摘要
Ligand L (H3L = Glycylglycine, N-[1-(2-hydroxy,5-bromophenyl)propylidene]) has been prepared which contain flexible dipeptide group and substituted phenol group. The ligand react with Cu(NO3)(2) to give the metallo-ligand [CuL](-), in which L acting as quadridentate ONNO chelate, coordinate to Cu(II) ion. The metallo-ligand [CuL](-) is rigid and has multifunctional groups. Reaction of metallo-ligand with Sr(NO3)(2) leads to the formation of the title complexes [Sr(H2O)(4)(CuL)(2)]center dot (CuL)center dot 2.25H(2)O (1). This heteronuclear compound has been characterized by elemental analyses, spectroscopic analyses, and single crystal diffraction. Structural analyses reveal that the complex was crystallized in triclinic space group P-1 and has intricate 2D net-structure, which contain an infinite 1D [Sr(H2O)(4)(CuL)(2)](+) ladder-like structure. In addition ESR (electron spin resonance) property and thermogravimetric analysis of 1 are discussed in detail.
- 出版日期2011-3
- 单位浙江理工大学