Chinese Journal of Chemistry

Cover image for Vol. 32 Issue 12

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

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  1. 1 - 24
  1. Full Papers

    1. Towards Reaction Control: An Expeditious Access to Racemic 5-Substituted Tetramates and 5-Substituted Tetramic Acids from Malimides

      Pei-Qiang Huang, Wei Ou and Jian-Liang Ye

      Article first published online: 12 DEC 2014 | DOI: 10.1002/cjoc.201400762

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      A versatile and divergent two-step transformation of malimides to racemic tetramates and tetramic acids is described. The method consists of Grignard reagent addition with malimides, and concentrated HCl-promoted chemoselective transformations of the latter.

    2. Thermal and pH Dual Responsive Copolymer and Silver Nanoparticle Composite for Catalytic Application

      Luqman Ali Shah, Wulian Chen, Mohammad Siddiq, Jianhua Hu, Angang Dong and Dong Yang

      Article first published online: 12 DEC 2014 | DOI: 10.1002/cjoc.201400751

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      Thermal and pH dual responsive P(NIPAM-co-VI) copolymer was used as carriers to load Ag nanoparticles for the first time. The nanoparticles could be stably dispersed at all pH values, and were favorable to be used as a catalyst at a wide pH range, but more efficient at low pH.

    3. Preparation of Thermosensitive Hollow Imprinted Microspheres via Combining Distillation Precipitation Polymerization and Thiol-ene Click Chemistry

      Cong Guo, Bing Wang and Juanjuan Shan

      Article first published online: 12 DEC 2014 | DOI: 10.1002/cjoc.201400693

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      The thermosensitive hollow imprinted microspheres were prepared via combining distillation precipitation polymerization and thiol-ene click chemistry. The microspheres showed excellent temperature-sensitive and controlled release properties in aqueous.

    4. Combination of Solid-Phase Micro-Extraction and Direct Analysis in Real Time-Fourier Transform Ion Cyclotron Resonance Mass Spectrometry for Sensitive and Rapid Analysis of 15 Phthalate Plasticizers in Beverages

      Mengxi Wu, Haoyang Wang, Guoqing Dong, Brian D. Musselman, Charles C. Liu and Yinlong Guo

      Article first published online: 9 DEC 2014 | DOI: 10.1002/cjoc.201400564

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      A method for rapid identification and quantification of 15 phthalate plasticizers in beverages was developed. By a combined solid-phase micro-extraction (SPME) and direct analysis in real time mass spectrometry (DART-MS) approach, phthalates at sub-ng·mL−1 levels can be qualitatively and quantitatively analyzed in a short time. The use of ultrahigh-resolving power and the accurate mass measurement capacity naturally provided by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) minimizes the matrix interferences and thus enables the evaluation of phthalates in a complex matrix without extensive sample handlings or preparations. This rapid and easy-to-use SPME-DART-FT-ICR-MS method provided a relatively high-throughput and powerful analytical approach for quick testing and screening phthalates in beverages and water samples to ensure food safety.

    5. A Convenient Preparation of Fluorinating Reagent F-TEDA Bearing Bisphenylsulfonylimide Counterion and Its Fluorination to Oxindoles

      Wenhua Zhu, Xiaohui Hu, Fajie Wang, Xianjin Yang and Xinyan Wu

      Article first published online: 9 DEC 2014 | DOI: 10.1002/cjoc.201400680

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      A unique and practical route for the preparation of F-TEDA-N(SO2Ph)2, a kind of fluorinating reagent from NFSI was realized in high yield.

  2. Reviews

    1. Recent Progress in the Synthesis and Application of Saddle-shaped Cyclooctatetrathiophenes and Their Derivatives

      Chunmei Zhao, Li Xu, Yong Wang, Chunli Li and Hua Wang

      Article first published online: 9 DEC 2014 | DOI: 10.1002/cjoc.201400524

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      The synthesis and application of saddle-shaped cyclooctaterathiophenes (COThs) and their derivatives were reviewed.

    2. Supramolecular Assembly Models of siRNA Delivery Systems

      Jing Sun, Jiancheng Wang and Zhenjun Yang

      Article first published online: 9 DEC 2014 | DOI: 10.1002/cjoc.201400484

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    3. Smart Supramolecular Nanosystems for Bioimaging and Drug Delivery

      Peipei Yang, Lei Wang and Hao Wang

      Article first published online: 5 DEC 2014 | DOI: 10.1002/cjoc.201400531

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      The application of smart supramolecular nanosystems in biomedicine increases rapidly and offers promising prospects for disease diagnostics and therapeutics. Supramolecular nanosystems such as liposomes, micelles, organic nanoaggregates and metallic nanostructures etc. have been widely explored as diagnostic/therapeutic tools. Here, we review the recent advances in supramolecular nanosystems with different built-in reporters, e.g., fluorescent, magnetic and photoacoustic signals for bioimaging. In addition, the substantial progress of supramolecular nanosystems as drug delivery carriers for cancer therapy, including chemotherapy, photothermal and photodynamic therapies is also summarized.

    4. Site-specific Analysis of Amyloid Assemblies by Using Scanning Tunneling Microscopy

      Yue Yu, Yanlian Yang and Chen Wang

      Article first published online: 5 DEC 2014 | DOI: 10.1002/cjoc.201400631

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      Assembly structures of amyloid peptides at liquid-solid interface can be visualized by scanning tunneling microscopy with site-specific resolution. The STM analysis can provide valuable information on the folding mechanism of amyloid peptides. This review highlights the application of STM on site-specific analysis of amyloid peptides.

  3. Full Papers

    1. Coordination-Driven Terpyridyl Phosphine Pd(II) Gels

      Hongmiao Li, Xin Tan and Jianyong Zhang

      Article first published online: 7 NOV 2014 | DOI: 10.1002/cjoc.201400479

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      Coordination-driven phosphine-Pd(II) gels have been prepared from rigid bridging terpyridyl phosphines and Pd(II), which show high activity in the Suzuki-Miyaura coupling under ambient conditions.

    2. Benzimidazole-Linked Porous Polymers: Synthesis and Gas Sorption Properties

      Yi Cui, Yanchao Zhao, Tao Wang and Baohang Han

      Article first published online: 7 NOV 2014 | DOI: 10.1002/cjoc.201400494

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      A series of benzimidazole-linked porous polymers are obtained in one-pot synthesis without employing any catalyst or template. The polymers possess Brunauer-Emmett-Teller specific surface area value over 600 m2·g−1, showing hydrogen storage (up to 1.6 wt%, at 77 K and 1×105 Pa) and carbon dioxide capture (up to 12.6 wt%, at 273 K and 1×105 Pa) properties.

    3. A Rapid Synthesis of High Aspect Ratio Silver Nanowires for High-Performance Transparent Electrodes

      Tao Cheng, Yizhou Zhang, Wenyong Lai, Yao Chen and Wei Huang

      Article first published online: 7 NOV 2014 | DOI: 10.1002/cjoc.201400518

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      Silver nanowires with high aspect ratio and high purity were prepared via a rapid, simple and cost-effective polyol method. The aspect ratios of the silver nanowires were as high as ca. 1000 (average length 40 µm and some even as long as 80 µm, diameter 50–100 nm) via optimizing the reaction conditions. Transparent electrodes with superior optoelectronic performances (optical transmittance of 90%, sheet resistance of 23.2 Ω/□ and optical transmittance of 87%, sheet resistance of 19.7 Ω/□) comparable to commercial ITO were fabricated via spin coating the resulting silver nanowires onto the glass substrates. The high optoelectronic performances and the all-solution process of the as-prepared transparent electrodes render them rather promising for applications in cost-effective large-area optoelectronic devices.

    4. Self-Assembly of Schiff Base Organogelator with Enhanced Fluorescence Emission

      Jinxin Han, Jiefang Song, Zhenfang Hao, Haitao Yu and Jianrong Han

      Article first published online: 7 NOV 2014 | DOI: 10.1002/cjoc.201400519

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      The gelator molecules could self-assemble into nanofibers. Compared with the solution, the gel showed significantly enhanced fluorescence emission.

  4. Communications

    1. Synthesis of Microporous Nitrogen-Rich Covalent-Organic Framework and Its Application in CO2 Capture

      Qiang Gao, Linyi Bai, Xiaojing Zhang, Peng Wang, Peizhou Li, Yongfei Zeng, Ruqiang Zou and Yanli Zhao

      Article first published online: 3 NOV 2014 | DOI: 10.1002/cjoc.201400550

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  5. Reviews

    1. Recent Advances in Near-Infrared Absorption Nanomaterials as Photoacoustic Contrast Agents for Biomedical Imaging

      Juchen Zhang, Zengying Qiao, Peipei Yang, Jie Pan, Lei Wang and Hao Wang

      Article first published online: 3 NOV 2014 | DOI: 10.1002/cjoc.201400493

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      Photoacoustic imaging (PAI) is an emerging whole-body imaging modality offering high spatial resolution, deep penetration and high contrast in vivo. Signals for PAI are generated from contrast agents, where the pulsed laser-generated optical energy is transferred to acoustic emissions and detected by an ultrasound transducer. A great deal of research over the past ten years has shown that near-infrared absorption nanomaterials such as organic dye-based nanoparticles, semiconducting polymers, carbon-based nanomaterials, metallic nanomaterials and PA-enhanced hybrid nanocomposites are promising PA contrast agents, which can increase imaging resolution, contrast and even depth of detection.

    2. Two-dimensional (2D) Supramolecular Coordination at Liquid/Solid Interfaces Studied by Scanning Tunneling Microscopy

      Jing Xu and Qingdao Zeng

      Article first published online: 3 NOV 2014 | DOI: 10.1002/cjoc.201400499

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      In this article, 2D metal-ligand coordination at liquid/solid interfaces was studied by STM, which includes molecular recognitions, valinomycin switches, two-step coordinations and supramolecular springs.

  6. Communication

    1. Controllable Fabrication of Various Supramolecular Nanostructures Based on Nonamphiphilic Azobenzene Derivatives and Pillar[6]arene

      Shan Qin, Shuhan Xiong, Yang Han, Xiao-Yu Hu and Leyong Wang

      Article first published online: 8 OCT 2014 | DOI: 10.1002/cjoc.201400508

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      Various novel types of supramolecular nanostructures formed by nonamphiphilic azobenzene derivatives, G1 or G2 have been successful fabricated, where G2 is structurally similar with G1 but an extra phenoxy group is connected with the azobenzene motif. Micellar structures can be obtained from the self-assembly of G1, which further transformed to large-sized spindle structures; while nanorods can be initially formed by G2, which will gradually aggregate to form layered structures with much larger size. Moreover, it is found that upon addition of WP6, which can form inclusion-complex with G1 or G2, separately, the nonamphiphilic G1 and G2 thus converse to supramolecular amphiphiles WP6G1 and WP6G2, respectively. Consequently, both of the above WP6G1 and WP6G2 complexes can further assemble to form supramolecular binary vesicles, which will gradually transform to nanotubes (WP6G1) or well-ordered nanosheets (WP6G2).

  7. Accounts

    1. Hybrid Liquid Crystals from the Self-Assembly of Surfactant-Encapsulated Polyoxometalate Complexes

      Wen Li and Lixin Wu

      Article first published online: 8 OCT 2014 | DOI: 10.1002/cjoc.201400474

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      Nano-hybrid liquid crystals were designed and synthesized through attaching cationic surfactants on the surface of anionic polyoxometalate nano-clusters via ionic self-assembly strategy. We demonstrate the primary relationship between the nature of components and the liquid crystalline property. Emphases will be placed on the phase transition temperature and the self-assembly structures.

  8. Full Papers

    1. Visible-Light Photocatalytic Conversion of Carbon Dioxide into Methane Using Cu2O/TiO2 Hollow Nanospheres

      Feng Bi, Muhammad Fahad Ehsan, Wei Liu and Tao He

      Article first published online: 15 SEP 2014 | DOI: 10.1002/cjoc.201400476

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      The composite of Cu2O/TiO2 hollow nanospheres exhibit higher efficiency in photocatalytic reduction of CO2 into CH4 under visible-light irradiation than Cu2O because of the heterojunction formation in the composite and the improved catalyst stability.

    2. Sonochemical Synthesis of Graphene Oxide-Wrapped Gold Nanoparticles Hybrid Materials: Visible Light Photocatalytic Activity

      Yi Cui, Ding Zhou, Zhuyin Sui and Baohang Han

      Article first published online: 25 AUG 2014 | DOI: 10.1002/cjoc.201400309

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      Graphene oxide (GO)-wrapped gold nanoparticles (Au NPs) hybrid materials are constructed via one-pot sonochemical synthesis and self-assembly, using ethylene glycol as the reducing agent. The obtained materials possess enhanced photocatalytic activity under visible light irradiation, owing to the synergistic effect of the two components in the hybrid materials.

  9. Communications

    1. Modulating the Helicity of Sugar-Substituted Perylene Diimide Self-assemblies by Solvent Polarilities

      Qiang Guo, Junchao Wang, Lingyun Zhu and Zhixiang Wei

      Article first published online: 13 JUN 2014 | DOI: 10.1002/cjoc.201400218

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      The energy difference of systems in which molecules are coaxially arranged is small, leading to the phenomenon of the helical morphology of sugar-substituted perylene diimide being easily affected by the polarity of the solutions.

  10. Full Papers

    1. Carboxylatopillarene-Modified Reduced Graphene Oxides with High Water Dispersibility for Fluorescent Dye Sensing

      Ting Zhou, Hao Yu, Mingqiang Liu and Ying-Wei Yang

      Article first published online: 5 JUN 2014 | DOI: 10.1002/cjoc.201400238

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      Carboxylated pillar[5]arene (CP5) macrocycles were modified onto the surface of reduced graphene oxide (RGO) via covalent bonds to form new pillarene-functionalized RGO nanosheets, i.e., RGO-CP5, showing great potentials in the sensing and detection of analytes in aqueous solutions.

  11. Communications

    1. A BINOL Based Fluorescence Sensor for Distinction of D-Glucose

      Bangyu Xu, Jiting Hou, Kun Li, Zhengwei Lu and Xiaoqi Yu

      Article first published online: 5 JUN 2014 | DOI: 10.1002/cjoc.201400120

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      A BINOL-based fluorescent probe for glucose was presented, which could distinct D-glucose from other monosaccharides.

  12. Notes

    1. 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.

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