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首页> 外文期刊>Crystal growth & design >Ligand Coordination Site-Directed Assembly of Copper(I) Iodide Complexes of ((Pyridyl)-1-pyrazolyl)pyridine
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Ligand Coordination Site-Directed Assembly of Copper(I) Iodide Complexes of ((Pyridyl)-1-pyrazolyl)pyridine

机译:((吡啶基)-1-吡唑基)吡啶的碘化铜(I)配合物的配体配位定点组装

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摘要

A series of ((pyridinyl)-1H-pyrazolyl)pyridine (pypzpy) ligands in which the pyrazolyl ring at 1- and 3-positions is modified by two 2-, 3-, or 4-pyridyl groups were prepared. Reaction of CuI with 2-(1-(pyridin-2-yl)-1H-pyrazolyl)pyridine (2,2'-pypzpy) in MeCN at room temperature or solvothermal reaction of the same components at 120 degrees;C afforded one binuclear complex [{(2,2'-pypzpy)Cu}(mu-I)](2) (1). Treatment of CuI with 3-(1-(pyridin-2-yl)-1H-pyrazolyl)pyridine (3,2'-pypzpy) at room temperature or at 120 degrees;C produced one-dimensional (1D) polymer [{Cu-3(mu(3)-I)(3)}(mu-3,2'-pypzpy)](n) (2) and one two-dimensional (2D) polymer [{Cu-2(mu-I)(mu3-I)}(2)(3,2'-pypzpy())2](n) (3), respectively. Similar reactions of CuI with 4-(1-(pyridin-2-yl)-1H-pyrazolyl)pyridine (4,2'-pypzpy) at room temperature or at 150 degrees;C yielded one 1D polymeric complex [{Cu(mu(3)-I)}(2)(4,2'-pypzpy)(2){Cu(mu-I)}(2)](n) (4). Complexes [{Cu-3(mu(3)-I)(3)}(mu-2,3'-pypzpy)](n) (5), [(CuI)(mu-2,3'-pypzpy)](2) (6), [(Cu2I2)(3,3'-pypzpy)] (7), [(CuI)(4,3'-pypzpy)] (8), [{Cu(mu(3)-I)}(2)(mu-2,4'-pypzpy)(2){Cu(mu-I)}(2)](n) (9), [(CuI)(3,4'-pypzpy)] (10), and [(CuI)(mu-4,4'-pypzpy)](n) (11) could be isolated by solution reactions or solvothermal reactions of CuI with 2-, 3-, 4-(1-(pyridin-3-yl)-1H-pyrazolyl)pyridine (2,3'-, 3,3'-, 4,3'-pypzpy), or 2-, 3-, 4-(1-(pyridin-4-yl)-1H-pyrazolyl)pyridine (2,4'-, 3,4'-, 4,4'-pypzpy). Compounds 111 were characterized by IR, elemental analysis, powder X-ray diffraction, and single-crystal X-ray crystallography. Complex 1 contains a normal [Cu(mu-I)](2) dimeric structure. Complexes 2 and 5 consist of a unique displaced staircase chain [Cu-2((3)-I)(2)](n). Complex 3 has a 2D network formed by linking chairlike [Cu-2(mu-I)(mu(3)-I)](2) units with two pairs of 3,2'-pypzpy bridges. Complexes 4 and 9 have a rare 1D triple chain, in which one internal 1D ladder-like chain [Cu-2(mu(3)-I)(2)](n) is connected with two zigzag chains [Cu(mu-I)](n) via 4,2'-pypzpy or 2,4'-pypzpy ligands. Compound 6 consists of two [CuI] units interconnected by two 2,3'-pypzpy ligands. Compound 11 contains a 1D chain assembled by monomeric [CuI] units and 4,4'-pypzpy ligands. The luminescence properties of 1-11 in solid state were also investigated at room temperature. These results offer an interesting insight into how the coordination sites of the pypzpy ligands do exert great impact on their coordination modes, the coordination spheres of the Cu(I) centers, the formation of the [CunIn] motifs and the topological structures of the final complexes.
机译:制备了一系列((吡啶基)-1H-吡唑基)吡啶(pypzpy)配体,其中1-和3-位的吡唑基环被两个2-,3-或4-吡啶基修饰。 CuI与2-(1-(吡啶-2-基)-1H-吡唑基)吡啶(2,2'-pypzpy)在室温下在MeCN中反应或相同组分在120摄氏度下进行溶剂热反应;得到一双核复合物[{((2,2'-pypzpy)Cu}(mu-I)](2)(1)。在室温下或在120度下用3-(1-(吡啶-2-基)-1H-吡唑基)吡啶(3,2'-pypzpy)处理CuI; C生成一维(1D)聚合物[{Cu -3(mu(3)-I)(3)}(mu-3,2'-pypzpy)](n)(2)和一种二维(2D)聚合物[{Cu-2(mu-I) (mu3-I)}(2)(3,2'-pypzpy())2](n)(3)。 CuI与4-(1-(吡啶-2-基)-1H-吡唑基)吡啶(4,2'-pypzpy)在室温或150°C下的相似反应;产生一种1D聚合物络合物[{Cu(mu (3)-I)}(2)(4,2'-pypzpy)(2){Cu(mu-I)}(2)](n)(4)。配合物[{Cu-3(mu(3)-I)(3)}(mu-2,3'-pypzpy)](n)(5),[(CuI)(mu-2,3'-pypzpy) ](2)(6),[(Cu2I2)(3,3'-pypzpy)](7),[(CuI)(4,3'-pypzpy)](8),[{Cu(mu(3) -I)}(2)(mu-2,4'-pypzpy)(2){Cu(mu-I)}(2)](n)(9),[(CuI)(3,4'-pypzpy )](10)和[(CuI)(mu-4,4'-pypzpy)](n)(11)可以通过CuI与2-,3-,4-(1的溶液反应或溶剂热反应来分离-(吡啶-3-基)-1H-吡唑基)吡啶(2,3'-,3,3'-,4,3'-pypzpy)或2-,3-,4-(1-(吡啶- 4-基)-1H-吡唑基)吡啶(2,4'-,3,4'-,4,4'-pypzpy)。通过IR,元素分析,粉末X射线衍射和单晶X射线晶体学表征化合物111。配合物1包含正常的[Cu(mu-I)](2)二聚体结构。配合物2和5由独特的置换楼梯链[Cu-2((3)-I)(2)](n)组成。复合体3具有通过将椅子状[Cu-2(mu-I)(mu(3)-I)](2)单元与两对3,2'-pypzpy桥链接而形成的2D网络。配合物4和9具有稀有的1D三链,其中一条内部1D梯状链[Cu-2(mu(3)-I)(2)](n)与两条之字形链[Cu(mu- I)](n)通过4,2'-pypzpy或2,4'-pypzpy配体。化合物6由通过两个2,3'-pypzpy配体互连的两个[CuI]单元组成。化合物11包含由单体[CuI]单元和4,4'-pypzpy配体组装的1D链。还在室温下研究了固态的1-11的发光性质。这些结果为pypzpy配体的配位点如何对它们的配位模式,Cu(I)中心的配位域,[CunIn]图案的形成以及最终的拓扑结构产生了重大影响提供了有趣的见解。复合体。

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