摘要:
New complex chlorides [ZnCl2(ODA)] (I) (ODA=oxydianiline, C12H12N2O) and [ZnCl2(H2O)(2)](Me(4)Pyz)(2) (II) (Me(4)Pyz = 2,3,5,6-tetramethylpyrazine) were synthesized and crystallographically characterized. Crystals of I are monoclinic, space group C2/c, a = 22.682(2) , b = 12.646(1) , c = 9.951(1) , beta = 93.23(2)A degrees, V = 2849.7(5) (3), rho(calc) = 1.569 g/cm(3), Z = 8. Structure I contains cyclic fragments consisting of two tetrahedral complexes (ZnCl2N2) and two coordinated bridging oxydianiline ligands. Crystals of II are monoclinic, space group P2(1)/c, a = 8.972(2) , b = 13.862(3) , c = 17.528(4) , beta = 101.72(3)A degrees, V = 2134.5(7) (3), rho(calc) = 1.384 g/cm(3), Z = 4. In structure II, supramolecular pseudo-metallocycles are formed due to formation of hydrogen bonds O(w)-HaEuro broken vertical bar N between coordinated water molecules and noncoordinated nitrogen atoms of tetramethylpyrazine molecules.