摘要
This paper reports two lanthanide complexes of formula (C_9H_7)Ln(C_8H_8)·(THF)_2 where Ln is Pr or Nd,C_9H_7 is indenyl,and C_8H_8 is cyclooctatetraene (COT).The complexes were prepared by the reaction of LnCl_3 with K(C_9H_7) and K_2(C_8H_8) in THF.(C_9H_7)Pr(C_8H_8)·(THF)_2 crystallizes in THF at - 15℃ in the monoclinic space group P2_1:with unit cell dimensions a=8.446(0),b=10.083(2), c=13.407(3),β=105.48(1)°,V=1100.43(35)~3,Dc=1.52g/cm^3 and Z=2.The final R value is 0.033,R_w value is 0.030,respectively.In (C_9H_7)Pr(C_8H_8)·(THF)_2 a five-membered ring centroid of C_9H_7,the C_8H_8 ring centroid and the two oxygen atoms from the two THF molecules form a distorted tetrahedral geometry around the metal.
This paper reports two lanthanide complexes of formula (C_9H_7)Ln(C_8H_8)·(THF)_2 where Ln is Pr or Nd,C_9H_7 is indenyl,and C_8H_8 is cyclooctatetraene (COT).The complexes were prepared by the reaction of LnCl_3 with K(C_9H_7) and K_2(C_8H_8) in THF.(C_9H_7)Pr(C_8H_8)·(THF)_2 crystallizes in THF at - 15℃ in the monoclinic space group P2_1:with unit cell dimensions a=8.446(0),b=10.083(2), c=13.407(3),β=105.48(1)°,V=1100.43(35)~3,Dc=1.52g/cm^3 and Z=2.The final R value is 0.033,R_w value is 0.030,respectively.In (C_9H_7)Pr(C_8H_8)·(THF)_2 a five-membered ring centroid of C_9H_7,the C_8H_8 ring centroid and the two oxygen atoms from the two THF molecules form a distorted tetrahedral geometry around the metal.
