Zn(II) carboxylates containing heterocyclic secondary ligands: synthesis and structure manifestation through DFT studies
作者:Ayesha Zahoor、Imtiaz-ud-Din.、Sohaila Andleeb、Ahmad Raheel、Rabia Ayub、Sumaira Abbas、Muhammad Nawaz Tahir
DOI:10.1080/00958972.2021.1945046
日期:2021.6.18
Abstract New Zn(II) complexes (1–8) of general formula [Zn(R)2(L')2], where R = cinnamic acid (1–7), L' = 3-pyridine carboxamide (1), 2,2'-bipyridine (2), 3-pyridinecarbonitrile (3), 2-amino-5-(4-pyridinyl)-1,3,4-thiadiazole (4), 2-methylimidazole (5), 2-phenylimidazole (6), 2-imidazolidinethione (7) and for (8), R = acetic acid; L' = 2-amino-5-(4-pyridinyl)-1,3,4-thiadiazole)2, have been synthesized
摘要 通式 [Zn(R) 2 (L') 2 ] 的新型 Zn(II) 配合物 ( 1–8 ) ,其中 R = 肉桂酸 ( 1–7 ),L' = 3-吡啶甲酰胺 ( 1 ), 2 ,2'-联吡啶 ( 2 ), 3-吡啶甲腈 ( 3 ), 2-氨基-5-(4-吡啶基)-1,3,4-噻二唑 ( 4 ), 2-甲基咪唑 ( 5 ), 2-苯基咪唑 ( 6 ),2-咪唑烷硫酮( 7 )和对于( 8 ),R=乙酸;L' = 2-氨基-5-(4-吡啶基)-1,3,4-噻二唑) 2, 已通过 Zn(II) 羧酸盐和相应的氮基配体之间的化学计量反应合成。制备的化合物通过 FTIR、NMR 光谱和单晶 X 射线衍射技术分析其结构表现以及元素分析。6和8的晶体学数据显示四配位锌具有扭曲的四面体分子几何形状。热重数据表明,随着醋酸盐和噻二唑碎片逐渐损失,最终导致氧化锌作为残留质量8的化合物具有高稳定性。量子化学计