Inclusion Compounds of Thiourea and Peralkylated Ammonium Salts. Part IV. Hydrogen-Bonded Host Lattices Built of Thiourea and Formate Ions

摘要: New inclusion complexes(C2H5)4N+HCO2-·(NH2)2CS·H2O (1),[(C2H5)4N]2+[(HCO2)2H]-(HCO2-)·2(NH2)2CS(2), (n-C3H7)4N+HCO2-·3(NH2)2CS·H2O (3)and (n-C4H9)4N+[(HCO2)2H]-·2(NH2)2CS(4) have been prepared and characterized by X-ray crystallography. Crystal data, MoKα radiation: 1, space group P21/c, a = 7.199(2), b 16.851(2),c 13.044(2) A, β 100.13(2)°, Z 4, RF 0.065 for 1011 observed data; 2, Pca21, 25.803(5), 7.190(2), c 17.394(2) RF= 0.073 1515 3, P21/n, 8.533(2), 9.423(5), 33.517(7) 90.44(2)°, 0.052 2521 Pbca, 17.389(3), 16.622(2),c 20.199(3) 8, 0.056for 1910 data. In both 1 2 the tetraethylammonium ions are sandwiched between puckered layers, which constructed cross-linkage of parallel arrangement infinite chains. each chain is composed twisted(thiourea–formate)2 tetramers bridged water molecules, whereas in it comprises an alternate thiourea dimers protonated formate trimers formed linkage hydrogen diformate ion, [(HCO2)2H]-, to ion via} C–-H·sO bond. compound 3 two independent molecules used construct hydrogen-bonded layer normal thec axis, remaining molecule, together with generate another that first one. Hydrogen bonding these types layers gives rise network containing channels running [100] direction, cations stacked regularly within column. crystal structure form zigzag ribbons cross-linked dimeric moieties [(HCO2)2H]- layer, the(n-C4H9)N+ occupy adjacent layers.