由异三核配位单元和4,4'-联苯二甲酸酯配体构建的二维金属有机框架（MOF）。

Two-dimensional metal-organic frameworks (MOFs) constructed from heterotrinuclear coordination units and 4,4'-biphenyldicarboxylate ligands.

作者信息

Wang Yonghui, Bredenkötter Björn, Rieger Bernhard, Volkmer Dirk

机构信息

Institute of Materials and Catalysis, University of Ulm, Albert-Einstein-Allee 11, Ulm, D-89081, Germany.

出版信息

Dalton Trans. 2007 Feb 14(6):689-96. doi: 10.1039/b609733b. Epub 2006 Dec 5.

DOI:10.1039/b609733b

PMID:17268603

Abstract

Three novel metal-organic frameworks (MOFs) formulated as [Zn(2)M(BPDC)(3)(DMF)(2)].4DMF (M = Co(II), Ni(II) or Cd(II); BPDC = 4,4'-biphenyldicarboxylate; DMF = N,N'-dimethylformamide) have been prepared via solvothermal synthesis from mixtures of the corresponding transition metal salts and 4,4'-biphenyldicarboxylic acid (H(2)BPDC). The framework structures are characterized by single-crystal X-ray diffraction analysis, IR and UV-vis diffuse reflectance spectroscopy, thermogravimetric analysis (TGA), and X-ray powder diffraction (XRPD). All three compounds possess essentially the same 2-D layered coordination framework consisting of linear heterotrinuclear secondary building units (SBUs) connected by rigid bridging BPDC ligands. Crystal data: for (C(60)H(66)CoN(6)O(18)Zn(2)): monoclinic, space group P2(1)/n, M = 1348.86, a = 20.463(4), b = 14.819(3), c = 23.023(5) A, beta = 111.75(3) degrees , V = 6484(2) A(3), Z = 4, D(c) = 1.382 Mg m(-3). For (C(60)H(66)N(6)NiO(18)Zn(2)): monoclinic, space group P2(1)/n, M = 1348.64, a = 11.670(2), b = 14.742(3), c = 19.391(4) A, beta = 102.29(3) degrees , V = 3259.5(11) A(3), Z = 2, D(c) = 1.374 Mg m(-3). For (C(60)H(66)CdN(6)O(18)Zn(2)): monoclinic, space group P2(1)/n, M = 1402.33, a = 11.491(2), b = 14.837(3), c = 19.386(4) A, beta = 101.53(3) degrees , V = 3238.3(11) A(3), Z = 2, D(c) = 1.438 Mg m(-3).

摘要

通过溶剂热合成法，由相应的过渡金属盐与4,4'-联苯二甲酸（H₂BPDC）的混合物制备了三种新型金属有机框架（MOF），其化学式为[Zn₂M(BPDC)₃(DMF)₂]·4DMF（M = Co(II)、Ni(II) 或 Cd(II)；BPDC = 4,4'-联苯二甲酸酯；DMF = N,N'-二甲基甲酰胺）。通过单晶X射线衍射分析、红外和紫外可见漫反射光谱、热重分析（TGA）以及X射线粉末衍射（XRPD）对框架结构进行了表征。所有这三种化合物都具有基本相同的二维层状配位框架，该框架由通过刚性桥连BPDC配体连接的线性异三核二级结构单元（SBU）组成。晶体数据：对于（C₆₀H₆₆CoN₆O₁₈Zn₂）：单斜晶系，空间群P2(1)/n，M = 1348.86，a = 20.463(4)，b = 14.819(3)，c = 23.023(5) Å，β = 111.75(3)°，V = 6484(2) Å³，Z = 4，D(c) = 1.382 Mg m⁻³。对于（C₆₀H₆₆N₆NiO₁₈Zn₂）：单斜晶系，空间群P2(1)/n，M = 1348.64，a = 11.670(2)，b = 14.742(3)，c = 19.391(4) Å，β = 102.29(3)°，V = 3259.5(11) Å³，Z = 2, D(c) = 1.374 Mg m⁻³。对于（C₆₀H₆₆CdN₆O₁₈Zn₂）：单斜晶系，空间群P2(1)/n，M = 1402.33，a = 11.491(2)，b = 14.837(3)，c = 19.386(4) Å，β = 101.53(3)°，V = 3238.3(11) Å³，Z = 2，D(c) = 1.438 Mg m⁻³。