SYNTHESIS OF (η5-C5H5)Ln(η8-C8H8 )(THF)(Ln=Pr,Nd,Gd) AND CRYSTAL STRUCTURE OF (η5-C5H5)Pr(η8-C8H8)(THF)

Chinese Journal of Applied Chemistry ›› 1992, Vol. 0 ›› Issue (4): 98-101.

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SYNTHESIS OF (η⁵-C₅H₅)Ln(η⁸-C₈H₈ )(THF)(Ln=Pr,Nd,Gd) AND CRYSTAL STRUCTURE OF (η⁵-C₅H₅)Pr(η⁸-C₈H₈)(THF)

Wen Ke, Jing Zhongsheng, Chen Wenqi

Changchun Institute of Applied Chemistry Academia Sinica, Changchun 130022

Received:1990-11-27 Revised:1991-07-20 Published:1992-08-10 Online:1992-08-10

Abstract

Abstract: The title compounds (Ln=Pr, Nd, n=2; Ln=Gd, n=1) were prepared by reacting LnCl₃ with NaC₅H₅ and K₂C₈H₈. The single crystals of (η⁵-C₅H₅)Pr(η⁸-C₈H₈)(THF)₂ obtained at -15℃ in THF have monoclinic space group P2₁ and a=0.8427(2)nm, b=0.9835 (2)nm, c=1.1799(2)nm, β=102.82(2)°, v=0.9536nm³, and Z=2. The final R value is 0.0383. The centroids of the C₅H₅ ring, C₈H₈ ring,and the two oxygen atoms from the two THF molecules form a distorted tetrahedron.

Key words: cyclopentadienyl, cyclooctatetraenyl, rare eatrh complex, synthesis, crystal structure

Wen Ke, Jing Zhongsheng, Chen Wenqi. SYNTHESIS OF (η⁵-C₅H₅)Ln(η⁸-C₈H₈ )(THF)(Ln=Pr,Nd,Gd) AND CRYSTAL STRUCTURE OF (η⁵-C₅H₅)Pr(η⁸-C₈H₈)(THF)[J]. Chinese Journal of Applied Chemistry, 1992, 0(4): 98-101.

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SYNTHESIS OF (η⁵-C₅H₅)Ln(η⁸-C₈H₈ )(THF)(Ln=Pr,Nd,Gd) AND CRYSTAL STRUCTURE OF (η⁵-C₅H₅)Pr(η⁸-C₈H₈)(THF)

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