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氯化钆与对-甲基苯基锂在四氢呋喃中反应得到产物之一为[Li(THF)_4][GdCl_4-(THF)_2],(M_r=738.2),在-70℃下进行X-射线衍射研究。其晶体属单斜晶系,P2/n空间群。晶体学参数为a=13.263(2),b=8.474(1),c=14.961(0);β=99.72(1)°,V=1657.23(?)~3,Z=2,D_c=1.48g/cm~3,F(000)=750,μ_c=24.2cm~(-1),最终偏离子为R=0.0614。研究结果表明,本题晶体是离子型晶体,围绕Gd~(3+)的四个Cl~-离子和两个THF分子的氧原子构成畸变的八面体。Li~+周围的四个THF分子的氧原子构成一个近似的四面体。
Reaction of gadolinium chloride with p-methylphenyllithium in tetrahydrofuran gave one of the products [Li (THF) _4] [GdCl_4- (THF) _2], (M_r = 738.2) Ray diffraction studies. The crystal is monoclinic, P2 / n space group. The crystallographic parameters are a = 13.263 (2), b = 8.474 (1), c = 14.961 (0); β = 99.72 (1) °, V = 1657.23 (?) ~ 3, Z = 2, D_c = 1.48g / cm ~ 3, F (000) = 750, μ_c = 24.2cm ~ (-1), the final deviation of the ion R = 0.0614. The results show that the present crystal is an ionic crystal, and the distorted octahedron is formed around the oxygen atoms of four Cl ~ - ions of Gd ~ (3+) and two THF molecules. The oxygen atoms of the four THF molecules around Li ~ + form an approximate tetrahedron.