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: Changchun Institute of Applied Chemistry Academia Sinica,Changchun 130022,China,Changchun Institute
• 出 处: Journal of Rare Earths
• 发表日期: 1992年04期
• 关键词: lithium neodymium dimensions monoclinic C_8H_8 Li THF coordinated attached latte

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 moleculesadduct.In the anion,the neodymium atom is coordinated by two COT rings.The structure of the cation showsthat the lithium atom is attached with THF molecules only.

The reaction of NdCl_3 with lithium methylnaphthalene in 1: 2 mole ratio in THF generated 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 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 moleculesadduct. In the anion, the neodymium atom is coordinated by two COT rings. The structure of the cation show that the lithium atom is attached with THF molecules only.