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首页> 外文期刊>Crystal growth & design >Six new co-coordination polymers based on a tripodal carboxylate ligand
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Six new co-coordination polymers based on a tripodal carboxylate ligand

机译:六种基于三脚架羧酸酯配体的新型配位聚合物

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Six new compounds of partially or wholly deprotonated 3,5-bi(4-carboxy- phenoxy)-benzoic acid (H _3BCPBA), namely, {[Co(H _2BCPBA) _2(H _2O) _4]} _n (1), {[Co(HBCPBA) (bipy _(0.5)) _2?(H _2O)]} _n (bipy = 4,4′-bipyridine) (2), {[Co _3(BCPBA) _2(dpe) ?(μ _2-H _2O) _4]?2H _2O? 2DMF} _n (dpe = 1,2-di-4-pyridyleth-ene) (3), {[Co _3(BCPBA) _2(pdp)?(μ _2-H _2O _4]?2DMF} _n (pdp = 4-[(E)-4-pyridinylazo]pyridine) (4), {[Co _3(BCPBA) _2(bpe)?(μ _2-H _2O) _4]?2DMF} _n (bpe = 1,2-bis(4-pyridyl)ethane) (5), {[Co _2(HBCPBA) _2 (bpp)?(μ _2-H _2O) _2]?H _2O?2DMF} _n (bpp = 1, 3-bis(4-pyridyl)propane) (6) were synthesized in the presence or absence of auxiliary ligand. Their structures have been determined by single-crystal X-ray diffraction analysis and further characterized by elemental analysis, IR spectroscopy, and thermogravimetric analysis. Compound 1 is a zero-dimensional structure. Compound 2 is a two-dimensional (2D) sheet structure with two 2D → 2D interpenetration frameworks. Compounds 3-5 are similar and possess three-dimensional (3D) networks with two 3D → 3D interpenetration frameworks. In compound 6, H _3BCPBA and bpp ligands link Co centers to generate a 2D sheet structure which is further connected by intermolecular hydrogen bonds to form a 3D supramolecular structure. The photochemical properties are performed in the solid state at room temperature. Magnetic susceptibility measurements indicate that compounds 2-6 exhibit antiferromagnetic coupling between adjacent Co(II) ions.
机译:六个新的部分或全部去质子化的3,5-双(4-羧基苯氧基)-苯甲酸(H _3BCPBA),即{[Co(H _2BCPBA)_2(H _2O)_4]} _n(1), {[Co(HBCPBA)(bipy _(0.5)_2?(H _2O)]} _n(bipy = 4,4'-联吡啶)(2),{[Co _3(BCPBA)_2(dpe)?(μ _2-H _2O)_4]?2H _2O? 2DMF} _n(dpe = 1,2-di-4-pyridyleth-ene)(3),{[Co _3(BCPBA)_2(pdp)?(μ_2-H _2O _4]?2DMF} _n(pdp = 4 -[[(E)-4-吡啶基偶氮]吡啶))(4),{[Co _3(BCPBA)_2(bpe)?(μ_2-H _2O)_4]?2DMF} _n(bpe = 1,2-bis( 4-吡啶基)乙烷)(5),{[Co _2(HBCPBA)_2(bpp)?(μ_2-H _2O)_2]?H _2O?2DMF} _n(bpp = 1,3-双(4-吡啶基) )(丙烷)(6)在有或没有辅助配体的情况下合成,其结构已通过单晶X射线衍射分析确定,并通过元素分析,红外光谱和热重分析进一步表征,化合物1为零化合物2是具有两个2D→2D互穿框架的二维(2D)片状结构,化合物3-5相似,并具有带有两个3D→3D互穿框架的三维(3D)网络。 H _3BCPBA和bpp配体连接Co中心以生成2D片状结构,该结构通过分子间氢键进一步连接以形成3D超分子lar结构。光化学性质在室温下以固态进行。磁化率测量表明,化合物2-6在相邻的Co(II)离子之间表现出反铁磁耦合。

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