Synthesis and crystal structure of two trinuclear Nickel (II) complexes with N-benzoylsalicylhydrazide Ligand

The two trinuclear nickel(Ⅱ) complexes,[Ni3(Bzshz)2(C5H5N)6](C5H5N)·CH3OH·2H2O(1) and [Ni3(Bzshz)2(OH)2(C2H6O)2]·2(C3H7NO)·0.5C2H6O(2),where H3Bzshz is N-benzoylsalicylhydrazide,were prepared by reactions of Ni(OAc)2·4H2O with H3Bzshz in different solvents.The crystal structures of the two complexes were determined by X-ray diffraction analysis.Complex 1 crystallizes in monoclinic,space group P2(1)/n with a=2.198 9(2) nm,b=1.336 9(1) nm,c=2.503 4 nm,β=107.886(1)°,V=7.004(1) nm3,Z=4,R1=0.081 0,wR=0.215 4.Complex 1 is of trinuclear complex,in which three nickel(Ⅱ) atoms adopt octahedral/octahedral/square-planar coordination geometries,respectively.The molecule is quasi-linear with the Ni(1)…Ni(2)…Ni(3) angle of 169.84(3)°.Complex 2 belongs to triclinic system and P-1 space group with the crystallographic data:a=1.138 9(2) nm,b=1.368 2(2) nm,c=1.563 3(2) nm,α=67.190(2)°,β=83.953(2)°,γ=83.618(2)°,V=2.226 3(4) nm3,Z=2,R1=0.065 2,wR=0.188 0.Three nickel(Ⅱ) atoms exhibit alternating square-planar and octahedral geometries and are arranged in a strictly linear shape with an angle of 180° in complex 2.