首页> 外文期刊>Crystal growth & design >Discrete Complexes and One-Dimensional Coordination Polymers with [Cu(II)(2,2 '-bpy)](2+) and [Cu(II)(phen)](2+) Corner Fragments: Insight into Supramolecular Structure and Optical Properties
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Discrete Complexes and One-Dimensional Coordination Polymers with [Cu(II)(2,2 '-bpy)](2+) and [Cu(II)(phen)](2+) Corner Fragments: Insight into Supramolecular Structure and Optical Properties

机译:具有[Cu(II)(2,2'-bpy)](2+)和[Cu(II)(phen)](2+)角片段的离散配合物和一维配位聚合物:超分子结构和光学的洞察力物产

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摘要

The combination of [Cu(II)(2,2'-bpy)](2+) and [Cu(II)(phen)](2+) (2,2'-bpy = 2,2'-bipyridine; phen = 1,10-phenanthroline) corner fragments predisposed to pi-pi stacking interactions with bridging ligands 4,4'-bipyridine (4,4'-bpy), 4,4'-bipyridinethane (bpe), and 4,4'-bipyridinepropane (bpp) in the presence of linear SCN-, or tetrahedral ClO4- or BF4- inorganic anions and/or organic acetate anion provides access to a series of new metal-organic materials including non-centrosymmetric polymeric chains, whose architectures were confirmed through single crystal X-ray crystallographic analysis. The nine reported compounds comprise one mononuclear complex, [Cu(2,2'-bpy)(2)(CH3COO)](SCN)(H2O) (1), three binuclear complexes, [Cu-2(2,2'-bpy)(2)(CH3COO)(2)(SCN)(2)(4,4'-bpy)]0.5dmf (2), [Cu-2(phen)(2)(CH3COO)(2)(SCN)(2)(bpe)] (3), [Cu-2(phen)(2)(SCN)(4)(bpe)] (4), and five one-dimensional coordination polymers, {[Cu(2,2'-bpy)(4,4'-bpy)(ClO4)(2)](H2O)}(n) (5), {[Cu(phen)(4,4'-bpy)(BF4)(2)](H2O)}(n) (6), {[Cu(2,2'-bpy)(ClO4)(H2O)(bpp)](ClO4)}(n) (7), {[Cu(phen)(ClO4)(dmf)(bpp)](ClO4)}(n) (8), and {[Cu(phen)(bpp)(BF4)(2)][Cu(phen)(bpp)(2)(BF4)](BF4)}(n) (9). Coordination polymers represent the neutral (5, 6), cationic (7, 8), or a blend of neutral and cationic chains (9), and differ by the Cu(II) coordination cores, conformations of the bridging ligands, and functions of the anions. All compounds except 7 reveal cooperative pi-pi stacking interactions of corner fragments. As expected for the paramagnetic d(9) Cu(II) complexes, the polymeric solids show the luminescence quenching. The second order nonlinear optical properties of powders of the non-centrosymmetric compounds 8 and 9 were also tested.
机译:[Cu(II)(2,2'-bpy)](2+)和[Cu(II)(phen)](2+)(2,2'-bpy = 2,2'-联吡啶; phen = 1,10-菲咯啉)角片段易与桥接配体4,4'-联吡啶(4,4'-bpy),4,4'-联吡啶乙烷(bpe)和4,4'进行pi-pi堆积相互作用线性SCN-或四面体ClO4-或BF4-无机阴离子和/或有机乙酸根阴离子存在下的双联吡啶丙烷(bpp)提供了一系列新的金属有机材料的途径,包括非中心对称的聚合物链,其结构已得到证实通过单晶X射线晶体学分析。报告的9种化合物包括一种单核络合物[Cu(2,2'-bpy)(2)(CH3COO)] [SCN](H2O)(1),三种双核络合物[[Cu-2(2,2'- bpy)(2)(CH3COO)(2)(SCN)(2)(4,4'-bpy)] 0.5dmf(2),[Cu-2(phen)(2)(CH3COO)(2)(SCN )(2)(bpe)](3),[Cu-2(phen)(2)(SCN)(4)(bpe)](4)和五个一维配位聚合物,{[Cu(2, 2'-bpy)(4,4'-bpy)(ClO4)(2)](H2O)}(n)(5),{[Cu(phen)(4,4'-bpy)(BF4)(2 )](H2O)}(n)(6),{[Cu(2,2'-bpy)(ClO4)(H2O)(bpp)](ClO4)}(n)(7),{[Cu(phen )(ClO4)(dmf)(bpp)](ClO4)}(n)(8)和{[Cu(phen)(bpp)(BF4)(2)] [Cu(phen)(bpp)(2) (BF4)](BF4)}(n)(9)。配位聚合物代表中性(5,6),阳离子(7,8)或中性和阳离子链(9)的混合物,并且区别在于Cu(II)配位核心,桥连配体的构型以及阴离子。除7外的所有化合物都显示了角碎片的pi-pi协作堆积相互作用。正如对顺磁性d(9)Cu(II)配合物的预期,聚合物固体显示出发光猝灭。还测试了非中心对称化合物8和9的粉末的二阶非线性光学性质。

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