (I), was synthesized by the reaction of the zirconocene dichloride with lithium tetrahydroborate. Crystals suitable for X-ray structure analysis were obtained by recrystallization from toluene. The molecule adopts an appproximate C2v symmetry. Both tetrahydroborate ligands are η2-coordinated and tilted by 18–19° out of the equatorial plane; the angle B1—Zr1—B2 is 104.7°. The cyclopentadienyl rings show a normal η5-coordinaton, with a centroid–Zr–centroid angle of 124.3°.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0108270100002250
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