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在水溶液中合成了两个钒-稀土配合物NH4[Ln(H2O)9][(VIVO)2(μ2-O)(nta)2](Ln=Sm,Y),其中钒-钐配合物为单晶体,钒-钇配合物为多晶态粉末。单晶X-射线衍射分析表明,钒-钐配合物属单斜晶系,C2/c空间群,晶胞参数a=2.336(4),b=1.0907(9),c=1.0823(10)nm,β=93.21(2)°,V=2.753(6)nm3,Z=4。配合物包含了一个二核的钒阴离子[(VIVO)2(μ2-O)(nta)2]4-(H3nta=氨三乙酸)和一个九配位的钐阳离子[Sm(H2O)9]3+,两者通过氢键连接成三维超分子结构。
Two vanadium-rare earth complexes NH4 [Ln (H2O) 9] [(VIVO) 2 (μ2-O) (nta) 2] (Ln = Sm, Y) were synthesized in aqueous solution. The vanadium- Single crystal, vanadium - yttrium complex is polycrystalline powder. Single crystal X-ray diffraction analysis showed that the vanadium-samarium complex is a monoclinic, C2 / c space group with unit cell parameters of a = 2.336 (4), b = 1.0907 (9) and c = 1.0823 , β = 93.21 (2) °, V = 2.753 (6) nm3, Z = 4. The complex contains a binuclear vanadium anion [(VIVO) 2 (μ 2 -O) (nta) 2] 4- (H3nta = nitrilotriacetic acid) and a 9-coordinated samarium cation [Sm +, The two are connected by hydrogen bonding into a three-dimensional supramolecular structure.