A new mononuclear Zn(II) complex, [Zn(L 2 )2]·CH3OH (HL 2 = 1-(2-[(E)-3,5-dichloro-2-hydroxybenzylidene]amino}phenyl)ethanone oxime), has been synthesized via complexation of Zn(II) acetate dihydrate with HL 1 (HL 1 = 2-(3,5-dichloro-2-hydroxyphenyl)-4-methyl-1,2-dihydroquinazoline 3-oxide) originally. HL 1 and its corresponding Zn(II) complex were characterized by infrared (IR), ultraviolet-visible light (UV–Vis) and emission spectroscopy, as well as by elemental analysis. The crystal structure of the complex has been determined by single-crystal X-ray diffraction (XRD). Each complex links two other molecules into an infinite one-dimensional (1-D) chain through intermolecular hydrogen bonds. Moreover, the calculated highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energies show the character of the ligand HL 1 and the Zn(II) complex. Time-dependent density functional theory (TDDFT) calculations were done on the optimised geometries to understand the electronic structure and spectral transition in the ligand and the Zn(II) complex. A new mononuclear Zn(II) complex involving a Schiff base-type instead of an anticipated quinazoline complex has been synthesized and characterized structurally by spectroscopic methods. The crystal structure of the complex has been determined by single-crystal XRD. Each complex links two other molecules into an infinite 1-D chain through intermolecular hydrogen bonds. Moreover, the calculated HOMO and LUMO energies show the character of the ligand HL 1 and the Zn(II) complex. The TDDFT calculations were done on the optimised geometries to understand the electronic structure and spectral transition in the ligand and the Zn(II) complex.
一种新的单核Zn(II)配合物,[Zn(L 2 )2]·CH3OH (HL 2 = 1-(2-[(E)-3,5-二
氯-2-羟基亚苄基]
氨基}苯基)乙酮
肟),通过二
水合
乙酸锌(II)与 HL 1 的络合合成(HL 1 = 2-(3,5-二
氯-2-羟基苯基)-4-甲基-
1,2-二氢喹唑啉3-氧化物) 最初。 HL 1 及其相应的 Zn(II) 配合物通过红外 (IR)、紫外-可见光 (UV-Vis) 和发射光谱以及元素分析进行了表征。该配合物的晶体结构已通过单晶X射线衍射(XRD)确定。每个复合物通过分子间氢键将另外两个分子连接成无限的一维 (1-D) 链。此外,计算的最高占据分子轨道(HOMO)和最低未占据分子轨道(LUMO)能量显示了
配体HL 1 和Zn(II)配合物的特征。对优化的几何形状进行时间相关密度泛函理论 (TDDFT) 计算,以了解
配体和 Zn(II) 配合物中的电子结构和光谱跃迁。合成了一种新的单核 Zn(II) 配合物,涉及希夫碱型而不是预期的
喹唑啉配合物,并通过光谱方法进行了结构表征。通过单晶 XRD 确定了配合物的晶体结构。每个复合物通过分子间氢键将另外两个分子连接成无限的一维链。此外,计算的 HOMO 和 LUMO 能量显示了
配体 HL 1 和 Zn(II) 配合物的特征。 TDDFT 计算是在优化的几何结构上进行的,以了解
配体和 Zn(II) 配合物中的电子结构和光谱跃迁。