Synthesis, Spectroscopic and Thermal Studies of Zinc(II) Complexes with the Symmetrical Bidentate Schiff-Base Ligand (2,3-MeO-ba)2en: Crystal Structure of Zn((2,3-MeO-ba)2en)I2
作者:Aliakbar Dehno Khalaji、Gholamhossein Grivani、Samaneh Jalali Akerdi、Helen Stoeckli-Evans、Debasis Das
DOI:10.1007/s10870-011-0207-3
日期:2012.1
Two zinc(II) complexes [ZnI2((2,3-MeO-ba)2en)] (1) and [ZnCl2((2,3-MeO-ba)2en)] (2), with the symmetrical bidentate Schiff-base ligand (2,3-MeO-ba)2en [N,N′-bis(2,3-dimethoxybenzylidene)-1,2-diaminoethane] have been synthesized and characterized by elemental analyses (CHN), FT-IR and 1H-NMR spectroscopy. The thermal behaviors of these complexes were studied using thermogravimetry in order to evaluate their thermal stability and thermal decomposition pathways. The crystal structure of [ZnI2((2,3-MeO-ba)2en)] (1) was determined from single-crystal X-ray diffraction. The coordination polyhedron about the zinc(II) center in the complex 1 is best described as a distorted tetrahedron. Zinc(II) complexes [ZnX2((2,3-MeO-ba)2en)] (X = I (1) and Cl (2)) have been synthesized and characterized by elemental analyses (CHN), FT-IR and 1H-NMR spectroscopy. The crystal structure of 1 was determined from single-crystal X-ray diffraction. The coordination polyhedron about the zinc(II) center in the complex 1 is best described as a distorted tetrahedron.
两个锌(II)配合物[ZnI2((2,3-MeO-ba)2en)](1)和[ZnCl2((2,3-MeO-ba)2en)](2)与对称的双齿席夫碱配体(2,3-MeO-ba)2en[N、N′-双(2,3-二甲氧基亚苄基)-1,2-二氨基乙烷]合成,并通过元素分析(CHN)、傅立叶变换红外光谱和 1H-NMR 光谱对其进行了表征。为了评估这些复合物的热稳定性和热分解途径,使用热重法研究了它们的热行为。通过单晶 X 射线衍射确定了 [ZnI2((2,3-MeO-ba)2en)] (1) 的晶体结构。络合物 1 中锌(II)中心的配位多面体最好地描述为一个扭曲的四面体。我们合成了锌(II)配合物[ZnX2((2,3-MeO-ba)2en)](X = I (1) 和 Cl (2)),并通过元素分析(CHN)、傅立叶变换红外光谱和 1H-NMR 光谱对其进行了表征。通过单晶 X 射线衍射确定了 1 的晶体结构。络合物 1 中锌(II)中心的配位多面体最好地描述为畸变四面体。