Self-assembly of a novel one-dimensional zigzag coordination polymer

Reaction of anhydrous NiBr2 with pyrazine and disodium terephthalate in the presence of water results in the formation of a one-dimensional (1D) coord ination polymer [Ni(pyrazine)(2)(H2O)(4)] (terephthalate) 1 which demonstra tes a linear zigzag coordination pattern running along the crystallographic c-axis. The title compound crystallizes in the monoclinic space group C2/c with a = 16.833(2), b = 9.173(1), c = 11.107(1) Angstrom, beta = 119.373(2 )degrees, and D-c = 1.667 for Z = 4. Final refinement based upon 4345 obser ved reflections led to a final R value of 0.052 for the polymeric product. The included terephthalate anion participates in eight O-H ... O hydrogen b onds to coordinated water molecules.