Ni(H)/Cu(H) Complexes with Two Pyrrole Thiosemicarbazone Ligands: Crystal Structures and DNA Interaction

作者：LI Xiao Jing; MAO Pan Dong; WU Wei Na; KOU Kai; LIU Shu Yang; WANG Yuan

来源：无机化学学报, 2017, 33(7).

DOI：10.11862/CJIC.2017.151

• pyrrole
• thiosemicarbazone
• complex
• crystal structure
• DNA interaction

Two Ni(Ⅱ) and two Cu(lⅡ) complexes,namely,[Ni(L1)2] ·2DMF (1),[Cu(L1)2] ·THF·0.25MeOH· 2.25H2O (2),[Ni (L2)2] ·2MeOH (3) and [Cu(L2)2] ·2EtOH (4) (where HL1 =5-formyl-3,4-dimethyl-1H-pyrrole-2-carboxylate thiosemicarbazone,HL2=5-formyl-2,4-dimethyl-1H-pyrrole-3-carboxylate N(4)-isopropyl thiosemicarbazone) have been synthesized and characterized by single crystal X-ray diffraction,elemental analysis and IR spectroscopy.X-ray diffraction analysis results show that the structures of all complexes are similar while with different solvent molecules.The metal ion in each complex with a distorted square planar geometry is surrounded by two anionic thiosemicarbazone ligands with N2S2 donor set.In addition,the fluorescence spectra indicate that the interactions of the complexes with DNA are stronger than those of the corresponding ligands.

• 单位
  化学化工学院; 河南理工大学