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Synthesis and Crystal Structure of New Early‐Lanthanide Organometallic Clusters
Author(s) -
Barnea Eyal,
Averbuj Claudia,
Kapon Moshe,
Botoshansky Mark,
Eisen Moris S.
Publication year - 2007
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.200601167
Subject(s) - chemistry , lanthanide , cluster (spacecraft) , crystal structure , chloride , crystallography , ion , organometallic chemistry , stereochemistry , medicinal chemistry , organic chemistry , computer science , programming language
Reaction of Cp* 2 NdCl · LiCl · 2thf ( 1 ) with excess catecholborane affords the hexameric cluster (Cp*NdCl 2 ) 6 (LiCl) 3 (thf) 3 ( 2 ) bearing three types of bridging chloride ions. Heating the reaction mixture affords the tetrameric cluster [(Cp*NdCl 2 ) 4 (μ 4 ‐Cl)] 2 [LiO 2 ][LiO 2 *Li 2 O*O 2 ] ( 3 ), which has the first crystal structure with the LiO 2 + motif. Reaction of complex 1 or the analogous Sm complex, 4 , with pinacolborane affords clusters 5a (Nd) or 5b (Sm), respectively, a second type of hexameric cluster built from two CpNd 3 Cl 5 (thf) units bonded by two μ 2 ‐Cl atoms. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)