Synthesis, characterization, photoluminescent and thermal properties of zinc(ii) 4′-phenyl-terpyridine compounds
作者:Zhen Ma、Wanbing Lu、Baohuan Liang、Armando J. L. Pombeiro
DOI:10.1039/c3nj41176a
日期:——
Reactions between 4â²-phenyl-terpyridine (L) and several Zn(II) salts (trifluoromethane sulfonate, p-toluenesulfonate, benzoate, p-hydroxybenzoate, o-hydroxybenzoate or m-hydroxybenzoate) led to the formation of the complexes [Zn(OSO2CF3)2L(H2O)] (1), [Zn(p-OSO2PhCH3)2L] (2), [Zn(OCOPh)2L] (3), [Zn(p-OCOPhOH)2L] (4), [Zn(o-OCOPhOH)2L] (5) and [Zn(m-OCOPhOH)2L] (6), which were characterized by elemental analysis, 1H NMR, 13C NMR, IR, single crystal X-ray diffraction and fluorescence spectroscopies. In 1, the Zn atom is hexacoordinated, with a N3O3 coordination environment, whereas in the remaining structures the metal atom is envisaged as possessing distorted N3O2 irregular trigonal bipyramidal coordination geometries. All the compounds show interesting photo-luminescent properties in solid and solution states in DMF, DMSO and methanol, which are reported along with their TG-DTA thermal decomposition processes.
4-苯基-三联吡啶 (L) 和几种 Zn(II) 盐(三氟甲磺酸盐、对甲苯磺酸盐、苯甲酸盐、对羟基苯甲酸盐、邻羟基苯甲酸盐或间羟基苯甲酸盐)之间的反应导致形成络合物 [Zn (OSO2CF3)2L(H2O)] (1), [Zn(p-OSO2PhCH3)2L] (2), [Zn(OCOPh)2L] (3), [Zn(p-OCOPhOH)2L] (4), [ Zn(o-OCOPhOH)2L](5)和[Zn(m-OCOPhOH)2L](6)通过元素分析、1H NMR、13C NMR、IR、单晶X射线衍射和荧光光谱进行表征。在图1中,Zn原子是六配位的,具有N3O3配位环境,而在其余结构中,金属原子被认为具有扭曲的N3O2不规则三角双锥配位几何形状。所有化合物在 DMF、DMSO 和甲醇中的固态和溶液状态下均表现出有趣的光致发光特性,这些特性与其 TG-DTA 热分解过程一起被报道。