Wang Guo-wei

Nanjing University of Technology, Nan-ching, Jiangsu Sheng, China

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Publications (10)3.47 Total impact

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    ABSTRACT: The title compound, C12H20N42+·2BF4−, was prepared by the anion exchange of a dibromide ionic liquid with sodium tetrafluoroborate. The asymmetric unit contains one half of the imidazolium cation, which lies about an inversion centre at the mid-point of the central C—C bond of the linking butyl chain. The two planar imidazole rings (r.m.s. deviation = 0.0013 Å) are strictly parallel and separated by 2.625 (7) Å [vertical distance between the centroids of two imidazole rings], giving the molecule a stepped appearance. In the crystal structure, intermolecular C—H...F hydrogen bonds link the cations and anions, generating a three-dimensional network.
    Acta Crystallographica Section E Structure Reports Online 01/2010; · 0.35 Impact Factor
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    ABSTRACT: The title compound, C13H22N4O22+·2PF6−, was prepared by the anion exchange of the dibromide ionic liquid with potassium hexafluorophosphate. The two imidazole rings are each planar (r.m.s. deviations = 0.0016 and 0.0060 Å) and make a dihedral angle of 45.3 (18)°. Intramolecular O—H...F hydrogen bonds occur. Intermolecular C—H...F, O—H...O and C—H...O hydrogen bonds stabilize the crystal structure.
    Acta Crystallographica Section E Structure Reports Online 01/2010; · 0.35 Impact Factor
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    Zhuang Ling-hua, Wang Guo-wei
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    ABSTRACT: The title compound, C12H14O6, was prepared by the Williamson reaction of 1,4-dihydroxybenzene and methyl chloroacetate with phase-transfer catalysis. The compound lies on an inversion center. The structure is stabilized by weak C—H...π interactions.
    Acta Crystallographica Section E Structure Reports Online 01/2009; · 0.35 Impact Factor
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    ABSTRACT: The title compound, C9H11N3OS, was prepared by the reaction of 3-methoxybenzaldehyde and thiosemicarbazide. The benzylidene ring and the thiosemicarbazone fragment are slightly twisted, making a dihedral angle of 14.1 (1)°. A weak intramolecular N—H...N hydrogen bond may influence the conformation of the molecule. Intermolecular N—H...S hydrogen bonds build up a three-dimensional network.
    Acta Crystallographica Section E Structure Reports Online 01/2009; · 0.35 Impact Factor
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    ABSTRACT: The title compound, C9H11N3S, was prepared by reacting 4-methylbenzaldehyde with thiosemicarbazide. An intramolecular N—H...N hydrogen bond helps to establish the observed molecular conformation. The crystal packing is realized by intermolecular N—H...S hydrogen bonds.
    Acta Crystallographica Section E Structure Reports Online 01/2009; · 0.35 Impact Factor
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    Zhang Jian, Zhuang Ling-hua, Wang Guo-wei
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    ABSTRACT: The title compound, C9H9BrO2, prepared by the reaction of 4-methoxyacetophenone and cupric bromide, , is approximately planar (r.m.s. deviation 0.0008 Å). In the crystal, weak intermolecular aromatic C—H...Ocarbonyl hydrogen-bonding interactions result in a one-dimensional chain structure.
    Acta Crystallographica Section E Structure Reports Online 01/2009; · 0.35 Impact Factor
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    ABSTRACT: The asymmetric unit of the title compound, C11H14N2O2, contains one half-molecule as the central C atom of the molecule lies on a twofold rotation axis. In the crystal structure, weak intermolecular C—H...N hydrogen bonds link the molecules into zigzag chains along c.
    Acta Crystallographica Section E Structure Reports Online 01/2009; · 0.35 Impact Factor
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    Zhuang Ling-hua, Wang Guo-wei
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    ABSTRACT: The molecule of the title dicarbonyl compound, C13H20O6, possesses approximate local twofold symmetry. In the crystal, intermolecular C—H...O hydrogen bonds link the molecules, generating a chain structure.
    Acta Crystallographica Section E Structure Reports Online 01/2009; · 0.35 Impact Factor
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    ABSTRACT: The title compound, C20H20N2S2, was prepared by the reaction of suberic acid and 2-aminothiophenol under microwave irradiation. The molecule lies on an inversion center.
    Acta Crystallographica Section E Structure Reports Online 01/2009; · 0.35 Impact Factor
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    ABSTRACT: The asymmetric unit of the title compound, C11H14N2O4, contains one half-molecule; a twofold rotation axis passes through the central C atom. Intermolecular C—H...N hydrogen bonds link the molecules into a one-dimensional supramolecular structure.
    Acta Crystallographica Section E Structure Reports Online 01/2008; · 0.35 Impact Factor