کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1306117 | 975067 | 2009 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: In situ synthesis and dielectric properties of copper(II) and nickel(II) chiral Schiff base complexes In situ synthesis and dielectric properties of copper(II) and nickel(II) chiral Schiff base complexes](/preview/png/1306117.png)
Two chiral Schiff base-containing complexes, [Cu(L1)](ClO4)2·H2O (1, L1 = (S,S)-N1,N2-bis((1H-imidazol-4-yl)methylene)cyclohexane-1,2-diamine) and [Ni(L2)2](ClO4)2 (2, L2 = (S,S)-N1-((1H-imidazol-4-yl)methylene)cyclohexane-1,2-diamine) were synthesized from the reaction mixture of 1H-imidazole-4-carbaldehyde, (S,S)-1,2-diaminocyclohexane and Cu(ClO4)2·6H2O or Ni(ClO4)2·6H2O in methanol. Single-crystal X-ray diffraction analyses reveal that the in situ generated chiral Schiff base ligands L1 and L2 are bisubstituted and monosubstituted, respectively, corresponding to the different metal ions CuII and NiII. Variable-frequency and -temperature dielectric properties of 1 and 2 have been studied.
One-pot approach in the presence of 1H-imidazole-4-carbaldehyde, (S,S)-1,2-diaminocyclohexane and Cu(ClO4)2·6H2O or Ni(ClO4)2·6H2O in methanol gives rise to the bisubstituted and monosubstituted chiral Schiff base-containing compounds 1-Cu and 2-Ni, respectively. Both complexes show normal dielectric behaviors at room temperature with ignorable dielectric losses.Figure optionsDownload as PowerPoint slide
Journal: Inorganic Chemistry Communications - Volume 12, Issue 12, December 2009, Pages 1175–1178