摘要
Two copper-nickel complexes, {[Cu（i-Pr3TACN）][Ni（CN）4]}2·2H2O （1） and {[Cu（DACH）][Ni（CN）4]}n （2）, have been synthesized by the self-assembly reactions of K2[Ni（CN）4] with CuCl2 and the corresponding chelating ligand 1,4,7-triisopropyl-1,4,7- triazacyclononane （i-Pr3TACN） or 1,4-diazacycloheptane （DACH）, respectively. The complexes were structurally characterized by single-crystal X-ray diffraction, elemental analyses, IR spectra and magnetic properties. Complex 1 presents a [2＋2] type of molecular square structure and 2 features a 2D β-pucker structure. The magnetic susceptibility measurements reveal a weak antiferromagnetic interaction between the Cu（Ⅱ） ions, with the J values of–22.11 and –32.50 cm-1 for 1 and 2. Moreover, by changing the size of macrocyclic ligands we have successfully constructed two different strictures, which may provide useful information for the construction of the structure.
Two copper-nickel complexes, {[Cu（i-Pr3TACN）][Ni（CN）4]}2·2H2O （1） and {[Cu（DACH）][Ni（CN）4]}n （2）, have been synthesized by the self-assembly reactions of K2[Ni（CN）4] with CuCl2 and the corresponding chelating ligand 1,4,7-triisopropyl-1,4,7- triazacyclononane （i-Pr3TACN） or 1,4-diazacycloheptane （DACH）, respectively. The complexes were structurally characterized by single-crystal X-ray diffraction, elemental analyses, IR spectra and magnetic properties. Complex 1 presents a [2＋2] type of molecular square structure and 2 features a 2D β-pucker structure. The magnetic susceptibility measurements reveal a weak antiferromagnetic interaction between the Cu（Ⅱ） ions, with the J values of–22.11 and –32.50 cm-1 for 1 and 2. Moreover, by changing the size of macrocyclic ligands we have successfully constructed two different strictures, which may provide useful information for the construction of the structure.
