Binuclear Complexes Containing Barbituric Derivatives as Ligands- Precursors for Supramolecular Structures. I. Synthesis and Spectral Properties of N,N’-bis-(5,5’-diethyl-barbituryl- 1-methyl)-piperazine (VEP) and its Copper(II) Complex
نویسندگان
چکیده
The new Mannich base VEP (N,N’-bis-(5,5’-diethyl-barbituryl-1-methyl)-piperazine), has been synthetized by condensation of veronal with formaldehyde and piperazine following a Mannich procedure. The new binuclear complex Cu2VEP(X)4·4H2O , X=ClO4where VEP stands for N,N’-bis-(5,5’-diethyl-barbituryl-1-methyl)-piperazine, were obtained by metal ligand direct synthesis. Tetrahedral geometry of the metal ion was preserved in solution as well in solid state. The binuclear complex contain VEP in a chair conformation.
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