Hydrothermal Synthesis and Structure of a New 3D Lanthanide—Carboxylate Framework,[La(btec)1/2(H2btec)1/2(H2O)]n(H4btec=1,2,4,5—Benzeneteracarboxylic acid)

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摘要 Thetitlecomplex,[La(baec)1/2(H2btec)1/2(H2O)]n(H4btec=1,2,4,5-benzenetetracarboxylicacid)(1)wassynthesizedbythehydrothermalreactionof1,2,4,5-benzenetetracarboxylicdianhydridewithLa(NO3)3·6H2OinH2O,andcrystallizesinthetriclinicsystem,spacegroupP-1withα=0.64403(3)nm,b=0.94500(4)nm,c=0.96380(5)nm,α=88.535(2)°,β=100.314(2)°,γ=76.6470(10)°,V=1.69968(10)nm^3,Z=2,andfinalR=0.0274,Rw=0.0735.In1,eachLa(Ⅲ)ioniscoordinatedbyeightoxygenatomsfromsixcarboxylategroupsandonecoordinatedwatermolecule.TwodifferentcoordinstionmodesofH4btecwerePresentinthestructure,oneofwhichcontainstwoprotonatedcarboxylategrougpstobalancethecharge.
机构地区 不详
出处 《中国化学:英文版》 2003年4期
出版日期 2003年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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