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

Eight organic-inorganic hybrid salts [(HL1)(SbCl₄)] <b>(1)</b> (L1 = N,N-dimethylbenzylamine), [(HL2)₂(ZnCl₄)] <b>(2)</b> (L2 = 4-chlorobenzylamine), [(HL2)(L2)(CuCl₃)(H₂O)₂] (<b>3)</b>, [(HL3)₂(Sb₂OCl₆)] (<b>4)</b> (L3 = quinoline), [(HL4)₄(Bi₂Cl₁₀)] (<b>5)</b> (L4 = 2-methylquinoline), [(HL5)(SbCl₄)] (<b>6)</b> (L5 = 5,7-dimethyl-1,8-naphthyridine-2-amine), [(H₂L6)(SbCl₅)] (<b>7)</b> (L6 = 3,6-bis(imidazol-1-yl)pyridazine) and [(H₂L7)₂(CuBr₄)₂] · 7H₂O (<b>8)</b> (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 <b>3</b> and <b>8</b>. Extensive intermolecular interactions have been used in the self-assembly of diverse motifs, ranging from strong N-H···X (X = Br, Cl), N-H···O, N-H···N, O-H···O, O-H···Br H-bonds to weak CH₂···O, CH₃-Cl/CH₂-Cl/CH-Cl, Cl-Cl, O-Br, CH₃-π, CH₂-π, Cl-π and π-π 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.