SYNTHESES AND CHARACTERIZATION OF THE π-ALLYL-RARE EARTH COMPLEXES AND STUDIES ON THE MECHANISM OF OLIFEN POLYMERIZATLONⅠ.SYNTHESIS AND CHARACTERIZATION OF LiLn(π-C3H5)4·nD

Chinese Journal of Applied Chemistry ›› 1991, Vol. 0 ›› Issue (5): 81-84.

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SYNTHESES AND CHARACTERIZATION OF THE π-ALLYL-RARE EARTH COMPLEXES AND STUDIES ON THE MECHANISM OF OLIFEN POLYMERIZATLONⅠ.SYNTHESIS AND CHARACTERIZATION OF LiLn(π-C₃H₅)₄·nD

Li Fengfu, Jin Yingtai, Pei Fengkui, Wang Fosong

Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022

Received:1990-09-17 Revised:1991-05-14 Published:1991-10-10 Online:1991-10-10

Abstract

Abstract: Seven π-allyl-rare earth complexes were synthesized by reacting anhydrous lanthanidethichloride with C₃H₅Li at 1:4 mol ratio in THF-ether solution.The complexes with generalformula LiLn(C₃H₅)₄·nD(Ln=La, n = 3; Ln = Ce, Pr, Nd, Sm, Gd, n = 2; Ln = Y, n= 2.5;D= dioxane) Were characterized by clemental analyses and IR spectra.The single crystalof LiCe(C₃H₅)₄·4D complex was obtained and its structure was determined by X-ray diffr-action at 233K.The crystal belongs to crthorhombic system with space group I2₁2₁2₁, a =11.325(3)Å, b = 16.645(5)Å, c = 19.605(5)Å, α=β=γ= 90°; v = 3695.49Å³; Z = 4.

Key words: allyl-rare earth complex, synthesis, crystal structure

Li Fengfu, Jin Yingtai, Pei Fengkui, Wang Fosong. SYNTHESES AND CHARACTERIZATION OF THE π-ALLYL-RARE EARTH COMPLEXES AND STUDIES ON THE MECHANISM OF OLIFEN POLYMERIZATLONⅠ.SYNTHESIS AND CHARACTERIZATION OF LiLn(π-C₃H₅)₄·nD[J]. Chinese Journal of Applied Chemistry, 1991, 0(5): 81-84.

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SYNTHESES AND CHARACTERIZATION OF THE π-ALLYL-RARE EARTH COMPLEXES AND STUDIES ON THE MECHANISM OF OLIFEN POLYMERIZATLONⅠ.SYNTHESIS AND CHARACTERIZATION OF LiLn(π-C₃H₅)₄·nD

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