A NEW 2-DIMENSIONAL ALKOXYACETATE OF ZINC - STRUCTURE OF -ACETATO-MU-[ETHANE-1,2-OLATO(-1)]-DIACETATODIZINC

The title compound crystallizes in the monoclinic system with the spac e group P2(1)/n (No. 14). Crystal data: a = 9.794(3) Angstrom, b = 8.7 65(2) Angstrom, c = 15.280(3) Angstrom, beta = 98.38(2)degrees, V = 12 98(4) Angstrom(3), Z = 4, d(calc) = 1.89 g . cm(-3). The structure was solved from 1689 reflections with (F-o)(2) > 2 sigma(F-o)(2). The ref inement converged to final indexes R and R-w, respectively equal to 0. 0289 and 0.0309. The compound has a layered structure. The asymmetric unit contains a binuclear complex built up from two zinc atoms linked together through one acetate and one ethane-1,2-olato(-1) ions. The bi dimensional character results from the linking of the dimeric complexe s through acetate groups. Each complex is bonded to four other ones in a plane parallel to (001). Cohesion between nets is week since it is allowed by van der Waals forces only.