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在水热条件下,合成了一个二维配位聚合物{[Zn2(L)(m-bix)]2·0.5(H2O)}n[H4L=5,5’-亚甲基二间苯二甲酸,m-bix=1,3-双(咪唑基-1-甲基)-苯],并通过红外和X-射线单晶衍射进行了表征。X-射线衍射结果表明,该配位聚合物晶体属于三斜晶系,P-1空间群,a=1.10294(17)nm,b=1.10806(15)nm,c=1.2605(2)nm,α=73.259(2)°,β=74.304(3)°,γ=67.576(2)°,V=1.3410(4)nm3,Z=1。配位聚合物中,Zn(II)原子采取四面体构型,三个氧原子分别来与三个L4-配体,一个氮原子来于配位的m-bix分子。每个L4-配体桥联六个Zn(II)中心,形成一个波浪状的二维面[Zn2(L)]∞,然后m-bix分子在[Zn2(L)]∞的上下方连结双核Zn(II)单元,形成二维层状化合物[Zn2(L)(m-bix)]∞。室温下研究了配位聚合物的固体荧光光谱特性。
Under hydrothermal conditions, a two-dimensional coordination polymer {[Zn2 (L) (m-bix)] 2 · 0.5 (H2O)} n [H4L = 5,5’-methylenebis Formic acid, m-bix = 1,3-bis (imidazolyl-1-methyl) -benzene] and characterized by infrared and X-ray single crystal diffractometry. X-ray diffraction results show that the coordination polymer belongs to the triclinic system with a = 1.10294 (17) nm, b = 1.10806 (15) nm and c = 1.2605 = 73.259 (2) °, β = 74.304 (3) °, γ = 67.576 (2) °, V = 1.3410 (4) nm3, Z = 1. Coordination polymers, Zn (II) atoms take the tetrahedron configuration, three oxygen atoms to three L4-ligand, a nitrogen atom to coordinate the m-bix molecules. Each L4-ligand bridges six Zn (II) centers to form a wavy two-dimensional surface [Zn2 (L)] ∞. The m-bix molecules then link the binuclear nuclei up and down [Zn2 (L) Zn (II) units to form a two-dimensional layered compound [Zn2 (L) (m-bix)] ∞. Solid-state fluorescence spectra of coordination polymers were investigated at room temperature.