Ligand isomerism-controlled structural diversity of Zn(II) complexes containingmethyl-4-(pyridinylcarbamoyl)benzoate ligands

• Main Authors: Chen-Hsing Lee, 李振興
• Other Authors: Chen Jhy-Der
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/56782595040157391019

碩士 === 中原大學 === 化學研究所 === 100 === This thesis discusses the synthesis and structures of a series of new zinc(II) complexes. The reactions ofmethyl-4-(pyridin-2-ylcarbamoyl)-benzoate (L1), methyl-4-(pyridin-3-ylcarbamoyl)benzoate (L2) and methyl-4-(pyridin-4-ylcarbamoyl)benzoate (L3) with Zn(II)metalsalts afforded the complexes Zn(L3)2(NO3)2, 1, Zn(L3)2(OAc)2,2,[Zn(L2)2(CH3CN)4](ClO4)2, 3, Zn2(L2)2(OAc)3.3(CH3O)0.7, 4,[Zn(L1)2(CH3CN)(H2O)](ClO4)2 , 5,[Zn(L1)2(CH3OH)2](ClO4),6.All the complexes have been characterized by EA, TGA and structurally characterized by X-ray crystallography. Complexs 1– 6 are all 0-D monomers. By hydrogen bonding, π---π stacking interaction and interactions from the anions, the molecules of 1– 6 are linked to form 2 -3D supramolecular structures. Complex 4 formsdinuclear structure and one of the OAc- ligands is disordered such that 65 % OAc- and 35 % CH3O- are coexistent. By different supramolecular interaction, the ligand of complex 1– 6 have different torsional angle between phenyl ring and pyridyl ring.