Trinuclear-based Copper(I) Pyrazolate Polymers: Effect of Trimer π-Acid···Halide/Pseudohalide Interactions on the Supramolecular Structure and Phosphorescence
作者:Lei Hou、Wen-Juan Shi、Yao-Yu Wang、Hai-Hua Wang、Lin Cui、Peng-Xiang Chen、Qi-Zhen Shi
DOI:10.1021/ic101901w
日期:2011.1.3
novel sandwich substructures of [(Cu3)(Cu2X2)(Cu3)] (X = Br, I, and SCN) in 2−4. In addition, both the π-acid [Cu3]···X contacts and intertrimer Cu···Cu interactions contribute to the one-dimensional (1D) double-strand and 2D/3D supramolecular structures of 1−5. All of these complexes exhibit high thermostability and bright solid-state phosphorescence upon exposure to UV radiation at room temperature.
在不同情况下,3,5-二乙基-4-(4-吡啶基)-吡唑(HL)与CuX或CuX 2(X = Cl,Br,I和SCN)的溶剂热反应提供了五种铜(I)配位聚合物,CuX [CuL] 3 ·溶剂} n(X = Cl,1 ; Br,2 ; I,3 ; X = SCN且溶剂= MeCN,4)和Cu 2 I 2 [CuL] 3 } n(5)。X射线衍射分析表明,所有配合物均具有三核[CuL] 3(称为Cu 3)二级结构单元,具有平面九元Cu 3 N具有三个外围吡啶基的6个金属环作为连接物,它们进一步通过CuX或Cu 2 X 2基序连接以生成单链或双链。有趣的是,内将Cu(I)原子的Cu 3单元1 - 5表现为配位不饱和的π酸中心到接触软卤化物/拟卤化物的CuX和Cu的X原子2 X 2个基序,这导致新的夹心子[ (铜3)(铜2 X 2)(铜3)(X = Br的,I,和SCN)在2 - 4。此外,无论该π甲酸[铜3