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以3,3′,5,5′-(1,3-苯基)-联苯四羧酸(H4BTB)与4,4′-联吡啶(4,4′-bpy)为配体,与硝酸锌在水热条件下反应合成一个具有四重dmd穿插结构的3D骨架化合物{[Zn(BTB)0.5(4,4′-bpy)0.5(H2O)2]·0.5H2O}n(1),并用元素分析、红外分析、热重分析、粉末衍射等对其进行了表征。化合物1属于单斜晶系,空间群为C2/c,晶胞参数:a=1.825 36(5)nm,b=1.163 25(9)nm,c=1.615 28(7)nm,β=112.254 0(10)°,V=3.174 3(3)nm3,Z=8,Dc=1.631 g·cm-3,F(000)=1 592,R1=0.035 3,wR2=0.074 0[(I>2σ(I)]。结构分析表明H4BTB与Zn髤离子连接形成一个1D纳米管,并进一步通过4,4′-bpy连接成一个3D孔洞骨架结构,最终穿插形成具有四重穿插的dmd结构。
Using 3,3 ’, 5,5’ - (1,3-phenyl) -biphenyltetracarboxylic acid (H4BTB) and 4,4’-bipyridine (4,4’-bpy) as ligand, Zinc under hydrothermal conditions to synthesize a 3D framework compound {[Zn (BTB) 0.5 (4,4’-bpy) 0.5 (H2O) 2] · 0.5H2O} n (1) with a quadrangular dmd interspersed structure, Elemental analysis, infrared analysis, thermogravimetric analysis, powder diffraction and so on. Compound 1 belongs to the monoclinic system with a space group of C2 / c with unit cell parameters of a = 1.825 36 (5) nm, b = 1.163 25 (9) nm, c = 1.615 28 (10) °, V = 3.174 3 (3) nm3, Z = 8, Dc = 1.631 g · cm -3 F (000) = 1 592 R1 = 0.035 3 wR2 = 0.074 0 [(I> 2σ I)]. Structural analysis shows that H4BTB is connected with Zn 髤 ions to form a 1D nanotube, and further connected by 4,4’-bpy into a 3D pore framework structure, eventually interspersed to form a dmd structure with quadruple interspersed.