Three copper(II) complexes constructed from a new 1,3,5-triazine derivative ligand

Three new complexes {[Cu(dpdapt)(Hhbd)] · 6H2O}n (1) (dpdapt = N,N′-di(2-pyridyl)-2,4-diamino-6-phenyl-1,3,5-triazine, Hhbd = 2-hydroxybutanedioicate dianion), [Cu(dpdapt)(SO4)] · 2H2O (2) and [Cu(dpdapt)(oxa)] · H2O (3) (oxa = oxalate dianion) have been synthesized and structurally characterized. The non-covalent interactions of π–π stacking and hydrogen bonding extend complexes 1–3 into supramolecular architectures, where 1 self-assembles into a 1D polymeric chain by dicarboxylate bridges and exhibits a 3D framework with 1D open channels, while complexes 2 and 3 display 2D wavelike networks. Interestingly, in 1, the host framework encapsulates hexameric water clusters that are connected into 1D arrays by supramolecular association along the 1D open channels. The UV/vis, IR spectra, fluorescence and TG analysis for complexes 1, 2 and 3 are also discussed.

Three new complexes {[Cu(dpdapt)(Hhbd)] · 6H2O}n (1), [Cu(dpdapt)(SO4)] · 2H2O (2) and [Cu(dpdapt)(oxa)] · H2O (3) have been synthesized from a new 1,3,5-triazine derivative ligand and copper salts. The molecular structures of 1, 2 and 3 have been established by single-crystal X-ray diffraction studies. The UV/vis, IR spectra, fluorescence and TG analysis are also discussed.Figure optionsDownload as PowerPoint slide