Synthesis,Crystal Structures and Fluorescence of Zn(II) Complexes with Schiff Base

Zinc complexes Zn(Salicylidene-aniline)2(1) and Zn(Salicylidene-p-methylaniline)2(2) have been synthesized and characterized by X-ray diffraction method.Complex 1 crystallizes in the triclinic space group P1 with unit cell parameters of a=0.949 5(2) nm,b=1.075 8(2) nm,c=1.234 3(3) nm,α=68.318(3)°,β=67.882(3)°,γ= 78.316(3)°,V=1.082 4(4) nm3,Z=2,Dc=1.405 Mg·m-3,F(000)=472,μ=1.160 mm-1.Complex 2 crystallizes in the monoclinic space group C2/c with unit cell parameters of a=2.184 5(5) nm,b=0.879 05(19) nm,c=1.198 8(3) nm,β=96.563(3)°,V=2.287 0(9) nm3,Z=4,Dc=1.411 Mg·m-3,F(400)=1 008,μ=1.102 mm-1.From the fluorescence spectra of complexes 1 and 2 in CH3OH and C2H5OH,one can see that these complexes are photoluminescent with the emission peaks corresponding to n-π* transition of metal-perturbed intraligand,respectively.