Chinese Journal of Chemistry

Cover image for Vol. 32 Issue 3

Early View (Online Version of Record published before inclusion in an issue)

Editors: Guozhen Ji, Shengming Ma

Online ISSN: 1614-7065

Associated Title(s): Chemistry - A European Journal, Chemistry – An Asian Journal, Israel Journal of Chemistry, The Chemical Record

VIEW

  1. 1 - 24
  1. Full Papers

    1. New Soluble Near-Infrared Dyes Based on Terrylene Diimides with Four Aromatic Heterocycles

      Huimin Wei, Nan Jiang, Nan Zhao, Ying Zhang and Baoxiang Gao

      Article first published online: 22 APR 2014 | DOI: 10.1002/cjoc.201400175

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      Two soluble NIR dyes based on terrylene diimides were synthesized by the introduction of aromatic heterocycles substituents on the bay region. The effects of the substituted groups on the optical and electrochemical properties were further investigated.

    2. Synthesis of (±)-Bakuchiol via a Pot-Economy Approach

      Meng-Yuan Huang, Long Chen, Luoxi Li, Xueshun Jia and Ran Hong

      Article first published online: 22 APR 2014 | DOI: 10.1002/cjoc.201400160

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    3. Computational Investigations about the Effects of Hetero-molecular Aggregation on Bioactivities: a Case of Neonicotinoids and Water

      Shuang Xia, Jiagao Cheng, Yue Feng, Xusheng Shao, Haibin Luo, Zhiping Xu, Xiaoyong Xu and Zhong Li

      Article first published online: 22 APR 2014 | DOI: 10.1002/cjoc.201400112

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      QSAR and pharmacophore modeling investigations were applied on 19 neonicotinoids, as well as their aggregates with water. The aggregate-based CoMSIA, PHASE and linear QSAR models presented better statistical significance and predictabilities than the monomer ones, which indicated that the bioactivities correlated with the aggregate properties and the hydrogen bonds relating to water-bridge of the active site.

  2. Communications

    1. Preparation of Durable Emitter of Electrospray Mass Spectrometry by Covalently Coating the Fused-Silica Capillary Tip with Carbon-Nanotube Sol-Gel Composite Material

      Hanzhi Zhang, Chao Liu, Xuepei Zhang and Jingwu Kang

      Article first published online: 22 APR 2014 | DOI: 10.1002/cjoc.201400148

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      An approach for the preparation of emitter of ESI MS is developed. The prepared emitters are durable and able to produce very stable MS signals.

  3. Full Papers

    1. Supramolecular Nanofibers/Hydrogels of the Conjugates of Nucleobase, Saccharide, and Amino Acids

      Dongdong Wu, Xuewen Du, Junfeng Shi, Jie Zhou and Bing Xu

      Article first published online: 22 APR 2014 | DOI: 10.1002/cjoc.201400092

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      We explored three new hydrogelators based on the conjugates of three naturally occurring biological building blocks: nucleobase, saccharide, and amino acids. Being synthesized via a facile solid phase peptide synthesis route, the hydrogelators self-assemble in water to afford supramolecular nanofibers and hydrogels. The hydrogels are characterized by transmission electron microscopy, oscillation rheometry and circular dichroism. These hydrogelators also exhibit excellent cell-compatibility.

    2. Ethynylene-Linked Oligomers Based on Benzodithiophene: Synthesis and Photoelectric Properties

      Songyang Jiang, Yuwen Ma, Yingyi Wang, Chengyun Wang and Yongjia Shen

      Article first published online: 22 APR 2014 | DOI: 10.1002/cjoc.201400079

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      Two oligomers based on benzodithiophene with different structures and energy levels.

    3. An [Fe-Fe]-Hydrogenase Mimic Immobilized on MCM-41 for the Photochemical Production of Hydrogen in Pure Water

      Wen Wang, Tianjun Yu, Yi Zeng, Jinping Chen and Yi Li

      Article first published online: 22 APR 2014 | DOI: 10.1002/cjoc.201400083

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      Hy@MCM-41, constructed by a [Fe-Fe]-hydrogenase mimic (Hy) immobilized on K+-exchanged molecular sieve K-MCM-41, was applied to the light-induced hydrogen production in pure water with [Ir(ppy)2bpy]Cl and triethylamine as the photosensitizer and the sacrificial electron donor, respectively, exhibiting good stability and catalytic activity.

  4. Notes

    1. Enatioselective Chalcogeno-Baylis-Hillman Reaction of Arylaldehydes with MVK and Acrylates Catalyzed by Chiral Thiepin-TiCl4 Complex

      Yan Yin, Guofeng Sun, Heng Zhang, Hong Zhou and Fanhong Wu

      Article first published online: 22 APR 2014 | DOI: 10.1002/cjoc.201400077

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      Enatioselective Chalcogeno-Baylis-Hillman reactions between benzaldehydes and acrylates were investigated in the presence of chiral thiepin-Lewis acid complex. Finally, up to 64% ee was achieved in the presence of 0.2 equiv. of (S)-thiepin at 20°C.

  5. Full Papers

    1. SalenZn-bridged D-π-A Dyes For Dye-Sensitized Solar Cells

      Yongjian Jia, Faliang Gou, Ran Fang, Huanwang Jing and Zhenping Zhu

      Article first published online: 22 APR 2014 | DOI: 10.1002/cjoc.201300924

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      A series of SalenZn based dyes have been designed and synthesized for dye-sensitized solar cells. The efficiency of DSSCs augments evidently along with the increased tail length of the alkyl substituents. It is also found that the dye owning bis-carboxyl groups induces a remarkable enhancement of the electron injection efficiency and generates higher electron density and voltage.

    2. High-Performance Cobalt Selenide and Nickel Selenide Nanocomposite Counter Electrode for Both Iodide/Triiodide and Cobalt(II/III) Redox Couples in Dye-Sensitized Solar Cells

      Zaiwei Wang, Hongxia Xu, Zhongyi Zhang, Xinhong Zhou, Shuping Pang and Guanglei Cui

      Article first published online: 22 APR 2014 | DOI: 10.1002/cjoc.201400003

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      The Co0.85Se/Ni0.85Se based dye-sensitized solar cell yielded comparable energy conversion efficiency to that of Pt and Co0.85Se for iodide/triiodide electrolyte. Moreover, for cobalt(II/III) electrolyte, the Co0.85Se/Ni0.85Se based dye-sensitized solar cell performed significantly improved efficiency compared to that of Pt and Co0.85Se.

    3. [2]Pseudorotaxanes Based on Naphtho-21-crown-7 and Secondary Dialkylammonium Salts: Remarkably Improved Association Constants Among Four Threaded Structures

      Qizhong Zhou, Yan Luo, Huajiang Jiang, Yuyuan Ye, Quan Zhang, Guoliang Dai and Rener Chen

      Article first published online: 22 APR 2014 | DOI: 10.1002/cjoc.201400049

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      This research article is focused on the recognition interaction of a new host naphtho-21-crown-7 and four secondary dialkylammonium salts. In acetone, the host can effectively recognize secondary dialkylammonium salts to form 1:1 host-guest complexes which belong to slow-exchange systems.

    4. Manganese(III) Salen Complex Immobilized on Fe3O4 Magnetic Nanoparticles: The Efficient, Green and Reusable Nanocatalyst

      Seyed Mohsen Sadeghzadeh, Faeze Daneshfar and Maryam Malekzadeh

      Article first published online: 4 APR 2014 | DOI: 10.1002/cjoc.201400007

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      Synthesis of benzopyranopyrimidines from salicylic aldehydes, malononitrile, and amine in the presence of Fe3O4\SiO2\Salen\Mn MNPs.

  6. Notes

    1. An Efficient and Simple Method for Stereoselective Synthesis of N-Substituted Iminosugars from D-Xylose Derivative

      Jichao Zhang, Wen Yuan, Xiaofeng Ma, Haibo Wang and Huawu Shao

      Article first published online: 4 APR 2014 | DOI: 10.1002/cjoc.201400070

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    2. Self-Assembly of Chiral Nano-bowl from Chiral Pd-complex Building Corners and 4,7-Phenanthroline Linkers

      Lina Yu, Xuanfeng Jiang and Shuyan Yu

      Article first published online: 4 APR 2014 | DOI: 10.1002/cjoc.201400085

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      A chiral [M3L3]6+-type metallo-nanobowl was constructed from cis-protected mono-palladium complexes as chiral corners and 4,7-phenanthroline ligand (L) as linkers by metal-directed self-assembly in aqueous media.

  7. Communications

    1. Sidearm as a Control in the Asymmetric Ring Opening Reaction of Donor-Acceptor Cyclopropane

      Qikai Kang, Lijia Wang, Zhongbo Zheng, Junfang Li and Yong Tang

      Article first published online: 4 APR 2014 | DOI: 10.1002/cjoc.201400053

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      A new type of trisoxazoline and bisthiazoline based ligands have been developed, which are absent of chiral motif on the parent skeleton and contain a chiral backbone on sidearm. The ligands promote the amine nucleophilic ring opening reaction of 1,1-cyclopropane diesters smoothly, furnishing the γ-amino acid derivatives in high yield with moderate to good enantioselectivity.

  8. Full Papers

    1. Photochemical Studies on Bicyclo[2.1.1]hexyl Derivatives: Chemical Behavior and Asymmetric Induction

      Manling Ma, Feixue Xue, Chao Yang and Wujiong Xia

      Article first published online: 4 APR 2014 | DOI: 10.1002/cjoc.201300893

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      Bicyclo[2.1.1]hexanyl derivatives were synthesized and their photochemical behaviour was investigated in acetonitrile solution.

    2. Decomposition of 2-Mercaptoethyl O-Ester: SN2 Displacement or Acyl Transfer? A Theoretical Study

      Shenshen Zhang, Chenze Qi and Chen Wang

      Article first published online: 4 APR 2014 | DOI: 10.1002/cjoc.201300874

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      For the decomposition of 2-mercaptoethyl O-ester, the SN2 displacement mechanism is much favored over the N-to-S acyl transfer mechanism. If the thiol group is replaced by an amino group, the N-to-N acyl transfer mechanism is more favored than the SN2 displacement mechanism.

    3. New Lignans from the Leaves and Stems of Schisandra chinensis and Their Anti-HIV-1 Activities

      Yiming Shi, Weimao Zhong, Huan Chen, Ruirui Wang, Shanzhai Shang, Chengqin Liang, Zhonghua Gao, Yongtang Zheng, Weilie Xiao and Handong Sun

      Article first published online: 13 MAR 2014 | DOI: 10.1002/cjoc.201400001

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      Six new lignans were isolated from the leaves and stems of Schisandra chinensis. The structures of the new compounds were established on the basis of spectroscopic methods including 1D- and 2D-NMR techniques and CD experiments. All the new compounds showed anti-HIV-1 activities with EC50 values in the range 17.89–138.23 µg/mL.

    4. Broadband Antireflective Superhydrophilic Thin Films with Outstanding Mechanical Stability on Glass Substrates

      Lin Yao and Junhui He

      Article first published online: 13 MAR 2014 | DOI: 10.1002/cjoc.201400022

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      A facile approach was developed to fabricate visible/near-infrared antireflective (AR), superhydrophilic and anti-fogging thin films on glass substrates.

    5. Theoretical Investigation on Structures, Stabilities, and Hydrolysis Reactions of Small RuO2 Nanoclusters

      Hao Dong, Zhonghua Zan and Xin Zhou

      Article first published online: 13 MAR 2014 | DOI: 10.1002/cjoc.201300912

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      The calculated results show that H2O can be more easily split on the cationic ruthenium oxide clusters than on the neutral clusters.

  9. Communications

    1. Photo-Induced Water Oxidation Based on a Mononuclear Cobalt(II) Complex

      Hongyan Wang, Yongbin Lu, Edgar Mijangos and Anders Thapper

      Article first published online: 17 FEB 2014 | DOI: 10.1002/cjoc.201300856

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      CoCl2·6H2O reacting with TPA (tris(2-pyridylmethyl)amine) in CH3CN can smoothly convert into the mononuclear cobalt(II) complex [Co(TPA)Cl]Cl, which can act as an efficient catalyst for photo-induced water oxidation assisted by a photosensitizer and an electron acceptor.

  10. Full Papers

    1. One-Pot Hydrothermal Synthesis and Photocatalytic Hydrogen Evolution of Pyrochlore Type K2Nb2O6

      Jingjing Wu, Chao Zhou, Yufei Zhao, Lu Shang, Tong Bian, Lei Shao, Feng Shi, Li-Zhu Wu, Chen-Ho Tung and Tierui Zhang

      Article first published online: 17 FEB 2014 | DOI: 10.1002/cjoc.201300817

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      Octahedral-shaped K2Nb2O6 with pyrochlore structure prepared by a facile and eco-friendly one-pot hydrothermal method showed high photocatalytic H2 production under UV light irradiation.

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