Synthesis and Crystal Structure of a Novel Ion-pair Complex of [Li(THF)_4Nd(C_8H_8)_2]·2THF  

作　　者：齐贵中 林永华 金松春 沈琪 

机构地区：[1]Changchun Institute of Applied Chemistry,Academia Sinica,Changchun 130022,China

出　　处：《Journal of Rare Earths》1992年第4期263-266,共4页稀土学报（英文版）

摘　　要：The reaction of NdCl_3 with lithium methylnaphthalene in 1:2 mole ratio in THF generates black powder. The powder reacts with cyclooctatetraene(COT)in THF to form the title complex.[Li(THF)_4Nd(C_8H_8)_2]· 2THF crystallizes in the monoclinic space group P2/c with unit-cell dimensions a=1.7858(7)nm, h=1.3243(4)nm,c=1.8086(6)nm.β=106.52(4)°,V=4.10 nm^3 and D_c=1.268 g/cm^3 for Z=4. F(000)=1660,R=0.0774,R_n=0.0733.The complex consists of discrete ion-pair and two THF molecules adduct.In the anion,the neodymium atom is coordinated by two COT rings.The structure of the cation shows that the lithium atom is attached with THF molecules only.The reaction of NdCl_3 with lithium methylnaphthalene in 1:2 mole ratio in THF generates black powder. The powder reacts with cyclooctatetraene(COT)in THF to form the title complex.[Li(THF)_4Nd(C_8H_8)_2]· 2THF crystallizes in the monoclinic space group P2/c with unit-cell dimensions a=1.7858(7)nm, h=1.3243(4)nm,c=1.8086(6)nm.β=106.52(4)°,V=4.10 nm^3 and D_c=1.268 g/cm^3 for Z=4. F(000)=1660,R=0.0774,R_n=0.0733.The complex consists of discrete ion-pair and two THF molecules adduct.In the anion,the neodymium atom is coordinated by two COT rings.The structure of the cation shows that the lithium atom is attached with THF molecules only.

关 键 词：Crystal structure ND CYCLOOCTATETRAENE 

分 类 号：TF845-55[冶金工程—有色金属冶金]