Studies on organolanthanide complexes—XLV. The formation and X-ray crystal structure of bis(2-methoxyethylcyclopentadienyl)erbium hydroxide
1992
Abstract The partial hydrolysis of CP′ 2 ErCl ( 1 ) (Cp′ = CH 3 OCH 2 Ch 2 C 5 H 4 ) affords [CP′ 2 Er(μ-OH)] 2 , the single crystal X-ray structure of which reveals that the complex is dimeric with bridging hydroxide groups. The molecular structure shows the hydroxyl groups bridging with distances ErO = 2.258(5), 2.216(5) A, and the methoxyethyl group coordinating with distances ErO(1) = 2.542(3), ErCp 1 = 2.3981(4) and ErCp 2 = 2.1680(3) A. The bond angles of OErO* and OErO(1) in 2 are 71.6(2) and 73.2 (2)°, respectively.
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