Syntheses and structural characterization of eight inorganic-organic hybrid solids based on N-Bronsted bases and halometallates of Zn, Cu, Sb and Bi

Eight organic-inorganic hybrid salts [(HL1)(SbCl4)] (1) (L1 = N,N-dimethylbenzylamine), [(HL2)(2)(ZnCl4)] (2) (L2 = 4-chlorobenzylamine), [(HL2)(L2)(CuCl3)(H2O)(2)] (3), [(HL3)(2)(Sb2OCl6)] (4) (L3 = quinoline), [(HL4)(4)(Bi2Cl10)] (5) (L4 = 2-methylquinoline), [(HL5)(SbCl4)] (6) (L5 = 5,7-dimethyl-1,8-naphthyridine-2-amine), [(H(2)L6)(SbCl5)] (7) (L6 = 3,6-bis(imidazol-1-yl)pyridazine) and [(H(2)L7)(2)(CuBr4)(2)] center dot 7H(2)O (8) (L7 = di(2-benzimidazol-1-ylethyl)ether) were prepared and characterized by IR, XRD, EA and TG analysis. XRD analysis told that all of the complexes were 3 D net built from non-covalent bonds from the cations and the halometallates. The aryl rings of the cations in all of the compounds are essentially planar. The H2O also had crucial role in structure extension in 3 and 8. Extensive intermolecular interactions have been used in the self-assembly of diverse motifs, ranging from strong N-H center dot center dot center dot X (X = Br, Cl), N-H center dot center dot center dot O, N-H center dot center dot center dot N, O-H center dot center dot center dot O, O-H center dot center dot center dot Br H-bonds to weak CH2 center dot center dot center dot O, CH3-Cl/CH2-Cl/CH-Cl, Cl-Cl, O-Br, CH3-pi, CH2-pi, Cl-pi and pi-pi associations. The arrangements of the anions and cations in the solid are ruled not only by the size and symmetry of the cations, but also by the non-covalent bonds in the crystal structures.