Synthesis and structure of the first three-leg ladder of coordination polymer: {Zn3(Ac)4(4,4 prime -bpy)3 [N(CN)2]2}n

The coordination polymer {Zn3(Ac)4(4,4 prime -bpy)3 [N(CN)2]2}n is prepared and characterized by X-ray diffraction. It is an unique three-leg molecular ladder. Crystal data: {Zn3(Ac)4(4,4 prime -bpy)3 [N(CN)2]2}n, monoclinic, space group C2/c, a = 21.603 4(13), b = 11.456 6(7), c = 17.798 2(12)A, ?? = 104.245(4)??, V = 4 269.6(5)A3, Z = 4, Dc = 1.607 Mg/m3, ?? = 1.741cm-1, R1 = 0.050 6 and wR2 = 0.087 7.Zn(II) atoms are located at the crosspoint of the 'rungs' and 'rails'. Each ZnII atom located at the side rails has a trigonal bipyramid environment. The ZnII(2) atom located at the crosspoint of the ladder displays octahedral coordination.EI02271-2723