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以1,3-丙二胺为模板,水热合成了三维孔道结构钒磷酸盐[H3N (CH2)3NH3]2[H3N(CH2)3NH2〗[H2N(CH2)3NH2V(H2O)2(VO)8(OH)4(PO4)4(HPO4)4].4H2O (DAP-V9P8)。用单晶X射线衍射、红外光谱和热重法对该化合物的晶体结构进行了表征。DAP-V9P8的无机骨架由[VO5]、[VO6]、[PO4]和[HPO4]通过共顶点连接而成。孔道中充填的丙二胺分子随所处结晶学位置不同,有三种完全不同的分子构象。其中,位于∥b轴直径达1.82nm椭圆形孔道中心的丙二胺分子碳链呈独特的直线状分布。晶体学参数:a=1.4820(9)nm,b=1.0255(4)nm,c=1.8181(9)nm ,β=90.391(8)°;P21/n(No.14);R1 =0.0772,wR2 =0.2004(I>(2σI))。与等结构的其它化合物进行了系统的结构比较。
Using 1,3-propanediamine as a template, three-dimensional pore structure of vanadyl phosphate [H3N (CH2) 3NH3] 2 [H3N (CH2) 3NH2] [H2N (CH2) 3NH2V (H2O) 2 (OH) 4 (PO4) 4 (HPO4) 4] .4H2O (DAP-V9P8). The crystal structure of the compound was characterized by single crystal X-ray diffraction, infrared spectroscopy and thermogravimetry. The inorganic backbone of DAP-V9P8 is composed of [VO5], [VO6], [PO4] and [HPO4] linked by a common vertex. There are three completely different molecular conformations in the channels filled with propylenediamine molecules depending on the crystallographic location. Among them, the molecular chain of propylenediamine located in the center of ∥b axis with an elliptic aperture of 1.82nm has a unique straight line distribution. Crystallographic parameters: a = 1.4820 (9) nm, b = 1.0255 (4) nm, c = 1.8181 (9) nm, β = 90.391 (8) °; P21 / n = 0.2004 (I> (2σI)). The systematic structural comparisons were made with other compounds of the same structure.