Structurally characterized homo-trinuclear Zn-II and hetero-pentanuclear [ZnII4Ln(III)] complexes constructed from an octadentate bis(Salamo)-based ligand: Hirshfeld surfaces, fluorescence and catalytic properties

摘要

One homo-trinuclear 3d and five novel windmill-type hetero-pentanuclear 3d-4f complexes [Zn-3(L)-(OAc)(2)(H2O)]center dot CH2Cl2 (1), [Zn-4(L)(2)Sm(NO3)(2)(EtOH)(2)]NO3 center dot H2O center dot 2CHCl(3) (2), [Zn-4(L)(2)Eu(NO3)(2)(EtOH)(2)]NO3 center dot C2H5OH center dot 2CHCl(3) (3), [Zn-4(L)(2)Gd(NO3)(2)(EtOH)(2)]NO3 center dot C2H5OH center dot 2CHCl(3) (4), [Zn-4(L)(2)Tb(NO3)(2)(EtOH)(2)]NO3 center dot C2H5OH (5)and [Zn-4(L)(2)Dy(NO3)(2)(EtOH)(2)]NO3 center dot C2H5OH center dot 2CHCl(3) (6)were synthesized by the reactions of a new bis(Salamo)-based tetraoxime ligand (H4L)with Zn(OAc)(2)center dot 2H(2)O and Ln(NO3)(3)center dot 6H(2)O (Ln = Sm, Eu, Gd, Tb and Dy), respectively. The structures of complexes 1-6 were characterized via elemental analyses, FT-IR spectroscopy, UV-Vis spectroscopy and single crystal X-ray crystallography, and their fluorescence properties, catalytic activities and Hirshfeld surface analyses were studied.