THE STRUCTURAL CHARACTERIZATION OF THE NOVEL RIBBON SHEET, [CU2CL2(PYZ)](N) (PYZ=PYRAZINE)

The new copper(I) sheet compound [Cu2Cl2(pyz)](n) (pyz=pyrazine) (1) h as been synthesized and characterized. 1 crystallizes in the triclinic , space group <P(1)over bar> with a=6.885(2) Angstrom, b=7.5719(6) Ang strom, c=3.752(1) Angstrom, alpha=98.84(1)degrees, beta=92.27(2)degree s, gamma=106.55(2)degrees, U=184.55(7) Angstrom(3), and Z=1. Crystal s tructure consists of one-dimensional CuCln ladders and stacked pyz col umns. Infinite, zigzag ribbons are formed by Cu(I) ions and chlorides. The ladders extend along the c-direction, and are linked by pyz molec ules which coordinate to adjacent copper atoms, forming a two-dimensio nal sheet. The pyz molecules are stacked in the sheet and make a colum n along the c-axis. (C) 1998 Elsevier Science S.A.