- On the metal coordination in base-free tris(cyclopentadienyl) complexes of the lanthanoids. 2. The x-ray structure of (C5L5)3LaIII: A notably stable polymer displaying more than three different La?C interactions
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Crystalline base-free Cp3La (Cp = C5H5; monoclinic P, space group P 21; a = 8.427 (5) ?, b = 9.848 (5) ?, c = 8.456 (6) ?, β = 115.80 (6)°; Z = 2; R = 0.077) forms polymeric zig-zag chains of distinct (C5H5)2La(μ-η5:η 2-C5H5) units involving two nonequivalent terminal Cp ligands. The individual La?C distances cluster predominantly around 2.6, 2.8, 2.9, and 3.0 ? within the unexpectedly wide range 2.560-3.034 ?.
- Eggers, Stefan H.,Kopf, Jürgen,Dieter Fischer
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p. 383 - 385
(2008/10/08)
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