Synthesis and Crystal Structure of N-Benzyl-N'-(2-pyridyl)urea and Its Mononuclear Cu(Ⅱ) Comple

• 作 者: 何磊 罗晓兰 张文勤
• 机 构: Department of Chemistry,Tianjin University,
• 出 处: 结构化学
• 发表日期: 2008年11期
• 关键词: pyridyl Complex intermolecular structurally conformation coordinated assembly bo

A new ligand of N-benzyl-N’-(2-pyridyl)urea L and its self-assembly product with CuCl2,[Cu(II)LCl2]∞ 1,have been synthesized and structurally characterized by IR,1H NMR and single-crystal X-ray diffraction analysis. In the structure of L,the urea groups adopt Z,E conformation to form dimers through intermolecular hydrogen bonds; while in complex 1,it assumes Z,Z conformation to fit for the coordination sphere of the Cu(II) ions. The coordinated units are connected through intermolecular N-H···Cl hydrogen bonds to form an extended 2D framework. Finally,a 3D structure is obtained via π-π stacking interactions between pyridyl rings.

A new ligand of N-benzyl-N’- (2-pyridyl) urea L and its self-assembly product with CuCl2, [Cu (II) LCl2] ∞ 1, have been synthesized and structurally characterized by IR, -crystal X-ray diffraction analysis. In the structure of L, the urea groups adopt Z, E conformation to form dimers through intermolecular hydrogen bonds; while in complex 1, it assumes Z, Z conformation to fit for the coordination sphere of the Cu (II) ions. The coordinated units are connected through intermolecular NH ··· Cl hydrogen bonds to form an extended 2D framework. Finally, a 3D structure is obtained via π-π stacking interactions between pyridyl rings.