摘要
New podand compound 1,2 bis (8′ quinolyloxy ethoxy) benzene (BQEB) was prepared. A lanthanum adduct with BQEB was synthesized and its structure was characterized by X ray crystal analysis using Mo Kα radiation ( λ =0 071073 nm). Crystal data: space group C2/c, Z=4, a =1 8636(3) nm, b =2 0036(3) nm, c =1 5186(3) nm, α =90 00°, β =91 452(14)°, γ =90 00°, R f=0 0373 for 6520 observed data. In the crystal structure the La 3+ is ten coordinated by three NO - 3 and four H 2O. Two podand molecules link to the coordination core via O—H…N (average O…N=0 2766(3) nm) hydrogen bonds. The adduct has a one dimensional chain sandwich structure consisting of every two podand molecules with a [La(NO 3) 3·4H 2O] as a bridge. The whole crystal is packed in a manner of…LLMLLMLL….
New podand compound 1,2 bis (8′ quinolyloxy ethoxy) benzene (BQEB) was prepared. A lanthanum adduct with BQEB was synthesized and its structure was characterized by X ray crystal analysis using Mo Kα radiation ( λ =0 071073 nm). Crystal data: space group C2/c, Z=4, a =1 8636(3) nm, b =2 0036(3) nm, c =1 5186(3) nm, α =90 00°, β =91 452(14)°, γ =90 00°, R f=0 0373 for 6520 observed data. In the crystal structure the La 3+ is ten coordinated by three NO - 3 and four H 2O. Two podand molecules link to the coordination core via O—H…N (average O…N=0 2766(3) nm) hydrogen bonds. The adduct has a one dimensional chain sandwich structure consisting of every two podand molecules with a [La(NO 3) 3·4H 2O] as a bridge. The whole crystal is packed in a manner of…LLMLLMLL….
基金
ProjectsupportedbytheNationalNaturalScienceFoundationofChina (2 93 710 0 8)
