Chinese Journal of Chemistry

Cover image for Vol. 34 Issue 7

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 - 25
  1. Full Papers

    1. Sulfonamide and Morpholine-Based Dual Chemosesor for Cu2+ and Ag+ in Different Solvent Media

      Fang Hu, Rui Li, Jinjian Wang, Luyan He, Xing Li, Jun Yin and Shenghua Liu

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600315

      Thumbnail image of graphical abstract

      In this study, compound 1 bearing sulfonamide and morpholine functionalities was synthesized. UV/vis absorption spectra and fluorescence spectra indicated that it displayed high sensitivity and selectivity for Cu2+ and Ag+ by switching solvent media.

  2. Communications

    1. Voltammetric Behavior of 1,4-Dimethoxypillar[m]arene[n]quinones

      Hina Saba, Jianggen An, Yong Yang, Min Xue and Yongsong Liu

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600282

      Thumbnail image of graphical abstract

      Voltammetric reduction of a series of 1,4-dimethoxypillar[m]arene[n]quinones (DMP[m]A[n]Qs) has been studied on glassy carbon electrode in acetonitrile. All the quinone units showed relative electron uptake behavior except 1,4-dimethoxypillar[5]quinones (DMP[5]Qs). The electrochemical behavior of the systems being investigated was obviously different when compared with linear analogues of quinones systems. This is attributed to the close proximity of redox-active sites as well as the delocalization of electrons on the aromatic rings.

  3. Full Papers

    1. Facile Synthesis of Naphtho[2,3-d]thiazoles, Naphtho[2,3-e][1,3,4]thiadiazines and Bis(naphtho[2,3-d]thiazolyl)copper(II) Derivatives from Heteroylthiosemicarbazides

      Alaa A. Hassan, Nasr K. Mohamed, Lamiaa E. Abd El-Haleem, Stefan Bräse and Martin Nieger

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600195

      Thumbnail image of graphical abstract

      A one step synthesis protocol for the conversion of heteroylthiosemicarbazides and 2,3-dichloro-1,4-naphthoquinone to naphtho[2,3-d]thiazoles, naphtho[2,3-e][1,3,4]thiadiazines as well as bis(naphtho[2,3-d]thiazolyl)copper(II) derivatives via Eschenmoser coupling reaction is described. The products were conclusively confirmed by single crystal X-ray analyses. A mechanism for the formation of the products is presented.

    2. Synergistic Enhancement of Electrocatalytic Activity toward Oxygen Reduction Reaction in Alkaline Electrolytes with Pentabasic (Fe, B, N, S, P)-Doped Reduced Graphene Oxide

      Wei Chen, Munil Sin, Ping-Jie Wei, Qian-Ling Zhang and Jin-Gang Liu

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600196

      Thumbnail image of graphical abstract

      A simple two-step doping method for the preparation of pentabasic (Fe, B, N, S, P)-doped rGO as an efficient ORR catalyst has been developed. Simultaneously doping appropriate amounts of Fe and B into the ternary doped N, S, P-rGO composite produced a synergistic effect for enhancing ORR activity, which endowed the prepared catalyst with even higher ORR performance than that of the commercial Pt/C catalyst in alkaline electrolytes.

    3. Synthesis of Unsymmetrical 1,3-Diynes via Pd/Cu-Catalyzed Cross-Coupling of Terminal Alkynes at Room Temperature

      Yashuai Liu, Ping Liu, Ningning Gu, Jianwei Xie, Yan Liu and Bin Dai

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600197

      Thumbnail image of graphical abstract
    4. Photoelectrochemical Behavior of Sn-Doped α-Fe2O3 Photoanode with Different Reducer

      Jiajia Cai, Yinglei Liu, Song Li, Meiqi Gao and Gaowu Qin

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600204

      Thumbnail image of graphical abstract

      The photoelectrochemical performance of hematite in electrolyte containing different reducing agent shows that the Fermi level pinning is mainly caused by water adsorption.

    5. Origin of d-π Interaction in Cobalt(II) Porphyrins under Synergistic Effects of Core Contraction and Axial Ligation: Implications for a Ligand Effect of Natural Distorted Tetrapyrrole

      Qiuhua Liu, Xi Zhang, Wennan Zeng, Jianxiu Wang and Zaichun Zhou

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600226

      Thumbnail image of graphical abstract

      The reactivity of the metalloporphyrins was closely related to their ligand effect at axial position. Our results indicate that strong axial ligation and core contraction both play important roles in electron transfer in redox catalysis involving Co(II) complexes.

    6. Porous CoF2 Spheres Synthesized by a One-Pot Solvothermal Method as High Capacity Cathode Materials for Lithium-Ion Batteries

      Qun Guan, Jianli Cheng, Xiaodong Li, Wei Ni and Bin Wang

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600229

      Thumbnail image of graphical abstract

      Porous CoF2 spheres are synthesized using a safe and inexpensive ammonium fluoride as the fluorine sources by a facile one-pot solvothermal method. The nature of the synthesis can avoid using corrosive fluorine sources (such as HF), and additional high-temperature thermal treatment. The electrochemical performance reveals that the porous CoF2 spheres can retain approximately 127.4 mA·h·g−1 after 30 cycles with a high Coulombic efficiency of 97%.

    7. Effect of Hydrogen Binding on Selective Recognition of Halide Anions

      Juan Du, Kang Kang, Jinchuan Hu, Lijun Mao, Lihua Yuan and Wen Feng

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600237

      Thumbnail image of graphical abstract

      The interplay of molecular rigidity enforced by interior or exterior hydrogen bonding and affinity for binding halide anions is described to demonstrate the effect of intramolecular hydrogen bonding in anion recognition process. To this end pyridine-2,6-dicarboxamides 1 and 2, and aromatic oligoamides 3 and 4 containing intramolecular hydrogen bonds were explored for their ability in associating with tetrabutylammonium halide (Cl, Br, and I). The trimeric amide 3, which adopts a crescent conformation as revealed by single-crystal X-ray diffraction analysis, strongly binds chloride anion with binding constant as high as 379 L·mol−1 in chloroform. This is more than 6 times greater than the binding constant for the control receptor 2 with a backbone that is only partially rigidified.

    8. A Novel CdS/g-C3N4 Composite Photocatalyst: Preparation, Characterization and Photocatalytic Performance with Different Reaction Solvents under Visible Light Irradiation

      Xiangju Ye, Xia Dai, Sugang Meng, Xianliang Fu and Shifu Chen

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600251

      Thumbnail image of graphical abstract

      CdS/graphtic carbon nitride (CdS/g-C3N4) hybrid materials were synthesized by thermal polymerization and hydrothermal methods using Cd(CH3COO)2·2H2O, thioacetamide, and melamine as precursors. Upon visible light irradiation, a coupled system toward the selective oxidation of benzyl alcohol to benzaldehyde and the reduction of nitrobenzene into aniline was realized by the as-synthesized photocatalyst. Results indicate that CdS/g-C3N4 sample exhibits an outstanding photocatalytic performance for selective oxidation of benzyl alcohol and reduction of nitrobenzene. Further study suggests that the selective oxidation of benzyl alcohol to benzaldehyde is induced by the photoexcited holes and the reduction of nitrobenzene into aniline is triggered by the photoexcited electrons. Additionally, the catalyst can be recycled several times without noticeable deactivation.

    9. One-Pot Synthesis of Hantzsch Pyridines via NH4I Promoted Condensation of 1,3-Dicarbonyl Compounds with DMSO and NH4OAc

      Liming Chang, Junyi Lai and Gaoqing Yuan

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600255

      Thumbnail image of graphical abstract

      A one-pot synthesis of Hantzsch pyridines was achieved through NH4I-promoted condensation of 1,3-dicarbonyl compounds with DMSO and NH4OAc, in which the C4 of the pyridine rings was derived from the decomposition of DMSO.

    10. A Novel Ratiometric Oxygen Sensor Based On a Sextuple Hydrogen-Bonding Self-Assembly Molecular Heterodimer

      Hui Zeng, Cheng Zhang, Yan Huang and Zhiyun Lu

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600257

      Thumbnail image of graphical abstract

      A novel hydrogen-bonding (HB) self-assembly heterodimer was synthesized. The inefficient energy transfer between the phosphor and fluorophore owing to the isolation by the rigid bulk hydrogen-bonding spacing moiety is advantageous to the simultaneous acquirement of ?uorescence/phosphorescence dual emission in neat-film state. Using this HB self-assembly heterodimer, neat-film-based ratiometric oxygen sensors showing strictly linear Stern-Volmer behavior in the full oxygen concentration range from 0 to 100 vol%, good photostability, good reversibility and rapid response/recovery times were demonstrated.

    11. Electronic Structure of Thiolate-bridged Diiron Complexes and a Single-electron Oxidation Reaction: A Combination of Experimental and Computational Studies

      Si Chen, Lun Luo, Yang Li, Dawei Yang, Jingping Qu and Yi Luo

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600262

      Thumbnail image of graphical abstract

      The oxidation of 1 to 2 is calculated to be a Fe2-based process (see the Figure above). The bdt is a dianion ligand in complex 1 and 2 rather than previously proposed monoanion radical.

  4. Communications

    1. Efficient Synthesis of Isoquinolines by AgNO3-Catalyzed Sequential Imination-Annulation of 2-Alkynyl Aldehydes with Ammonium Bicarbonate

      Yunhui Zhao, Mingjian Luo, Yubo Li, Xiong Liu, Zilong Tang, Keqin Deng and Gang Zhao

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600277

      Thumbnail image of graphical abstract

      An operationally simple approach for the tandem synthesis of isoquinolines by the reaction of o-alkynylaldehydes with ammonium bicarbonate via Ag-catalyzed 6-endo-dig ring closure is described. The reaction conditions and the scope of the reaction are examined, and a variety of substituted isoquinolines are prepared in moderate to excellent yields.

  5. Full Papers

    1. A Benzodithiophene-Based Fluorescence Probe for Rapid Detection of Fluoride Ion

      Wenbin Tan, Taohua Leng, Guoqiao Lai, Zhifang Li, Jiefei Wu, Yongjia Shen and Chengyun Wang

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600064

      Thumbnail image of graphical abstract

      A simple fluorescence probe for F was synthesized from benzodithiophene and trimethylsilylethyne.

    2. Conducting Graphene Decorated Li3V2(PO4)3/C for Lithium-Ion Battery Cathode with Superior Rate Capability and Cycling Stability

      Pan Zhou and Dawei He

      Version of Record online: 12 JUL 2016 | DOI: 10.1002/cjoc.201600187

      Thumbnail image of graphical abstract

      The graphene decorated Li3V2(PO4)3/C composite was prepared through a chemical route followed by a solid-state reaction. In this composite, the formed conductive network between the coated carbon and graphene facilitates fast electron migration and Li-ion diffusion throughout the nanosized Li3V2(PO4)3 particles.

  6. Reviews

    1. Recent Progress in the Application of Polyoxometalates for Dye-sensitized/Organic Solar Cells

      Tengling Ye, Junhai Wang, Guohua Dong, Yanxia Jiang, Chen Feng and Yulin Yang

      Version of Record online: 15 JUN 2016 | DOI: 10.1002/cjoc.201600231

      Thumbnail image of graphical abstract

      In this review, we summarized the recent development of various POM-based materials as a building block in dye-sensitized solar cells and organic solar cells. The working mechanism of POMs-based materials in solar cells, problems and the research trends in the near future are also discussed.

  7. Full Papers

    1. Selective Introduction of Carbazole and Diphenylamine into Spirofluorenexanthene Core for Different Phosphorescent Hosts

      Mingli Sun, Shouzhen Yue, Hongtao Cao, Changjin Ou, Yan Qian, Ting Wang, Ligang Chen, Yi Zhao and Wei Huang

      Version of Record online: 15 JUN 2016 | DOI: 10.1002/cjoc.201600203

      Thumbnail image of graphical abstract

      Built on the spiro[fluorene-9,9′-xanthene] (SFX) core and two frequently-used hole-transporting groups such as carbazole and diphenylamine, two SFX derivatives, namely SFXCz and SFXDPA, have been synthesized by one-step reaction for red, green and blue phosphorescent organic light-emitting devices (PHOLEDs).

    2. Synthesis and Biological Evaluation of Gem-Difluoromethylenated Statin Derivatives as Highly Potent HMG-CoA Reductase Inhibitors

      Zhao Zhao, Jiaxin Cui, Yan Yin, Heng Zhang, Yecheng Liu, Rui Zeng, Chao Fang, Zhenpeng Kai, Zhonghua Wang and Fanhong Wu

      Version of Record online: 15 JUN 2016 | DOI: 10.1002/cjoc.201600180

      Thumbnail image of graphical abstract

      HMG-CoA reductase inhibitors were widely used as lipid-lowing agents through effectively blocking the rate-limiting step of cholesterol biosynthesis. 8 analogs of Rosuvastatin were firstly prepared with different distance and functional group between the O5-hydroxyl group and terminal COOH group in the hydrophilic side-chain. In primary and secondary screening of the inhibitory activities against human HMG-CoA reductase, gem-difluoromethylenated derivatives exhibited more than 50% inhibition rate. Then 4 compounds with gem-difluoro group were further synthesized and evaluated in vitro, three compounds among them exhibited low single digital nmol/L IC50 values against HMG-CoA reductase. Molecular docking also well explained the observed special contribution of the gem-difluoro group.

    3. Preparation of 3D MnO2/Polyaniline/Graphene Hybrid Material via Interfacial Polymerization as High-Performance Supercapacitor Electrode

      Zheng Liu, Weiliang Chen, Xin Fan, Jianyang Yu and Yu Zhao

      Version of Record online: 15 JUN 2016 | DOI: 10.1002/cjoc.201600217

      Thumbnail image of graphical abstract

      MnO2/Polyaniline/graphene composite as a supercapacitor electrode material was synthesized through an interfacial polymerization approach in the interface of oil/water phase. The as-synthesized MPG is characterized by Infrared spectroscopy, XRD, XPS, SEM and TEM, and its electrochemical performance is measured by cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedance spectroscopy. The 3D nanostructure of MPG and loose nanorod structure of polyaniline (PANI) coated with round MnO2 pellets could be clearly observed. The maximum energy density of MPG is 45.4 Wh/kg (at a power density of 67.8 kW/kg) and the highest power density is 229.2 kW/kg (at an energy density of 25.7 Wh/kg). The capacitance retentions after 500 cycles at the scan rate of 5 mV/s for MGP composite and PANI/graphene are of 70.4% and 59.1%, respectively, and the capacitance values after 500 cycles are 158.4 F/g and 114.8 F/g, respectively. The improved performance of MPG is due to the 3D nanostructure, loose nanorod structure of PANI and stable support of graphene, which prevent the mechanical deformation effectively during the fast charge/discharge process and facilitate the diffusion of the electrolyte ions into the inner region of active materials. The composite material is very promising for the next generation of high-performance supercapacitors electrode.

    4. Undulated 2D Covalent Organic Frameworks Based on Bowl-Shaped Cyclotricatechylene

      Jingru Zhen, Sanyuan Ding, Wei Wang, Junmin Liu, Junliang Sun, Zhitang Huang and Qiyu Zheng

      Version of Record online: 19 MAY 2016 | DOI: 10.1002/cjoc.201600216

      Thumbnail image of graphical abstract

      Two undulated 2D covalent organic frameworks, CTC-COF-2 and CTC-COF-3, were constructed from bowl-shaped hexahydroxyl cyclotricatechylene (CTC). The introduction of pyrene into CTC-COF-3 makes it a potential semiconducting π-conjugated material.

    5. Synthesis and Characterization of Fluorescent Silica Nanoparticles Functionalized with Collagens of Variable Lengths

      Shanshan Zhang, Shenglong Ding, Yong Qian, Miaomiao Yuan, Jun Lu, Zaiman Liu and Jianxi Xiao

      Version of Record online: 19 MAY 2016 | DOI: 10.1002/cjoc.201600177

      Thumbnail image of graphical abstract

      Various types of collagen, conveniently produced by recombinant technology, can be used to modify fluorescent silica nanoparticles.

    6. Extraction of Rutin and Rhoifolin by Inorganic Borate Functionalized Magnetic Particles

      Yu Huang, Aidi Qi and Bao-Hang Han

      Version of Record online: 19 MAY 2016 | DOI: 10.1002/cjoc.201600215

      Thumbnail image of graphical abstract

      The inorganic borate functionalized magnetic particles are prepared and employed to specifically extract the active components of traditional Chinese medicines with cis-1,2 diol moieties, yielding a fast and practical extraction strategy that is important for the rutin or rhoifolin.

    7. A Bipolar and Small Singlet-Triplet Splitting Energy Host with Triplet Energy Lower Than a Blue Phosphor for Phosphorescent OLEDs in Panchromatic Range

      Chuanjun Wang, Gaowen Liu, Shaojie Liu, Xunlu Zhang, Changjin Ou, Lu Wang, Wei Sun, Baoxiu Mi, Juan Song and Zhiqiang Gao

      Version of Record online: 19 MAY 2016 | DOI: 10.1002/cjoc.201600147

      Thumbnail image of graphical abstract

      The figures show the OLED devices structure (low temperature fluorescence (Fluo) as well as phosphorescence (Phos) spectra of their common host inserted) and their panchromatic range EL properties.

    8. Nitration-Oximization of Styrene Derivatives with tert-Butyl Nitrite: Synthesis of α-Nitrooximes

      Napasawan Chumnanvej, Praewpan Katrun, Manat Pohmakotr, Vichai Reutrakul, Darunee Soorukram and Chutima Kuhakarn

      Version of Record online: 25 APR 2016 | DOI: 10.1002/cjoc.201600167

      Thumbnail image of graphical abstract

VIEW

  1. 1 - 25

SEARCH

SEARCH BY CITATION