Zhi-Rong Qu

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Tetrazole compounds have been studied for more than one hundred years and applied in various areas. Several years ago Sharpless and his co-workers reported an environmentally friendly process for the preparation of 5-substituted 1H-tetrazoles in water with zinc salt as catalysts. To reveal the exact role of the zinc salt in this reaction, a series of(More)
We report on a multi-technique investigation of the supramolecular organisation of N,N-diphenyl oxalic amide under differently dimensioned environments, namely three-dimensional (3D) in the bulk crystal, and in two dimensions on the Ag(111) surface as well as on the reconstructed Au(111) surface. With the help of X-ray structure analysis and scanning(More)
Supramolecular chemistry provides an original approach to nanoscience and nanotechnology by its intrinsically molecularlevel control of self-assembly processes. The spontaneous but controlled generation of complex supramolecular entities from suitably designed molecular components opens the way to the efficient—because extremely parallel—bottom-up(More)
The reactions of (S)-3-cyanophenylalanine with NaN(3) in the presence of H(2)O and Lewis acids (ZnCl(2) and CdCl(2)) afford two unprecedented 3D homochiral networks, mono[(S)-5-(3-tetrazoyl)-phenylalaninato]zinc(II) (1) and mono[(S)-5-(3-tetrazoyl)-phenylalaninato]cadmium(II) monoaqua(II) (2), respectively. The two compounds are isostructural with(More)
There are two mol-ecules in the asymmetric unit of the title compound, C20H14Br2N2. In the first, the dihedral angles between the mean plane of the benzimidazole group and those of the 4-bromo-benzyl and 4-chloro-phenyl groups are 50.72 (17) and 71.29 (16)°, respectively, while the corresponding angles in the second mol-ecule are 42.09 (16) and 89.05 (17)°.(More)
The title compound, C(16)H(10)N(2)O(8)·2C(3)H(7)NO, was synthesized by the reductive condensation reaction of 5-nitro-isophthalic acid in the presence of NaOH. The tetra-acid mol-ecule, which has a crystallographically imposed centre of symmetry, adopts an E configuration with respect to the azo group. In the crystal packing, mol-ecules are linked through(More)
The title coordination polymer, [Zn(C(8)H(4)N(4)O(2))(H(2)O)](n), was prepared by the hydro-thermal reaction of zinc nitrate and 2-(1H-tetra-zol-5-yl)benzoic acid. Two types of coordinated zinc cations exist in the structure. One is tetra-hedrally coordinated by two O and two N from two ligands, the other is octa-hedrally coordinated by two N and two O from(More)
Colorless block crystals of MOF (metal-organic framework) 1 and 2 were prepared in respective yields of 65 and 60% by thermal treatment of HQA (HQA=6-methoxyl-(8S,9R)-cinchonan-9-ol-3-carboxylic acid) with ZnBr(2) in either H(2)O or D(2)O and 2-butanol at 70 degrees C for 1-2 days. The MOFs 1 and 2 are isostructural, one-dimensional chains in which the(More)