Chinese Journal of Chemistry

Cover image for Vol. 30 Issue 9

Special Issue: 80th Anniversary of the Chinese Chemical Society

September, 2012

Volume 30, Issue 9

Pages 1913–2251

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Editorial
    4. Contents
    5. Review
    6. Communications
    7. Full Papers
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      Cover Picture: Non-covalently Functionalized Fluorescent Carbon Nanotubes: A Supramolecular Approach of Selective Zinc Ions Sensing in Living Cells (Chin. J. Chem. 9/2012) (page 1913)

      Miao Yu, Yuping Liu, Yong Chen, Ning Zhang and Yu Liu

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201290023

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      The cover picture shows supramolecular approach of cell permeability delivery and zinc sensing in living cells. Zinc is an essential element to life, which can affect some important biological processes such as gene transcription, neural signal transmission and others. So the zinc detection with supramolecular method in water and living cells has attracted increasing attention. The fluorescent cyclodextrin/carbon nanotube assemblies, which could be easily constructed through a general protocol, could be used as the highly selective fluorescent zinc probes in water and living cells, which will provide the new approach for the bottom-up approach to nanoscale fabrication and greatly increase their application in nanoscience and technology. More details are discussed in the article by Liu et al. on page 1948–1952.

  2. Editorial

    1. Top of page
    2. Cover Picture
    3. Editorial
    4. Contents
    5. Review
    6. Communications
    7. Full Papers
    1. You have free access to this content
  3. Contents

    1. Top of page
    2. Cover Picture
    3. Editorial
    4. Contents
    5. Review
    6. Communications
    7. Full Papers
  4. Review

    1. Top of page
    2. Cover Picture
    3. Editorial
    4. Contents
    5. Review
    6. Communications
    7. Full Papers
    1. Biomedical Effects and Nanosafety of Engineered Nanomaterials: Recent Progress (pages 1931–1947)

      Xiaofeng Wang, Motao Zhu and Jingyuan Li

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200662

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  5. Communications

    1. Top of page
    2. Cover Picture
    3. Editorial
    4. Contents
    5. Review
    6. Communications
    7. Full Papers
    1. Non-covalently Functionalized Fluorescent Carbon Nanotubes: A Supramolecular Approach of Selective Zinc Ions Sensing in Living Cells (pages 1948–1952)

      Miao Yu, Yuping Liu, Yong Chen, Ning Zhang and Yu Liu

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200543

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      The fluorescent cyclodextrin/carbon nanotube assemblies, which could be easily constructed through a general protocol, could be used as the highly selective fluorescent probes in water and living cells, which will provide the new approach for the bottom-up approach to nanoscale fabrication and greatly increase their application in nanoscience and technology.

    2. A Short and Flexible Synthetic Approach to the Naturally Occurring Racemic Neoclausenamide and Its Analogs (pages 1953–1956)

      Xijie Dai and Peiqiang Huang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200660

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      We report a racemic two-step entrance to the skeleton of neoclausenamide (8a) with all the four stereogenic centers established correctly and in excellent diastereoselectivities.

    3. Synthesis and Structure of Supramolecular Compound with Ethyl 2-(4-Aminophenoxy)acetate Based on 18-Crown-6 (pages 1957–1961)

      Wenxiang Wang, Suwen Sun and Rengen Xiong

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200807

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      Compound ethyl 2-(4-aminophenoxy)acetate (C10H13NO3) and its rotator-stator-like crown ether inclusion complex {[(C10H14NO3)·(18-crown-6)]+[PF6]} were synthesized and their crystal structures have been determined by X-ray crystallography. Temperature-dependent dielectric constants of the inclusion complex were also tested.

    4. DNA-Templated Silver Nanoclusters Formation at Gold Electrode Surface and Its Application to Hydrogen Peroxide Detection (pages 1962–1965)

      Yuanyuan Xu, Yangyang Chen, Nana Yang, Lizhou Sun and Genxi Li

      Version of Record online: 11 JUL 2012 | DOI: 10.1002/cjoc.201200267

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      A novel system to prepare inorganic nanoclusters at gold electrode surface with thiol-modified oligodeoxynucleotide consists of eighteen cytosine deoxyribonucleotides as template and NaBH4 as reducing agent, which may display high catalytic activity for the reduction of hydrogen peroxide.

    5. Electrodeposition of Prussian Blue Nanoparticles on Electrochemically Reduced Graphene Oxide and Synergistically Electrocatalytic Activity toward Guanine (pages 1966–1969)

      Tao Yang, Qian Guan, Suyan Ma, Qianhe Li and Kui Jiao

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200644

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      Graphene prompted the electrocatalytic ability of prussian blue (PB) towards the oxidation of guanine, via the redox shift between PB and prussian yellow (PY) in the potential range from 0.5 to 1.2 V, which has not been widely adopted in the PB based electrochemical sensors.

    6. Alternative Methylation for the Synthesis of (+)-Perophoramidine (pages 1970–1973)

      Yu Du, Haoxing Wu, Hao Song, Yong Qin and Dan Zhang

      Version of Record online: 1 JUN 2012 | DOI: 10.1002/cjoc.201200295

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  6. Full Papers

    1. Top of page
    2. Cover Picture
    3. Editorial
    4. Contents
    5. Review
    6. Communications
    7. Full Papers
    1. Mechanism of Imidazole-Promoted Ligation of Peptide Phenyl Esters (pages 1974–1979)

      Chen Wang and Lei Liu

      Version of Record online: 11 JUL 2012 | DOI: 10.1002/cjoc.201200337

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      Theoretical calculations successfully explain that for a sterically hindered C-terminal amino acid (e.g. proline), the imidazole-promoted phenyl ester ligation is more favorable than the conventional thiophenol-promoted native chemical ligation.

    2. Odd-Even Sequence Effect of Surface-Mediated Peptide Assemblies Observed by Scanning Tunneling Microscopy (pages 1987–1991)

      Yuanyuan Guo, Chenxuan Wang, Jingfei Hou, Aihua Yang, Xuemei Zhang, Yibing Wang, Min Zhang, Yanlian Yang and Chen Wang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200656

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      Odd-even effect is observed for assembly structures of PolyQ7 and PolyQ8 by STM, which could be associated with the adsorption conformations of the peptides.

    3. A Near-infrared Fluorescent Probe for Selective Simultaneous Detection of Fe2+ and Cl in Living Cells (pages 1992–1998)

      Ping Li, Haibin Xiao and Bo Tang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200652

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      A new Near-infrared fluorescent probe for simultaneous detection of Fe2+ and Cl has been developed, based on photoinduced electron transfer mechanism. Cyanine (Cy-SO3) is chosen as the fluorophore, and 4′-(aminomethylphenyl)-2,2′,6′,2′′-terpyridine (Tpy) is employed as Fe2+ receptor. The probe responds linearly and rapidly to [Fe2+] and [Cl] variations under physiological conditions, and exhibits excellent sensitivity and good photostability. The real-time imaging of cellular Fe2+ was achieved successfully in living HL-7702, HepG2, and RAW264.7 cells.

    4. Design, Synthesis, and Bioevaluation of Novel Strobilurin Derivatives (pages 1999–2008)

      Xiaolei Zhu, Fu Wang, Hui Li, Wenchao Yang, Qiong Chen and Guangfu Yang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200607

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      Strobilurins are one of the greatest discoveries in controlling agricultural fungus, due to the novel action mode, wide fungicidal spectrum, lower toxicity against mammalian cells, and environmentally benign characteristics. To discover new strobilurin analogues with higher fungicidal activity, a structural modification of compound 1 was carried out by the strategy of bioisosterism and evolutionally yielded a series of benzophenone derivatives 2a2j, among which compound 2j with a Ki value of 1.89 nmol/L was identified as the most promising inhibitor of porcine cytochrome bc1 complex.

    5. Facile Synthesis of Chiral Diphosphine-Containing Multiple Dendrimeric Catalysts for Enantioselective Hydrogenation (pages 2009–2015)

      Liwen Zhao, Ji Liu, Yu Feng, Yanmei He and Qinghua Fan

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200648

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      A new kind of codendrimers with multiple PyrPhos moieties in the periphery was synthesized via a liquid-phase organic synthesis strategy, and proved to be very effective in the Rh-catalyzed asymmetric hydrogenation of prochiral olefins.

    6. Synthesis, Crystal Structure and Photoluminescent Property of Metal-Organic Frameworks with Mixed Carboxylate and Imidazole-Containing Ligands (pages 2016–2022)

      Zhi Su, Jian Fan, Taka-aki Okamura and Weiyin Sun

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200715

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      Three new Zn(II) frameworks with 1,3,5-tris(1-imidazolyl)benzene (tib) and different carboxylate ligands of 2,6-pyridinedicarboxylic acid (H2PDC), 1,4-cyclohexanedicarboxylic acid (H2CHDC) and 1,3,5-benzenetriacetic acid (H3BTC) show binuclear, non-interpenetrated and 2-fold interpenetrated 3D framework structures, respectively.

    7. Cocaine Detection in Blood Serum Using Aptamer Biosensor on Gold Nanoparticles and Progressive Dilution (pages 2023–2028)

      Jing Ge, Zhaofang Liu and Xin Sheng Zhao

      Version of Record online: 11 JUL 2012 | DOI: 10.1002/cjoc.201200256

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      Aptamer biosensor for cocaine detection in serum by progressive dilution.

    8. Catalyst-Free Imidation of Allyl Sulfides with Chloramine-T and Subsequent [2,3]-Sigmatropic Rearrangement (pages 2029–2035)

      Yubo Jiang, Fanyang Mo, Di Qiu, Chunxiang Kuang, Yan Zhang and Jianbo Wang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200604

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    9. Palladium-Catalyzed Synthesis of Aromatic Sultones via Sulfonic Acid Group-Directed C[BOND]H Activation (pages 2041–2046)

      Fei Li, Taoshan Jiang, Haiting Cai and Guanwu Wang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200667

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      Simple arenes have been successfully utilized in the Pd-catalyzed C[BOND]H activation of arylsulfonic acids leading to aromatic sultones.

    10. Cu2+ Detection with Gold Nanoparticles by Patterning Colorimetric Strips on a Filter Membrane Assembled in a Microfluidic Chip (pages 2047–2051)

      Yingyi Liu, Jie Yu, Wenwen Chen, Dingbin Liu, Zhuo Wang and Xingyu Jiang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200655

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      We have developed a microfluidic chip for colorimetric Cu2+ detection. In this chip system, it is facile to do colorimetric Cu2+ detection based on Au NPs with a dynamic detection range from 0.75 to 50 µmol/L, consuming only 20 µL detection reagents and sample solution mixture. The result can be readout by naked eye and photographed by digital cameras.

    11. Effect of Molecular Weight and Processing Additive on the Performance of Low Bandgap Polymer Solar Cells (pages 2052–2058)

      Xiaoli Zhao, Haowei Tang, Dalei Yang, Hui Li, Wentao Xu, Li Yin and Xiaoniu Yang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200641

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      High molecular weight improves the performance of the device from 0.74% to 5.0%.

    12. Effect of SnO2-Sb2O5 Interlayer on Electrochemical Performances of a Ti-Substrate Lead Dioxide Electrode (pages 2059–2065)

      Haishen Kong, Weimin Huang, Haibo Lin, Haiyan Lu and Wenli Zhang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200627

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      The figure shows Nyqusit diagrams of (1) Ti/PbO2 and (2) Ti/SnO2-Sb2O5/PbO2 electrodes in the complex plane as a function of electrolysis time. (a1) 0 h, (b1) 6 h, (c1) 13.5 h, (d1) 14 h; (a2) 0 h, (b2) 10 h, (c2) 141 h, (d2) 142 h. From above experimental results, we deduce that the presence of the SnO2-Sb2O5 interlayer can reduce the Rf (resistance through the oxide layer) and Rct (charge transport resistance at the interface), which indicates that the conductivity of the electrode and electrochemical activity of oxygen evolution for the Ti/SnO2-Sb2O5/PbO2 electrode are higher than those of the Ti/PbO2 electrode.

    13. Synthesis and Pressure-induced Reversible Phase Transition of a Crystalline Solid Europium Germanate NaEuGeO4 (pages 2066–2072)

      Xinguang Zhao, Kai Wang, Tingting Yan, Yan Yan, Bo Zou, Jihong Yu and Ruren Xu

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200583

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      An alkali metal lanthanide germanate NaEuGeO4 was prepared under a mild hydrothermal condition. The in-situ photoluminescence spectroscopic measurement and the synchrotron X-ray diffraction analysis in a diamond anvil cell (DAC) under high pressure were performed to study the pressure-induced phase transition of NaEuGeO4 as well as changes of the luminescent properties of Eu3+ ions.

    14. Significant Promotion of Morphology in Fabricating Efficient Environment Protector (pages 2073–2078)

      Yu Zhou, Wenjuan Qian, Jing Yang, Shilu Zhou, Ying Wang and Jianhua Zhu

      Version of Record online: 14 AUG 2012 | DOI: 10.1002/cjoc.201200558

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      Owning to the strong promotion of 3D net-like micro-morphology, SBA-15 monolith can efficiently eliminate the phenols from environmental tobacco smoke (ETS).

    15. Dehydration of Carbohydrates to 5-Hydroxymethylfurfural in Ionic Liquids Catalyzed by Hexachlorotriphosphazene (pages 2079–2084)

      Jinliang Song, Binbin Zhang, Jinghua Shi, Jun Ma, Guanying Yang and Buxing Han

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200691

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      Highly efficient synthesis of 5-hydroxymethylfurfural (HMF) by dehydration of carbohydrates was catalyzed by hexachlorotriphosphazene (N3P3Cl6) in ionic liquids.

    16. Cucurbit[7]uril-Based Vesicles Formed by Self-assembly of Supramolecular Amphiphiles (pages 2085–2090)

      Jiaxi Li, Lipeng Zhou, Quan Luo, Yongguo Wang, Chunqiu Zhang, Wei Lu, Jiayun Xu and Junqiu Liu

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200603

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      Vesicles formed by self-assembled supramolecular amphiphilic molecules were obtained by direct self-assembly of cucurbit[7]uril-based host-guest superamphiphiles. The disassembly of vesicles can be realized by the addition of excess 1-adamantanamine hydrochloride. The vesicles act as ideal nanocapsule to encapsulate guest molecules within their hollow cavities and through guest competitive disassembly the vesicles can be used as a novel drug delivery carrier.

    17. Enhanced Ionization of Phosphatidylcholines during MALDI Mass Spectrometry Using DCTB as Matrix (pages 2091–2096)

      Ying Zhang and Haojie Lu

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200600

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      DCTB was shown to be an outstanding matrix for MALDI mass spectrometric analysis of PCs. With CsCl as an auxiliary reagent, PCs were sensitively profiled and characterized by MALDI-TOF MS with DCTB matrix.

    18. Mixed Rare-Earth Complexes of Eu(III) and Y(III) with Pyridine-2,4,6-tricarboxylic Acid and Their Photoluminescent Properties (pages 2097–2102)

      Hongsheng Wang, Xiaoqing Zhao, Mingli Liu, Wei Shi and Peng Cheng

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200635

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      A series of rare-earth luminescent complexes {[Eu(pta)(H2O)3]·H2O}n (1, H3pta=pyridine-2,4,6-tricarboxylic acid) and {[EuxY(1−x)(pta)(H2O)3]·H2O}n (210) have been synthesized, and the luminescent properties of complexes 110 were investigated. The results show that these complexes 210 can also display intense characteristic luminescence when part of Eu(III) ions in complex 1 are replaced by Y(III) ions, and the emission intensities of mixed rare-earth complexes 210 are the same or even higher than that of homometallic complex 1 with the deceasing Eu(III) ions.

    19. Highly Efficient Oxidative Cleavage of Carbon-Carbon Double Bond over meso-Tetraphenyl Cobalt Porphyrin Catalyst in the Presence of Molecular Oxygen (pages 2103–2108)

      Xiantai Zhou and Hongbing Ji

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200621

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      Highly efficient and selective carbon-carbon double bond aerobic cleavage of olefins catalyzed by metalloporphyrins was achieved, and CoTPP gave 2×104 h−1 TOF and 86% selectivity using styrene as model substrate.

    20. Perfectly Green Organocatalysis: Quaternary Ammonium Base Triggered Cyanosilylation of Aldehydes (pages 2109–2114)

      Yeqian Wen, Mengwei Liang, Yiming Wang, Weimin Ren and Xiaobing Lü

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200598

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      The zwitterionic intermediate generated from the reaction of triphenylphosphine with electron deficient acetylenic compounds was trapped by various NH acids. The synthesis resulted in a new class of highly functionalized heterocyclic compounds.

    21. Halloysite Nanotubes, a Multifunctional Nanovehicle for Anticancer Drug Delivery (pages 2115–2120)

      Mingyi Guo, Aifei Wang, Faheem Muhammad, Wenxiu Qi, Hao Ren, Yingjie Guo and Guangshan Zhu

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200657

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      Halloysite nanotubes (HNTs) were demonstrated as a platform to deliver anticancer drug (doxorubicin) into cancer cells. Folic acid and magnetite nanoparticles were successfully grafted onto HNTs via amide reaction whereas; the drug has been introduced by capitalizing electrostatic interaction between cationic drug and anionic exterior of HNTs, which eventually leads to pH responsive release.

    22. One-Pot Terpolymerization of CO2, Propylene Oxide and Lactide Using Rare-earth Ternary Catalyst (pages 2121–2125)

      Lin Gu, Yusheng Qin, Yonggang Gao, Xianhong Wang and Fosong Wang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200636

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      A convenient one-pot terpolymerization of CO2, propylene oxide (PO), and L-lactide (L-LA) was carried out in short polymerization time (10 h or shorter) to afford poly(propylene carbonate-lactide) using Y(CCl3COO)3-ZnEt2-glycerin rare-earth ternary catalyst. Addition of L-LA as comonomer improved the copolymerization yield significantly, and a low level of L-LA units in PPCLA was sufficient to improve the thermal and mechanical properties of PPC.

    23. Periphery-Hydrogenating Effects on the Unordinary 14 π-Electron Delocalized Circuits and Related Electronic Properties of Subporphyrazine Analogs: A Density Functional Theory Investigation (pages 2126–2130)

      Luyang Zhao, Dongdong Qi, Xue Cai and Jianzhuang Jiang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200643

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      Peripheral hydrogenation essentially changes the delocalized pattern from the common π1414 to limited π1314 or π1214 for subporphyrazine, and substantially weakens the aromaticity for both subporphyrazine and subphthalocyanine. The unstable delocalized circuit gives rise to a notable transformation of geometric configuration, frontier molecular orbital topology, and absorption spectral bands.

    24. Infrared Photodissociation Spectra of Mass-Selected Homoleptic Dinuclear Palladium Carbonyl Cluster Cations in the Gas Phase (pages 2131–2137)

      Jieming Cui, Xiaopeng Xing, Chaoxian Chi, Guanjun Wang, Zhipan Liu and Mingfei Zhou

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200595

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    25. RAFT Copolymerization of Glycidyl Methacrylate and N,N-Dimethylaminoethyl Methacrylate (pages 2138–2144)

      Jun Cao, Lifen Zhang, Xiangqiang Pan, Zhenping Cheng and Xiulin Zhu

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200625

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      Copolymerization of GMA and DMAEMA via RAFT method was firstly carried out. The epoxy group of the copolymers remained intact under the conditions of RAFT copolymerization and could be post-modified by ethylenediamine and then used as gene carrier.

    26. Open Tubular Microreactor with Enzyme Functionalized Microfluidic Channel for Amperometric Detection of Glucose (pages 2145–2150)

      Lei Zhang, Ping Qu, Jin Sheng, Jianping Lei and Huangxian Ju

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200725

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      A simple and efficient enzyme microreactor was designed for amperometric detection of glucose. The open tubular microreactor was composed of a polydimethylsilicone/glass hybrid device with three reservoirs, a cooling cave and a 6-cm capillary with a sampling fracture as microchannel. The microchannel was modified by thermal polymerization, followed by covalently attaching with glucose oxidase. The designed microreactor showed good sensitivity, rapid separation and acceptable stability and reproducibility, and was successfully used for quantitative determination of glucose in real sample.

    27. Suzuki Reactions in Water Catalyzed by an Active and Reusable PMO-Type Pd(II) Organometal Catalyst with Cage-Like Mesoporous Structure (pages 2151–2157)

      Fengxia Zhu and Hexing Li

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200597

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      A novel Pd(II) organometal catalyst with cage-like Ia3d cubic mesoporous structure and high surface area was prepared by co-condensation. In comparison with the corresponding catalyst with P6mm hexagonal mesoporous structure, the as-prepared catalyst exhibited higher activities in water-medium Suzuki coupling reactions. It showed comparable efficiencies with the Pd(PPh3)2Cl2 catalyst and could be easily recycled and reused for five times without significant loss of activity.

    28. Synthesis of Osmapyridiniums by [4+2] Cycloaddition Reaction between Osmium Alkenylcarbyne and Nitriles (pages 2158–2168)

      Bin Liu, Qianyi Zhao, Huijuan Wang, Jinxiang Chen, Xiaoyu Cao, Zexing Cao and Haiping Xia

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200650

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      A formal [4+2] cycloaddition reaction between osmium alkenylcarbyne and nitriles was used to provide metallapyridiniums. These metallapyridiniums can be readily transformed to other metallapyridiniums by ligand substitution reaction, thus expanding the scope of still rare heteroatom-containing aromatic metallacycles.

    29. Block and Hetero Ethyl Cellulose Graft Copolymers Synthesized via Sequent and One-pot ATRP and "Click" Reactions (pages 2169–2175)

      Qinmei Li, Hongliang Kang and Ruigang Liu

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200658

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      Ethyl cellulose graft copolymers with block and hetero side chains, ethyl cellulose graft (polystyrene-b-poly(ethylene glycol)) (EC-g-(PS-b-PEG)) and ethyl cellulose graft polystyrene and polyethylene glycol (EC-g-(PS-PEG)) were synthesized by ATRP and alkyne-azide "click" reactions and "one-pot" ATRP and "click" reactions, respectively.

    30. Synthesis, Structure of Zinc Complexes Containing Sulfonylated Binaphtholate Ligands and Their Catalytic Activities towards Ring-Opening Polymerization of Lactide and ε-Caprolactone (pages 2176–2182)

      Shuangliu Zhou, Yongyao Jiang, Tao Xie, Zhanshuan Wu, Linmin Zhou, Wenjing Xu, Lijun Zhang and Shaowu Wang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200613

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      The zinc complexes containing sulfonylated binaphtholate ligands were synthesized, and their catalytic activities for the ring opening polymerization of ε-caprolactone and D,L-lactide gave polymers with a high molecular weight and a narrow molecular weight distribution.

    31. Preparation of Multi-Metal Oxide Hollow Sphere Using Layered Double Hydroxide Precursors (pages 2183–2188)

      Miaosen Yang, Guoxin Zhang, Caiying Wu, Zheng Chang, Xiaoming Sun and Xue Duan

      Version of Record online: 14 AUG 2012 | DOI: 10.1002/cjoc.201200327

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      Multi-metal oxide hollow spheres with controllable metal-to-metal ratios were synthesized by a carbon sphere templating method using positively charged LDH nanosheets as precursors. Due to the composition tunability of LDH precursors, the metal-to-metal ratios of bi- and multi-metal oxide hollow spheres could be finely tuned in a wide range.

    32. Mg-Al Mixed Oxides Supported Bimetallic Au-Pd Nanoparticles with Superior Catalytic Properties in Aerobic Oxidation of Benzyl Alcohol and Glycerol (pages 2189–2197)

      Liang Wang, Wei Zhang, Shangjing Zeng, Dangsheng Su, Xiangju Meng and Fengshou Xiao

      Version of Record online: 14 AUG 2012 | DOI: 10.1002/cjoc.201200271

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      Bimetallic Au-Pd nanoparticles with rich edge and corner sites on unique support of Mg-Al mixed oxides were prepared (Au-Pd/MAO). The rich edge and corner metal atoms were directly observed in the TEM images. The catalyst gave excellent catalytic properties toward the aerobic oxidation of benzyl alcohol and glycerol.

    33. Crystallization and Morphology of Autophobic Dewetted Poly(ε-caprolactone)-b-poly(L-lactide) Diblock Copolymer Ultrathin Films (pages 2198–2204)

      Derong Yan, Haiying Huang and Tianbai He

      Version of Record online: 14 AUG 2012 | DOI: 10.1002/cjoc.201200501

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      The orientations of the primary nuclei at different parts of the droplet at high and low temperatures, respectively.

    34. Enhancement of Alkene Epoxidation Activity of Titanosilicates by Gas-Phase Ammonia Modification (pages 2205–2211)

      Liyan Zhang, Le Xu, Jingjing Sun, Jingang Jiang, Yueming Liu, Haihong Wu and Peng Wu

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200637

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      Gas-phase ammonia modification improves significantly the catalytic performance of titanosilicates, in particular Ti-MWW, in the epoxidation of alkene with hydrogen peroxide.

    35. Exploring Quaternized Hydroxyethylcellulose as Potential Gene Carriers (pages 2212–2218)

      Fei Ding, Jun You, Xiaocheng Weng, Jinping Zhou, Xiaolian Zhang, Xiang Zhou and Lina Zhang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200659

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      Quaternized hydroxyethylcellulose derivatives were studied as gene carriers for their efficient DNA binding abilities. All experiments results in these research indicated that these quaternized hydroxyethylcelluloses could be used as potential gene delivery vectors.

    36. A Novel Thiophene Derivative-based Conjugated Polymer for Polymer Solar Cells with High Open-circuit Voltage (pages 2219–2224)

      Lie Chen, Xingxing Shen and Yiwang Chen

      Version of Record online: 14 AUG 2012 | DOI: 10.1002/cjoc.201200471

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      A new D-A alternating conjugated polymer PBDTDMCT was synthesized by Stille coupling reaction. By incorporation of the ester groups into the polymer side chain, the HOMO level of polymer PBDTDMT was tuned to be deep-lying (−5.65 eV). Open-circuit voltage of polymer solar cells constructed based on PBDTDMT and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) can be tuned to achieve values as high as 0.98 V.

    37. Uptake and Speciation of Inorganic Arsenic with Cellulose Fibre Coated with Yttrium Hydroxide Layer as a Novel Green Sorbent (pages 2225–2231)

      Myong-Il An, Xiaoxing Zhang, Ting Yang, Mingli Chen and Jianhua Wang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200580

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      Yttrium hydroxide precipitate coated on cellulose fibre offers a novel green adsorbent for selective uptake of As(V) at pH 11.5 in the presence of As(III), which facilitates speciation of arsenite and arsenate.

    38. A Unique Solvent-Induced Structural Transformation of Two Acentric [Zn2(H2O)(Hdtim)2] Isomers (pages 2232–2236)

      Qinqin Dang, Fang Ji and Xianming Zhang

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200392

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      Solvent-induced structural transformation was observed in two layered supramolecular isomer of [Zn2(H2O)(Hdtim)2] (H3dtim=4,5-ditetrazoyl-imidazole). Structural analyses revealed that the two isomers have the similar geometry of Zn, coordination mode of Hdtim2−, and topological structure. Their structural differences only arise from different packing of the layers which seemingly corresponds to cooperative clockwise and counter-clockwise 90° rotation of the adjacent layers. This is a quite unique solvent-dependent supramolecular isomerism in coordination polymers.

    39. Advantage of Fluorescence Correlation Spectroscopy for the Study of Polyelectrolytes (pages 2237–2240)

      Pengxiang Jia, Yongkuan Gong, Shengqin Wang and Jiang Zhao

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200596

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      The high sensitivity of fluorescence correlation spectroscopy (FCS) enables measurements of hydrodynamic radius of single chain of polyelectrolyte at low salt condition, which has been a challenge for conventional dynamic light scattering (DLS). In this study, a direct comparison was made between these two methods on a modeled polyelectrolyte system, poly 2-vinylpyridine, and the results demonstrate the great advantage of FCS in the study of polyelectrolytes.

    40. Synthesis and Properties of Quaternary Phosphonium-based Anion Exchange Membrane for Fuel Cells (pages 2241–2246)

      Lihua Jiang, Xiaocheng Lin, Jin Ran, Chuanrun Li, Liang Wu and Tongwen Xu

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200649

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      A soluble quaternary phosphonium-based polyelectrolyte was synthesized and its analogous anion exchange membrane exhibited excellent hydroxide conductivity of 110 mS/cm at 70°C, but extremely restricted linear expansion ratio of below 7% at the same temperature, suggesting its potential application in fuel cell.

    41. Synthesis and Characterization of Comb-like P(MPEGA-co-AM) Copolymer as Phase Change Materials (pages 2247–2251)

      Hengxue Xiang, Shaohua Chen, Shichao Wang, Cheng Peng and Meifang Zhu

      Version of Record online: 25 SEP 2012 | DOI: 10.1002/cjoc.201200602

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      The schematic diagrams of P(MPEGA-co-AM) copolymer and the POM images and its spherulite growth curves of MPEG, MPEGA and copolymer.

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