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Substituted Ring‐Fused Yttrium Derivatives – X‐ray Crystal Structures of [(L′YCl 2 ·THF) 2 LiCl·2THF] and [{L′YCl(OH)} 6 ·2THF] (L′ = 2‐Phenyl‐4,5,6,7,8‐hexahydroazulenyl)
Author(s) -
Paolucci Gino,
Vignola Manuela,
Zanella Alessandra,
Bertolasi Valerio,
Polo Eleonora,
Sostero Silvana
Publication year - 2006
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200600399
Subject(s) - chemistry , moiety , crystal structure , cyclopentadienyl complex , ring (chemistry) , stereochemistry , lithium (medication) , organometallic chemistry , catalysis , ethylene , crystallography , medicinal chemistry , organic chemistry , medicine , endocrinology
The reaction of lithium salts of ring‐fused ligands (L), where the ring fused to the cyclopentadienyl moiety is a saturated one (six, seven, or eight carbon atoms), with YCl 3 in THF in 2:1 and 1:1 molar ratios affords complexes of formula [L 2 YCl] 2 and [(LYCl 2 · THF) 2 LiCl · 2THF], respectively. Here we report the synthesis, spectroscopic characterization, and X‐ray crystal structure of [(L′YCl 2 · THF) 2 LiCl · 2THF] (L′ = 2‐phenyl‐4,5,6,7,8‐hexahydroazulenyl), together with the crystal structure of the hexameric species [{L′YCl(OH)} 6 · 2THF], which was quite unexpectedly isolated during the attempted crystallization of the latter complex and is probably formed by partial hydrolysis of that complex. The activity of the new complexes towards ethylene and 1‐hexene polymerization reactions was also tested. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)