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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Inorganic-organic hybrid compounds based on octamolybdates and multidentate N-donor ligand: Syntheses, structures, photoluminescence and photocatalysis
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Inorganic-organic hybrid compounds based on octamolybdates and multidentate N-donor ligand: Syntheses, structures, photoluminescence and photocatalysis

机译：基于八钼酸盐和多齿N-供体配体的无机-有机杂化化合物：合成，结构，光致发光和光催化

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摘要

Six inorganic-organic hybrid compounds, namely, [Cu _2(2,4′- tmbpt) 2(β-Mo _8O _(26))(H _2O) _2]·7H _2O (1), [Cu(2,4′-tmbpt)(γ-Mo _8O _(26)) _(0.5)(H _2O)]·H _2O (2), [Co(2,4′-Htmbpt) _2(γ-Mo _8O _(26))(H _2O) _2] (3), [Zn(2,4′-Htmbpt) _2(γ-Mo _8O _(26))(H _2O) _2] (4), [Ni(2,4′-tmbpt)(α-Mo _8O _(26)) _(0.5)(H _2O)]·2.5H _2O (5) and [Ag(2,4′-Htmbpt)(β-Mo _8O _(26)) _(0.5)] (6), have been synthesized under hydrothermal conditions (2,4′-tmbpt = 1-((1H-1,2,4-triazol-1-yl)methyl)-3-(2-pyridyl)- 5-(4-pyridyl)-1,2,4-triazole). The structures of compounds 1-6 have been determined by single-crystal X-ray diffraction analyses and characterized by infrared spectra (IR), elemental analyses, powder X-ray diffraction (PXRD) analyses and thermogravimetric analyses (TGA). Compound 1 shows a 3D (3,4)-connected framework constructed by the 2D Cu(ii)-organic fragments and [β-Mo _8O _(26)] ~(4-) anions. Compound 2 exhibits a 2D layer structure based on Cu(ii)-organic chains and [γ-Mo _8O _(26)] chains. The layers are extended into a 3D supramolecular framework by hydrogen-bonding interactions. Compounds 3 and 4 are isostructural, and display 1D chain structures. The chains are further interlinked by hydrogen-bonding interactions to form 3D supramolecular architectures. Compound 5 shows a 3D framework based on the 2D Ni(ii)-organic fragments and [α-Mo _8O _(26)] ~(4-) anions. In compound 6, the 1D chains constructed by the Ag(i) ions, 2,4′-Htmbpt ligands and [β-Mo _8O _(26)] ~(4-) anions are extended by hydrogen-bonding interactions into a 2D supramolecular layer. Each layer threads into the adjacent layers, yielding a 2D → 3D interdigitated structure. Moreover, the photoluminescent properties of 4 and 6, the optical band gaps of 1-6, and the photocatalytic properties of 1-6 have also been investigated.
机译：六种无机-有机杂化化合物，即[Cu _2（2,4'- tmbpt）2（β-Mo_8O _（26））（H _2O）_2]·7H _2O（1），[Cu（2,4 ′-tmbpt）（γ-Mo_8O _（26））_（0.5）（H _2O）]·H _2O（2），[Co（2,4'-Htmbpt）_2（γ-Mo_8O _（26） ）（H _2O）_2]（3），[Zn（2,4'-Htmbpt）_2（γ-Mo_8O _（26））（H _2O）_2]（4），[Ni（2,4'- tmbpt）（α-Mo_8O _（26））_（0.5）（H _2O）]·2.5H _2O（5）和[Ag（2,4'-Htmbpt）（β-Mo_8O _（26））_ （0.5）]（6），是在水热条件下合成的（2,4'-tmbpt = 1-（（（1H-1,2,4-三唑-1-基）甲基）-3-（2-吡啶基） -5-（4-吡啶基）-1，2，4-三唑）。化合物1-6的结构已通过单晶X射线衍射分析确定，并通过红外光谱（IR），元素分析，粉末X射线衍射（PXRD）分析和热重分析（TGA）进行了表征。化合物1显示了由2D Cu（ii）有机片段和[β-Mo_8O _（26）]〜（4-）阴离子构成的3D（3,4）连接的骨架。化合物2表现出基于Cu（ii）-有机链和[γ-Mo_8O _（26）]链的二维层结构。这些层通过氢键相互作用扩展为3D超分子框架。化合物3和4为同构结构，显示1D链结构。链通过氢键相互作用进一步相互连接以形成3D超分子结构。化合物5显示基于2D Ni（ii）-有机片段和[α-Mo_8O _（26）]〜（4-）阴离子的3D骨架。在化合物6中，由Ag（i）离子，2,4'-Htmbpt配体和[β-Mo_8O _（26）]〜（4-）阴离子构成的一维链通过氢键相互作用扩展为二维超分子层。每层都穿入相邻的层，产生2D→3D叉指结构。此外，还研究了4和6的光致发光性质，1-6的光学带隙和1-6的光催化性质。

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