Synthesis and Crystal Structure of a New Heterotrinuclear Schiff-Base Zn–Gd Complex

A heterotrinuclear Zn–Gd complex [GdZn 2 L 2 (OAc) 2 ](CF 3 SO 3 ) ( 1 ) based on the salphen Schiff-base ligand bis(3-methoxysalicylidene)-1,2-phenylenediamine (H 2 L) was synthesized and characterized by single crystal X-ray diffraction. The structure was solved in the triclinic space group P − 1 with a = 9.4743(19), b = 16.333(3), c = 19.291(4) Å, α = 88.89(3), β = 78.16(2), γ = 76.69(3)°, V = 2842.0(10) Å 3 , Z = 2, D c = 1.610 g/cm 3 , F (000) = 1,386, R 1 = 0.0458, and wR 2 = 0.1239. In the solid state short intermolecular O···H–C hydrogen bonding, π–π stacking, and H···π interactions between neighboring [GdZn 2 L 2 (OAc) 2 ] + moieties generate a porous 3D-framework architecture with extended channels running along the a -axis. Graphical Abstract A heterotrinuclear Zn–Gd complex [GdZn 2 L 2 (OAc) 2 ](CF 3 SO 3 ) ( 1 ) based on the salphen Schiff-base ligand bis(3-methoxysalicylidene)-1,2-phenylenediamine (H 2 L) was synthesized and characterized by single crystal X-ray diffraction.