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Chemistry – An Asian Journal

Cover image for Vol. 12 Issue 1

January 3, 2017

Volume 12, Issue 1

Pages 1–173

  1. Cover Pictures

    1. Top of page
    2. Cover Pictures
    3. Editorials
    4. Focus Reviews
    5. Communications
    6. Full Papers
    1. You have free access to this content
      Cover Picture: p-Quaterphenylene as an Aggregation-Induced Emission Fluorogen in Supramolecular Organogels and Fluorescent Sensors (Chem. Asian J. 1/2017) (page 1)

      Yue Sun, Dr. Yi-Xuan Wang, Mengjiao Wu, Wei Yuan and Prof. Dr. Yulan Chen

      Version of Record online: 19 DEC 2016 | DOI: 10.1002/asia.201601552

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      Supramolecular self-assembly of emissive conjugated molecules has gained tremendous attention over the past few decades. In this study, two dumbbell-shaped organogelators with a p-quaterphenylene core were synthesized and their gelation behaviors investigated. The two gelators exhibited aggregation-induced emission, which not only provided an in-situ method to optically study the gelation process but also endowed these self-assemblies with substantial applications in sensing explosives, such as picric acid. Quantitative studies showed that self-assemblies of p-quaterphenylene-based molecules displayed a better sensing performance for picric acid than those of the p-terphenylene counterpart and tetraphenylethene. More information can be found in the Full Paper by Yulan Chen et al. on page 52 in Issue 1, 2017 (DOI: 10.1002/asia.201601388).

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      Inside Cover: Solvent-Dependent Delamination, Restacking, and Ferroelectric Behavior in a New Charge-Separated Layered Compound: [NH4][Ag3(C9H5NO4S)2(C13H14N2)2]⋅8 H2O (Chem. Asian J. 1/2017) (page 2)

      Sringeri Ramesh Sushrutha, Shivanna Mohana, Somnath Pal and Prof. Srinivasan Natarajan

      Version of Record online: 23 DEC 2016 | DOI: 10.1002/asia.201601553

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      A layered coordination compound, [NH4][Ag3(C9H5NO4S)2(C13H14N2)2]⋅8 H2O, was found to exhibit delamination/restacking behavior accompanied by crystalline–amorphous–crystalline transformations, which also coincides with the observation of room-temperature ferroelectric behavior. More information can be found in the Full Paper by Srinivasan Natarajan et al. on page 101 in Issue 1, 2017 (DOI: 10.1002/asia.201601382).

  2. Editorials

    1. Top of page
    2. Cover Pictures
    3. Editorials
    4. Focus Reviews
    5. Communications
    6. Full Papers
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      From Content to Collaboration (pages 3–5)

      Dr. Theresa Kueckmann

      Version of Record online: 27 DEC 2016 | DOI: 10.1002/asia.201601657

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      Looking back, looking forward: Editor Theresa Kueckmann looks back to the journal's highlights of 2016 and forward to exciting new developments in 2017.

  3. Focus Reviews

    1. Top of page
    2. Cover Pictures
    3. Editorials
    4. Focus Reviews
    5. Communications
    6. Full Papers
    1. Porphyrinoids

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      “To Twist or Not to Twist”: Figure-of-Eight and Planar Structures of Octaphyrins (pages 6–20)

      Dr. Neelam Shivran, Dr. Santosh C. Gadekar and Prof. Dr. Venkataramanarao G. Anand

      Version of Record online: 28 NOV 2016 | DOI: 10.1002/asia.201601270

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      Twist and shout: Heterocyclic ring inversion and a figure-of-eight configuration are mutually exclusive in expanded porphyrinoids. For octaphyrins in particular, it has been observed that heterocyclic ring inversion is crucial for a macrocycle to maintain a planar conformation.

  4. Communications

    1. Top of page
    2. Cover Pictures
    3. Editorials
    4. Focus Reviews
    5. Communications
    6. Full Papers
    1. Platinum Nanoparticles

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      Synthesis and Cytotoxicity of Dendritic Platinum Nanoparticles with HEK-293 Cells (pages 21–26)

      Kyubin Shim, Dr. Jeonghun Kim, Prof. Yoon-Uk Heo, Bo Jiang, Dr. Cuiling Li, Prof. Mohammed Shahabuddin, Prof. Kevin C.-W. Wu, Dr. Md. Shahriar A. Hossain, Prof. Yusuke Yamauchi and Prof. Jung Ho Kim

      Version of Record online: 2 DEC 2016 | DOI: 10.1002/asia.201601239

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      Not Toxic! Dendritic platinum nanoparticles (DPNs) have been synthesized via a sonochemical method. The particle size and shape of the DPNs could be tuned by changing the reduction temperature, resulting in a uniform DPN with a size of 23 nm or 60 nm. The cytotoxicity of DPNs was investigated using HEK-293 human embryonic kidney cells, and the biological adaptability exhibited by DPNs has opened a pathway to biomedical applications.

    2. Peptidoglycan Fragment Synthesis

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      Synthesis of Peptidoglycan Fragments from Enterococcus faecalis with Fmoc-Strategy for Glycan Elongation (pages 27–30)

      Dr. Ning Wang, Hiroki Hasegawa, Dr. Cheng-yuan Huang, Prof. Dr. Koichi Fukase and Prof. Dr. Yukari Fujimoto

      Version of Record online: 2 DEC 2016 | DOI: 10.1002/asia.201601357

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      Everyone loves sugar(s)! Two peptidoglycan fragments from Enterococcus faecalis, a tetrasaccharide and an octasaccharide containing a unique heptapeptide, have been synthesized using an Fmoc-strategy for the elongation of glycan chains.

    3. Radical Cations

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      Configurationally Stable Chiral Dithia-Bridged Hetero[4]helicene Radical Cation: Electronic Structure and Absolute Configuration (pages 31–35)

      Bettina D. Gliemann, Dr. Ana G. Petrovic, Eva M. Zolnhofer, Dr. Pavlo O. Dral, Dr. Frank Hampel, Georg Breitenbruch, Dr. Philipp Schulze, Dr. Vijay Raghavan, Prof. Karsten Meyer, Prof. Prasad L. Polavarapu, Prof. Nina Berova and Dr. Milan Kivala

      Version of Record online: 5 DEC 2016 | DOI: 10.1002/asia.201601452

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      Radically chiral: Stable chiral hetero[4]helicene radical cations were obtained and their absolute configurations were determined by a combination of chiroptical spectroscopy and quantum mechanical predictions.

    4. Lithium-Ion Storage

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      Nitrogen-Doped Mesoporous Carbon-Encapsulated MoO2 Nanobelts as a High-Capacity and Stable Host for Lithium-Ion Storage (pages 36–40)

      Dr. Xianjun Tan, Chuanfeng Cui, Shiqun Wu, Dr. Bocheng Qiu, Prof. Lingzhi Wang and Prof. Jinlong Zhang

      Version of Record online: 5 DEC 2016 | DOI: 10.1002/asia.201601521

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      Holding a black nanobelt: Nitrogen-doped mesoporous carbon-capped MoO2 nanobelts were synthesized and employed as lithium-ion anode material. The obtained composite shows a high specific capacity, excellent cycling stability, and superior rate performance, demonstrating its promise for use in lithium-ion storage.

    5. Asymmetric Organocatalysis

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      Asymmetric Aldol Synthesis: Choice of Organocatalyst and Conditions (pages 41–44)

      Dr. Erika Nakashima and Prof. Dr. Hisashi Yamamoto

      Version of Record online: 2 DEC 2016 | DOI: 10.1002/asia.201601525

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      Also great using 0.01 mol %! Proline tetrazole showed an excellent catalytic activity for the aldol reaction between acetone and 4-nitrobenzaldehyde at 0.1 mol % catalyst loading. Using water as an additive led to excellent yields and high enantioselectivities, even on a 0.1 mol-scale production (>99 % isolated yield, 84 % ee).

    6. Random-Access Memory

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      Upgrading Electroresistive Memory from Binary to Ternary Through Single-Atom Substitution in the Molecular Design (pages 45–51)

      Xue-Feng Cheng, Er-Bo Shi, Xiang Hou, Shu-Gang Xia, Prof. Jing-Hui He, Prof. Qing-Feng Xu, Prof. Hua Li, Prof. Na-Jun Li, Prof. Dong-Yun Chen and Prof. Jian-Mei Lu

      Version of Record online: 29 NOV 2016 | DOI: 10.1002/asia.201601317

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      Thanks for the memory! For the first time, electroresistive memory is upgraded from binary to ternary through single-atom substitution. The optical and electrochemical properties indicate that the thiourea-based molecule has a lower bandgap and may be polarized by trapped charges, thus the formation of a continuous conductive channel and electric switching occurs at a lower bias voltage, which results in ternary write-once-read-many (WORM) behavior (see figure).

  5. Full Papers

    1. Top of page
    2. Cover Pictures
    3. Editorials
    4. Focus Reviews
    5. Communications
    6. Full Papers
    1. Fluorescent Gelators

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      p-Quaterphenylene as an Aggregation-Induced Emission Fluorogen in Supramolecular Organogels and Fluorescent Sensors (pages 52–59)

      Yue Sun, Dr. Yi-Xuan Wang, Mengjiao Wu, Wei Yuan and Prof. Dr. Yulan Chen

      Version of Record online: 20 DEC 2016 | DOI: 10.1002/asia.201601388

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      A new AIEgen! Two p-quaterphenylene-cored dumbbell-shaped aggregation-induced emission (AIE) molecules (QP-1, QP-2) have been synthesized and showed efficient gelation ability. They are versatile optical monitors not only for in situ studies of gelation processes, but also for sensing explosives (see figure).

    2. Electrocatalysis

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      Tungsten Nitride-Cobalt Anchored in N-Doped Ordered Porous Carbon as an Efficient Oxygen Reduction Reaction Electrocatalyst (pages 60–66)

      Yan Zhou, Dr. Hairong Xue, Dr. Tao Wang, Dr. Hu Guo, Dr. Xiaoli Fan, Dr. Li Song, Dr. Wei Xia, Dr. Hao Gong, Yuping He, Junwei Wang and Prof. Jianping He

      Version of Record online: 30 NOV 2016 | DOI: 10.1002/asia.201601253

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      Cheap as chips: The non-precious-metal tungsten nitride-cobalt/nitrogen-doped ordered porous carbon (WN-Co/NOPC) has been developed through a facile in situ synthesis. It exhibits an excellent activity and stability because of its ordered porous structure, nitrogen doping, high dispersion of WN-Co nanoparticles and the ensemble effects between the WN and Co phases, making it a promising cathode catalyst in fuel cells.

    3. Anti-amyloidogenic Compounds

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      Flavonoids and Their Glycosides as Anti-amyloidogenic Compounds: Aβ1–42 Interaction Studies to Gain New Insights into Their Potential for Alzheimer's Disease Prevention and Therapy (pages 67–75)

      Dr. Cinzia Guzzi, Laura Colombo, Ada De Luigi, Mario Salmona, Prof. Francesco Nicotra and Dr. Cristina Airoldi

      Version of Record online: 5 DEC 2016 | DOI: 10.1002/asia.201601291

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      Recognize each other: Combining NMR spectroscopy, transmission electron microscopy, biochemical and in vitro toxicity assays, the effect of flavonoid glycosylation, a chemical modification found very frequently in Nature, on their ability to recognize and bind Aβ1–42 oligomers, preventing their aggregation and their neurotoxicity, was characterized.

    4. Quantum Dots

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      Utilization of Red-Light-Emitting CdTe Nanoparticles for the Trace-Level Detection of Harmful Herbicides in Adulterated Food and Agricultural Crops (pages 76–85)

      Nilanjan Dey, Deepa Bhagat, Durgadas Cherukaraveedu and Prof. Dr. Santanu Bhattacharya

      Version of Record online: 7 DEC 2016 | DOI: 10.1002/asia.201601302

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      Watch your Ps and Qs: Red-light-emitting water-soluble semiconducting quantum dots (QDs) were synthesized by using a variety of thiol-type capping agents. QDs with a negatively charged nanosurface showed excellent selectivity for paraquat (PQ) at pH 7.4 over other commonly encountered pesticides/herbicides, including diquat (DQ). These QDs offer a marker for the detection of residual PQ in vegetables, fruits, cereals, and fodders.

    5. Helical Structures

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      Synthesis, Structures, Resolution, and Chiroptical Properties of 1,16-Diaryl-Substituted Benzo[5]helicene Derivatives (pages 86–94)

      Wei-Bin Lin, Dr. Meng Li, Lei Fang, Dr. Yun Shen and Prof. Chuan-Feng Chen

      Version of Record online: 25 NOV 2016 | DOI: 10.1002/asia.201601305

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      Twisted tubes: A series of 1,16-diarylbenzo[5]helicene derivatives showed helical, twisted structures and formed hierarchical packing architectures with alternating P and M layers in the solid state. Moreover, optically pure and stable enantiomers of the 1,16-diarylbenzo[5]helicene derivatives were also obtained; one of them formed a helical nanotubular structure through the self-assembly of one enantiomer by halogen bonding.

    6. Self-Assembly | Very Important Paper

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      Monodisperse TiO2 Spheres with High Charge Density and Their Self-Assembly (pages 95–100)

      Dr. Hongbo Xia, Prof. Suli Wu, Dr. Xin Su and Prof. Shufen Zhang

      Version of Record online: 7 DEC 2016 | DOI: 10.1002/asia.201601347

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      Well rounded: When thioglycolic acid (TGA) is mixed with tetrabutyl titanate (TBT), the reactant (carboxylate derivatives) displays a much lower hydrolysis rate due to the stronger bonding energy after the addition of H2O which is beneficial to the formation of monodisperse TiO2 spheres. When NaOH solution is introduced to the TiO2 colloids, −S−1 ions are formed on the surface of the TiO2 that can effectively increase the repulsion forces by means of the electrostatic repulsion effect. As a result, TiO2 spheres tend to self-assemble to an ordered structure when the solvent is evaporated.

    7. Coordination Polymers

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      Solvent-Dependent Delamination, Restacking, and Ferroelectric Behavior in a New Charge-Separated Layered Compound: [NH4][Ag3(C9H5NO4S)2(C13H14N2)2]⋅8 H2O (pages 101–109)

      Sringeri Ramesh Sushrutha, Shivanna Mohana, Somnath Pal and Prof. Srinivasan Natarajan

      Version of Record online: 19 DEC 2016 | DOI: 10.1002/asia.201601382

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      Stacking up: A layered anionic coordination polymer, [NH4][Ag3(C9H5NO4S)2(C13H14N2)2]8 H2O, exhibits delamination and restacking as a function of dehydration, which also coincides with the ferro/paraelectric behavior.

    8. Metal-Binding Ligands

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      Zinc Complexes of Cyclodextrin-bearing 8-Hydroxyquinoline Ligands: A Comparative Study (pages 110–115)

      Dr. Valentina Oliveri, Dr. Adriana Pietropaolo, Dr. Carmelo Sgarlata and Prof. Graziella Vecchio

      Version of Record online: 7 DEC 2016 | DOI: 10.1002/asia.201601389

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      That's a great comparison: A comparative study on the conditional stability constants of zinc(II) and copper(II) complexes of a series of cyclodextrin-8-hydroxyquinoline conjugates was performed. The stability of the complexes was explained through DFT-based simulations. These data contribute to a better understanding of the features of 3-functionalized cyclodextrin complexes compared to those of the corresponding 6-derivatives.

    9. Anodes | Very Important Paper

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      Antimony/Porous Biomass Carbon Nanocomposites as High-Capacity Anode Materials for Sodium-Ion Batteries (pages 116–121)

      Xiaoli Zhang, Pengxin Li, Rui Zang, Shijian Wang, Ye Zhu, Cong Li and Prof. Guoxiu Wang

      Version of Record online: 29 NOV 2016 | DOI: 10.1002/asia.201601398

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      A salt and battery: Antimony/porous biomass carbon nanocomposites were prepared by a chemical reduction method and applied as anodes for sodium-ion batteries. The as-prepared nanocomposites exhibited a high reversible sodium storage capacity, extended cycling stability, and good rate capability.

    10. Macrocycles

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      Stimuli-Responsive Cucurbit[7]uril-Mediated BSA Nanoassembly for Uptake and Release of Doxorubicin (pages 122–129)

      Dr. Nilotpal Barooah, Dr. Amit Kunwar, Raman Khurana, Dr. Achikanath C. Bhasikuttan and Dr. Jyotirmayee Mohanty

      Version of Record online: 9 DEC 2016 | DOI: 10.1002/asia.201601411

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      Stimulating Assemblies: We report the construction of a non-toxic nanoassembly between bovine serum albumin (BSA) and cucurbit[7]uril macrocycle and its breakage with adamantylamine or pH, which restores the protein structure and recognition properties. The assembly shows efficient loading and controlled release of doxorubicin, the same being validated in cells.

    11. C−H Functionalization

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      Palladium-Catalyzed C−H Functionalization of Phenyl 2-Pyridylsulfonates (pages 130–144)

      Bin Li, Dong-Dong Guo, Shi-Huan Guo, Gao-Fei Pan, Ya-Ru Gao and Prof. Dr. Yong-Qiang Wang

      Version of Record online: 29 NOV 2016 | DOI: 10.1002/asia.201601413

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      Phenols more than just great antioxidants: An efficient palladium-catalyzed ortho-alkenylation and acetoxylation of phenols is described. The reaction provides access to coumarins and benzofurans via a seven-membered cyclopalladated intermediate, showing complete regio- and diastereoselectivity.

    12. Phosphorescent Pd Complexes

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      Palladium(II) Acetylide Complexes with Pincer-Type Ligands: Photophysical Properties, Intermolecular Interactions, and Photo-cytotoxicity (pages 145–158)

      Dr. Faan-Fung Hung, Dr. Shui-Xing Wu, Dr. Wai-Pong To, Dr. Wai-Lun Kwong, Dr. Xiangguo Guan, Prof. Dr. Wei Lu, Dr. Kam-Hung Low and Prof. Dr. Chi-Ming Che

      Version of Record online: 13 DEC 2016 | DOI: 10.1002/asia.201601414

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      Phosphorescence with Pd: Two classes of cationic palladium(II) acetylide complexes with pincer-type ligands were prepared and structurally characterized. The PdII acetylide complexes supported by a C^N^C ligand with two N-heterocyclic carbene units display phosphorescence at room temperature and stronger intermolecular interactions in the solid state.

    13. Synthetic Glycopeptides

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      Synthetic Mucin-Like Glycopeptides as Versatile Tools to Measure Effects of Glycan Structure/Density/Position on the Interaction with Adhesion/Growth-Regulatory Galectins in Arrays (pages 159–167)

      Dr. Gerard Artigas, Dr. Hiroshi Hinou, Dr. Fayna Garcia-Martin, Prof. Dr. Hans-Joachim Gabius and Prof. Dr. Shin-Ichiro Nishimura

      Version of Record online: 2 DEC 2016 | DOI: 10.1002/asia.201601420

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      3×G! Glycopeptides, Glycans and Galectins: Functional pairing of surface glycans with tissue lectins can be modulated by presentation and lectin structure. A microarray with tumor-associated glycopeptides of mucin 1 and a selection of galectins show that the binding profiles of related proteins is markedly different, a perspective for a detailed structure–function analysis.

    14. Alkyne Trimerization

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      Nickel-Catalyzed Facile [2+2+2] Cyclotrimerization of Unactivated Internal Alkynes to Polysubstituted Benzenes (pages 168–173)

      Dr. Fei Xue, Ying Kai Loh, Dr. Xiaolu Song, Wei Jie Teo, J. Y. Darrence Chua, Dr. Jin Zhao and Prof. Dr. T. S. Andy Hor

      Version of Record online: 1 DEC 2016 | DOI: 10.1002/asia.201601469

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      Reinventing the wheel(s)! A catalytic [2+2+2] cyclotrimerization of unactivated internal alkynes providing cyclotrimerization products in excellent yields with high regioselectivity is described. The transformation is accomplished by using a simple catalytic mixture comprising Ni(acac)2, an imidazolium salt and a Grignard reagent at room temperature or 60 °C for 20 min or 1 h.

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