1,4-Bis(2-salicylideneaminoethyl)piperazine, a Sexidentate Binucleating Ligand

Article abstract of DOI:10.1107/S0567740882002829

C22H28N4O2, M_r = 380, monoclinic, P2₁/a, a = 13.328(3), b = 11.654(2), c = 6.384(2) Angstroem, β = 94.02(1)^o, V = 989.2 Angstroem³, D_x = 1.141 Mg m^-3, Z = 2.The structure was solved by direct methods and refined to R = 0.048 for 956 observed reflections.The molecules lie on crystallographic inversion centers; the piperazine ring has the chair conformation.Intermolecular H bonds (2.589 Angstroem) between O and N are present.