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A. I. Sizov, T. M. Zvukova, Z. A. Starikova, B. M. Bulychev
Crystal and molecular structures
of the adducts (Cp2YCl)2.L (L = 2THF, DME,
1,4-.dioxane)
Abstract
The yttrium(III) adducts,
(Cp2YCl)2. C4H8O (5),
[(Cp2YCl)2. C4H8O2]n
(6) and Cp2Y(C4H10O2)(m-Cl)(Cl)YCp2 (7) were prepared by reactions of (Cp2YCl)2
with corresponding O-bases and were characterized by X-ray crystallography. The
complex 5 consists of (Cp2YCl)2 dimers bonded with two
THF molecules (dY-O = 2.478E). In adduct 6 the (Cp2YCl)2
dimers are linked by 1,4-dioxane into a polymeric chain with long (dY-O
= 2.601 E) bonds. In
the asymmetric adduct 7 the DME molecule is bonded with one Y atom by both
oxygen atoms (dY-O = 2.382, 2.448 E) and the single bridge Y-Cl-Y bond is only
presented.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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