The Asian Chemical Editorial Society (ACES) is an organization of 13 major chemical societies in Asia and the Pacific. It was founded in 2005 as a conglomeration of chemical societies with the mutual aim of creating a modern publishing forum for research in Asia and coordinating future publishing activities.
The participating societies share a commitment to scientific excellence, to publishing ethics, and to the highest standards in publication, which are the basis for the success of Chemistry—An Asian Journal and its associated journals.
A sister journal of Angewandte Chemie and Chemistry—A European Journal
A sister journal of the European Journal of Organic Chemistry
For the publication of the AsianJOC, ACES is joined by the Korean Society of Organic Synthesis.
Supporting Organization: ChemPubSoc Europe
ACES supports the publication of the ChemPubSoc Europe journals Chemistry—A European Journal, the European Journal of Organic Chemistry, and ChemSusChem.
© Wiley-VCH 2012
A Good Year
Chem. Asian J. 2014 9, 4.
There's an App for That
Asian J. Org. Chem. 2014 3, 3.
“Organocatalysis” with metal complexes: Inert octahedral metal complexes are an emerging class of catalysts for asymmetric synthesis. In these compounds the globular, rigid nature and stereochemical options of octahedral compounds are exploited. Complexes like those shown promise new opportunities in the field of catalysis.
Lei Gong, Liang-An Chen, Eric Meggers
Angew. Chem. Int. Ed. 2014, 53, No. 41, 10868. Read article.
To be or not to be (cationic)? In the presence of monomer, neutral 16-electron N-heterocyclic carbene adducts of high oxidation state MoVI N-arylimidoalkylidene bis(triflate) complexes convert into cationic 16-electron complexes that are active and functional-group tolerant polymerization catalysts.
Michael R. Buchmeiser, Suman Sen, Jörg Unold, Wolfgang Frey
Angew. Chem. Int. Ed. 2014, 53, No. 35, 9384. Read article.
Ionic flip-flop: Polymers with intrinsic microporosity introduce ionic diode and metastable switching effects as a result of their rigid backbone and molecular-structure-dependent anion versus cation conductivity.
Elena Madrid, Yuanyang Rong, Mariolino Carta, Neil B. McKeown, Richard Malpass-Evans, Gary A. Attard, Tomos J. Clarke, Stuart H. Taylor, Yi-Tao Long, Frank Marken
Angew. Chem. Int. Ed. 2014, 53, No. 40, 10751. Read article.
Catch the sun: Two solution-processable donor-acceptor (D-A) structured organic small molecules based on silole-modified pentathiophene (SiPTA) as the donor unit and diketopyrrolopyrrole (DPP) as the acceptor unit, DPP2(SiPTA) and DPP-SiPTA, were synthesized. The D-A structure and molecular symmetry can significantly tailor energy levels and crystallization, respectively. Solar cells based on DPP2(SiPTA) have power conversion efficiencies of 2.36 %.
Qing-Cai Yu, Wei-Fei Fu, Hong-Yu Wang, Xiao-Feng Wu, Jun-Hua Wan, Min-Min Shi, Hong-Zheng Chen
Asian J. Org. Chem. 2014, 3, No. 9, 984. Read article.
Boxing clever: This Focus Review highlights the chemistry of chiral aziridine-2-carboxylates as building blocks based on regio- and stereoselective functional group transformations of the carboxylate group and aziridine ring. This chemistry is exemplified by the efficient and highly stereoselective synthesis of many biologically important amines, including several natural products.
Hyun-Joon Ha, Jae-Hoon Jung, Won Koo Lee
Asian J. Org. Chem. 2014, 3, No. 10, 1020. Read article.
One-pot wonder! The syntheses of imidazo[1,2-a]pyridines and pyrido[1,2-a]pyrimidines were carried out by using a one-pot three-component protocol. The reaction proceeds in a single step through a domino Knoevenagel condensation/aza-ene addition/imine–enamine tautomerization/chemoselective N-cyclization sequence of reactions (In=indolyl).
Sathiyamoorthi Sivakumar, Raju Ranjith Kumar
Asian J. Org. Chem. 2014, 3, No. 9, 974. Read article.
In contrast to the general view, graphite can be used as an electrode material in sodium-ion batteries by taking advantage of the formation of ternary graphite intercalation compounds. The important features of this electrode reaction are the small irreversible capacity, the low overpotentials, and the superior cycle life. With a capacity close to 100 mAh g−1, the electrode is attractive for stationary applications.
Birte Jache, Philipp Adelhelm
Angew. Chem. Int. Ed. 2014, 53, No. 38, 10169. Read article.
Going up! The upward trend in efficiency of lanthanide (Ln) triflates in catalyzing aromatic sulfonylation reaction correlates with the lanthanide sequence in the periodic table. Various related physical properties of lanthanide ions were found to have some influence on the catalytic activity.
Vo Thu An Nguyen, Fritz Duus, Thach Ngoc Le
Asian J. Org. Chem. 2014, 3, No. 9, 963. Read article.
Take your vitamins: A highly selective process for the conversion of bioethanol to C4 bulk chemicals, such as 2,3-butanediol and butene, is reported. The process involves the use of a vitamin B1 (thiamine)-derived N-heterocyclic carbene (NHC)-catalyzed acetoin condensation as the key step to assemble two C2 acetaldehydes into a C4 product. The environmentally benign and cheap natural catalyst vitamin B1 demonstrates high selectivity, high efficiency, and high tolerance toward ethanol and water impurities in the acetoin reaction.
Ting Lu, Xiukai Li, Liuqun Gu, Yugen Zhang
ChemSusChem 2014, 7, No. 9, 2423. Read article.
Nanoparticles and macrocycles: Recent literature regarding the combination of supramolecular macrocycles and metal nanoparticles is reviewed, with particular emphasis on the synthesis, surface modification and assembly, as well as the potential applications of the obtained nanocomposites (SERS = surface-enhanced Raman spectroscopy).
Verónica Montes-García, Jorge Pérez-Juste, Isabel Pastoriza-Santos, Luis M. Liz-Marzán
Chem. Eur. J. 2014, 20, No. 35, 10874. Read article.
Chiral ionic liquids derived from natural amino acids are shown to be efficient solvents or additives for direct asymmetric aldol reactions. A match/mismatch effect between the configuration of the chiral ionic liquid and that of proline has been observed, with a higher enantioselectivity obtained for the (S)-proline/CIL 2 complex.
Laura González, Jorge Escorihuela, Belén Altava, M. Isabel Burguete, Santiago V. Luis
Eur. J. Org. Chem. 2014, No. 24, 5356. Read article.
A snug fit: How does ligand–ligand affinity influence sequence-specific molecular recognition for the DNA minor groove? Energetic, structural and assembly characteristics for three related ligands and their cognate DNA recognition complexes were compared by NMR spectroscopy and ITC. Careful engineering of ligands can modify physicochemical properties such as aggregation characteristics without compromising DNA binding ability.
Hasan Y. Alniss , Marie-Virginie Salvia, Mykhailo Sadikov, Igor Golovchenko, Nahoum G. Anthony, Abedawn I. Khalaf, Simon P. MacKay, Colin J. Suckling, John A. Parkinson
ChemBioChem 2014, 15, No. 13, 1978. Read article.
Communication breakdown: Dyads and triads composed of fullerenes and pyrrolotetrathiafulvalenes were prepared by Prato cycloaddition reactions and subjected to detailed electrochemical and photophysical studies, including absorption and fluorescence spectroscopy, as well as femtosecond and nanosecond transient absorption studies, which indicated no observable electronic communication between the tetrathiafulvalene and the C60 moieties (see figure). The dyad and triad molecules form self-assembled monolayers on gold surfaces.
Marta Vico Solano, Eduardo Antonio Della Pia, Martyn Jevric, Christina Schubert, Xintai Wang, Cornelia van der Pol, Anders Kadziola, Kasper Nørgaard, Dirk M. Guldi, Mogens Brøndsted Nielsen, Jan O. Jeppesen
Chem. Eur. J. 2014, 20, No. 32, 9918. Read article.
Free upgrade: By tailoring both biological and chemocatalytic processes, the production of sustainable biodiesel from lignocellulosic sugar is maximized. Hydrotalcite-supported copper(II) and palladium(0) catalysts are combined with a modification of the process of fermentation of acetone–butanol–ethanol to isopropanol–butanol–ethanol, producing higher concentrations of diesel-range components in the alkylation reaction.
Sanil Sreekumar, Zachary C. Baer, Elad Gross, Sasisanker Padmanaban, Konstantinos Goulas, Gorkem Gunbas, Selim Alayoglu, Harvey W. Blanch, Douglas S. Clark, F. Dean Toste
ChemSusChem 2014, 7, No. 9, 2445. Read article.
The absolute configuration of pyrimidine nucleoside derivatives obtained by enantioselective reduction was determined using a combination of electronic circular dichroism (ECD) and vibrational circular dichroism (VCD) spectroscopy in tandem with quantum chemical calculations.
Marcin Górecki, Aleksandra Karczmarska-Wódzka, Renata Kołodziejska, Marcin Dramiński, Jadwiga Frelek
Eur. J. Org. Chem. 2014, No. 24, 5204. Read article.
Lipophilic and selective: A new lipophilic analogous of N-hydroxyphthalimide, operating with reduced amounts of polar cosolvent, reaches the goal of promoting the aerobic oxidation of alkylaromatics to the corresponding hydroperoxides with good yields and high selectivity. The catalyst is selected on the basis of a study on the influence of substituents on the aromatic ring of N-hydroxyphthalimide.
Manuel Petroselli, Paola Franchi, Marco Lucarini, Carlo Punta, Lucio Melone
ChemSusChem 2014, 7, No. 9, 2695. Read article.
Crystal-clear hydrolysis: The crystal structures of OPH with bound inhibitors from two PVA-degrading microbes were analyzed to elucidate the hydrolytic mechanism of oxi-PVA. Several site-directed mutants were also constructed to enhance the OPH activity.
Yu Yang, Tzu-Ping Ko, Long Liu, Jianghua Li, Chun-Hsiang Huang, Hsiu-Chien Chan, Feifei Ren, Dongxu Jia, Andrew H.-J. Wang, Rey-Ting Guo, Jian Chen, Guocheng Du
ChemBioChem 2014, 15, No. 13, 1882. Read article.
Hybridization and structure of exocyclic amino groups of cytosine and adenine nucleobases can shift from sp2 to sp3 (see graphic) if an amino proton acts as a donor in a strong hydrogen-bonding interaction or if it is replaced by a monofunctionally bonded metal ion.
Célia Fonseca Guerra, Pablo J. Sanz Miguel, Andrea Cebollada, F. Matthias Bickelhaupt, Bernhard Lippert
Chem. Eur. J. 2014, 20, No. 31, 9494. Read article.
A series of star-shaped compounds with different pyridine end groups is prepared, and the 2D self-assembly of these compounds is investigated by scanning tunneling microscopy (STM). Small variations in the substitution pattern lead to remarkably different self-assembly behavior. A reduction of the symmetry of the compounds has a particularly strong effect on the self-assembly result.
Daniel Trawny, Lucie Vandromme, Jürgen P. Rabe, Hans-Ulrich Reissig
Eur. J. Org. Chem. 2014, No. 23, 4985. Read article.
Photochemical OFF→ON switching of proteins: Caged cysteine and caged homocysteine were genetically incorporated into proteins in bacterial and mammalian cells, allowing photochemical control over the activity of these proteins and thus offering the potential for precise spatial and temporal regulation of a wide range of cellular processes.
Rajendra Uprety, Ji Luo, Jihe Liu, Yuta Naro, Subhas Samanta, Alexander Deiters
ChemBioChem 2014, 15, No. 12, 1793. Read article.
Dye dyad design: The fusion of a naphthalene diimide dye to a zinc–bis-salicylimide phenylene (salphen; see figure) moiety creates an expanded red-light absorbing chromophore with an embedded metal atom for supramolecular interaction with substituted pyridines. A column-chromatography-free preparation of this novel scaffold is described and its photophysical properties are analyzed, which compare favorably with the widely used supramolecular light-harvester zinc tetraphenylporphyrin.
Jeroen A. Rombouts, Janneke Ravensbergen, Raoul N. Frese, John T. M. Kennis, Andreas W. Ehlers, J. Chris Slootweg, Eelco Ruijter, Koop Lammertsma, Romano V. A. Orru
Chem. Eur. J. 2014, 20, No. 33, 10285. Read article.
An efficient methodology for the solid-phase synthesis of cyclic lipopeptidotriazoles involving the use of five orthogonal protecting groups has been established. This strategy has been used to prepare a set of derivatives of the antimicrobial cyclic peptide BPC194 in high purities.
Sílvia Vilà, Cristina Camó, Eduard Figueras, Esther Badosa, Emilio Montesinos, Marta Planas, Lidia Feliu
Eur. J. Org. Chem. 2014, No. 22, 4785. Read article.
The structure–function relationship of a U-turn motif in the terminal loop of a synthetic neomycin riboswitch has been investigated. The analysis revealed those nucleobases required to optimize riboswitch function at every single position. A detailed comparison of functional and inactive mutants revealed a relationship between aptamer dynamics and regulation efficiency.
Julia E. Weigand, Sina R. Gottstein-Schmidtke, Shemsi Demolli, Florian Groher, Elke Duchardt-Ferner, Jens Wöhnert, Beatrix Suess
ChemBioChem 2014, 15, No. 11, 1627. Read article.
Charged and ready: Composite supercapacitor electrodes based on metal–organic frameworks and carbon nanotubes are tested with environmentally friendly electrolytes. The energy-storage mechanism followed by these materials is explored and explained, and promising results are obtained with the electrodes.
Nicolò Campagnol, Ricardo Romero-Vara, Willem Deleu, Linda Stappers, Koen Binnemans, Dirk E. De Vos, Jan Fransaer
ChemElectroChem 2014, 1, No. 7, 1182. Read article.
At an important junction: Scanning tunneling microscopy and quantum chemistry calculations were combined to probe the conductivity of the dimeric 1,4-benzenedithiol (BDT) junction. The dihedral angle of the S-S bond tends to take a perpendicular conformation, which breaks the conjugated structure and localizes the electron distribution.
Lin Wang, Shu-Ying Li, Jing-He Yuan, Jing-Ying Gu, Dong Wang, Li-Jun Wan
Chem. Asian J. 2014, 9, No. 8, 2077. Read article.
Up, up, and away! Using a novel single-source precursor, the most efficient hexagonal phase of the upconverting NaGdF4:Yb3+,Tm3+ nanocrystals was obtained under mild conditions. These nanocrystals were used to form a composite with TiO2 as a new photocatalyst, enabling titania to extend its absorption range from ultraviolet to the near-infrared region.
Ying Chen, Shashank Mishra, Gilles Ledoux, Erwann Jeanneau, Marlene Daniel, Jinlong Zhang, Stéphane Daniele
Chem. Asian J. 2014, 9, No. 9, 2415. Read article.
Off the bench: Rational benchmarking of molecular catalysts entails comparing their catalytic Tafel plots within the same log(turnover frequency) versus overpotential plane of merit.
Cyrille Costentin, Jean-Michel Savéant
ChemElectroChem 2014, 1, No. 7, 1226. Read article.
Size matters: A set of 5-phenylsulfanyl- and 5-benzyl-substituted tetrahydro-2-benzazepines was synthesized by the novel strategy of connecting C6–C1 and C3–N building blocks. Diverse N substituents were introduced, and the compounds were pharmacologically evaluated. High σ1 receptor affinity was observed for 2-benzazepines with N substituents larger than a linear propyl group. The N-(4-fluorobenzyl)-substituted derivative is a promising starting point for development of σ1 ligands with cognition-enhancing and analgesic activity.
Peer Hasebein, Bastian Frehland, Dirk Schepmann, Bernhard Wünsch
ChemMedChem 2014, 9, No. 8, 1697. Read article.
A wisdom mix: The effect of water on the partial oxidation of acrolein on Mo/V/W mixed oxides is studied. The incorporation of oxygen originating from water into acrolein and oxidation products is investigated by performing isotope exchange experiments.
Tina Petzold, Nina Blickhan, Alfons Drochner, Herbert Vogel
ChemCatChem 2014, 6, No. 7, 2053. Read article.
No inhibitions: One-pot cascade chemoenzymatic synthesis of chiral α-trifluoromethylated amines from ketoximes is performed by using catalysts prepared by atomic-layer deposition (ALD) method combined with Candida antarctica lipase B. The obtained amine was treated as an important raw material for total synthesis of an (S)-inhibitor of phenylethanolamine N-methyltransferase (PNMT).
Guilin Cheng, Qi Wu, Zeyu Shang, Xinhua Liang, Xianfu Lin
ChemCatChem 2014, 6, No. 7, 2129. Read article.
No more waste: Supported gold nanoparticles catalyze the coupling of unactivated arenes in O2 without the typical need of iodine oxidants, acids, bases, or additional metal salts in solution to result in a zero-waste synthetic process. This is in contrast to other catalysts that can perform for only a few turnovers and produce large quantities of waste.
Pedro Serna, Avelino Corma
ChemSusChem 2014, 7, No. 8, 2136. Read article.
Under irradiation, a Ru–TAP (TAP = 1,4,5,8-tetraazaphenanthrene) complex linked to an oligonucleotide (violet) hybridized with its complementary sequence (green) is covalently anchored specifically to the G bases of the complementary sequence and not the G bases along its own sequence.
Lionel Marcélis, Mathieu Surin, Rémy Lartia, Cécile Moucheron, Eric Defrancq, Andrée Kirsch-De Mesmaeker
Eur. J. Inorg. Chem. 2014, No. 19, 3016. Read article.
The long ranger: Transmission electron microscopy analysis of the material produced by the potentiostatic electropolymerization of a rigid, highly symmetrical, slender precursor with four reactive 3-methoxythiophene end-groups provides evidence for the formation of organized nanostructures.
Ali Yassin, Romain Mallet, Philippe Leriche, Jean Roncali
ChemElectroChem 2014, 1, No. 7, 1219. Read article.
Small-sized hexagonal boron nitride (h-BN) nanoparticles have been synthesized. Copper oxide plays a role in changing the surface properties of h-BN nanoparticles and improving their aqueous dispersibility. The h-BN nanoparticles can be well dispersed and are stable in aqueous solution.
Chengjia Xiong, Weixia Tu
Eur. J. Inorg. Chem. 2014, No. 19, 3010. Read article.
Porphyrin–ferrocene dyads and porphyrin–ferrocene–porphyrin tweezers with tuneable electron density at the porphyrin arms and ferrocene cores are prepared, and the reductive photoinduced electron transfer from ferrocene to the electronically excited porphyrins is investigated. Singlet–singlet energy transfer between the porphyrin arms in the tweezers is also feasible in a V-shaped conformation.
Jascha Melomedov, Julian Robert Ochsmann, Michael Meister, Frédéric Laquai, Katja Heinze
Eur. J. Inorg. Chem. 2014, No. 18, 2902. Read article.
Kinetics change: A detailed investigation of methane steam reforming over a nickel catalyst is performed at steam-to-carbon (S/C) ratios of 0.2–7.1 at 843, 858, and 873 K. Kinetic orders (red for high and blue for low values) of the reactants change as a function of S/C. The background color represents steam and the color of the symbols methane kinetic order. The actual position of the symbols represents the steam conversion rate as a function of S/C.
Christoph Sprung, Bjørnar Arstad, Unni Olsbye
ChemCatChem 2014, 6, No. 7, 1969. Read article.
Shielded: A nickel–copper alloy is mixed with gadolinium-doped ceria to obtain an anode-supported solid-oxide fuel cell (AS-SOFC) modified with a protective layer coated on the anode (see picture; YSZ = Y0.08Zr0.92O2, YDC = Y0.10Ce0.90O2, LSFCO = La0.6Sr0.4Fe0.8Co0.2O3). A comparative study between the modified cell and a conventional AS-SOFC without the protective layer is performed.
Massimiliano Lo Faro, Rafael M. Reis, Guilherme G. A. Saglietti, Andre G. Sato, Edson A. Ticianelli, Sabrina C. Zignani, Antonio S. Aricò
ChemElectroChem 2014, 1, No. 8, 1395. Read article.
Normal or the reverse: The formation mechanism and dynamics of both normal and reverse branched polymersomes from hyperbranched multiarm copolymers were studied in detail through dissipative particle dynamics simulations. A “unimers-to-spheres-to-membranes-to-vesicles” pathway without rod intermediates is disclosed. In addition, the bilayer or monolayer molecular packing models and microphase separation behaviors of these vesicles were also studied and compared.
Yuling Wang, Bin Li, Haibao Jin, Yongfeng Zhou, Zhongyuan Lu, Deyue Yan
Chem. Asian J. 2014, 9, No. 8, 2281. Read article.
Packed in like herrings: A cyclophane molecule with disilanyl pillars was synthesized by using ternaphthyl as base arylene units to afford a macrocycle possessing interfused packing structures of π-stack and herringbone motifs.
Waka Nakanishi, Naoto Matsuyama, Daisuke Hara, Akinori Saeki, Shunpei Hitosugi, Shu Seki, Hiroyuki Isobe
Chem. Asian J. 2014, 9, No. 7, 1782. Read article.
Ideal for bulky substrates: Catalytic behavior of hierarchical MFI zeolites was investigated in annulation reaction of phenols differing in size with methylbutenol and compared with that of medium and large-pore zeolites MFI and BEA.
Maksym V. Opanasenko, Mariya V. Shamzhy, Changbum Jo, Ryong Ryoo, Jirí Čejka
ChemCatChem 2014, 6, No. 7, 1919. Read article.
Time to wake up! Histamine H3 receptor (H3R) inverse agonism is a well-established paradigm for the treatment of narcolepsy. Unfortunately, all drug candidates so far proved to have a long duration of action, causing insomnia on the following night. The chance discovery of a novel, ergoline-based scaffold opens a new avenue towards derivatives that exhibit potent, but short-acting, inhibition of H3R.
Yves P. Auberson, Thomas Troxler, Xuechun Zhang, Charles R. Yang, Markus Fendt, Dominik Feuerbach, Yu-Chih Liu, Bharat Lagu, Andreas Lerchner, Mark Perrone, Lijun Lei, Chao Zhang, Chunxiu Wang, Tie-Lin Wang, Mark G. Bock
ChemMedChem 2014, 9, No. 8, 1683. Read article.
Better than ‘Super’: Compounds that elicit cytoprotective and anti-inflammatory effects are promising candidates for chemoprevention. Analogues of 1-methyl-3-(2-oxopropylidene)indolin-2-one (‘supercinnamaldehyde’) were synthesized and evaluated for their ability to induce Nrf2-mediated cytoprotection and suppress NF-κB-directed inflammation. Lead compound 6 (R1: Me; R2: Ph), with the supercinnamaldehyde scaffold, has the potential to yield derivatives with even greater chemopreventive activity.
Amrita A. Nagle, Shridhivya A. Reddy, Helene Bertrand, Hisashi Tajima, Truong-Minh Dang, Siew-Cheng Wong, John D. Hayes, Geoffrey Wells, Eng-Hui Chew
ChemMedChem 2014, 9, No. 8, 1763. Read article.
Bond activation by intramolecular interactions of alkynyl carbon with highly Lewis acidic aluminium atoms was observed for functionalised alkenyl-alkynylgermanes. Such mixed germanium–aluminum or –gallium compounds were obtained by hydrometallation of dialkynylgermanes and are promising candidates for secondary reactions such as cyclisation or insertion.
Werner Uhl, Stefan Pelties, Martina Rohling, Jens Tannert
Eur. J. Inorg. Chem. 2014, No. 17, 2809. Read article.
The life of π: Pt-based quinoline and benzothiazole complexes were synthesized with an aim to design drugs with higher affinity for π–π stacking and electrostatic interactions with targeted biomolecules. Fluorescence spectroscopy and molecular modeling led to candidate complexes with significant cytotoxicity toward various tumor cell lines.
Erin S. F. Ma, A. Gerard Daniel, Nicholas P. Farrell
ChemMedChem 2014, 9, No. 6, 1155. Read article.
The importance of the chemical history of the electrode surface before electrochemical cycling as well as the correlation between interface phenomena, the formation/evolution of an interphase, and the electrochemical behavior of LiFePO4 and LiNi1/2Mn1/2O2 electrodes are investigated by magic-angle-spinning nuclear magnetic resonance, electron energy loss spectroscopy, and X-ray photoelectron spectroscopy. These techniques allow the study of interface aging and failure mechanisms.
Nicolas Dupré, Marine Cuisinier, Jean-Frederic Martin, Dominique Guyomard
ChemPhysChem 2014, 15, No. 10, 1922. Read article.
Caught on film: Magnetic resonance imaging (MRI) is common in medical research and, more recently, is being applied to visualize chemical composition, molecular transport, and physical environment in engineering and materials research. Researchers are now starting to use these techniques to investigate electrochemical devices.
Melanie M. Britton
ChemPhysChem 2014, 15, No. 9, 1731. Read article.
A near-red fluorescent impurity is characterized in several commonly used far-red fluorescent dyes. This impurity can lead to artifacts in live-cell multicolor super-resolution measurements, subtle artifacts in chemically fixed cells, and highlights the importance of controls in super-resolution imaging.
Matthew B. Stone, Sarah L. Veatch
ChemPhysChem 2014, 15, No. 11, 2240. Read article.
Tale of entanglement: An eight-spin-qubit quantum entangled state can be realized in a dinuclear Fe(II) complex which (under a specific set of quantum-logic-gate operations) can act as a source of multi-qubit generation. The large decoherence time with high quantum fidelity factor makes the system an efficient quantum-computing object.
Mausumi Chattopadhyaya, Md. Mehboob Alam, Debasis Sarkar, Swapan Chakrabarti
ChemPhysChem 2014, 15, No. 9, 1747. Read article.
In charge: The influence of the charge relay effects of peptide organic templates on silica mineralization has been investigated. β-Sheet-type peptide shows higher catalytic activity toward the condensation of trimethylsilanol than random-coil peptide (see figure). Silica mineralized on the Val-His-Val-Glu-Val-Ser (VHVEVS) peptide template forms a flat surface, which is affected by the peptide morphology.
Kazuki Murai, Masahiro Higuchi, Tatsuya Kuno, Katsuya Kato
ChemPlusChem 2014, 79, No. 4, 531. Read article.
Helix topological effect: The helix C segment in HA-9 leads to fascinating long-range charge-transfer character. As a result, the β0 value of HA-9 is 1.80×104 a.u., which is clearly larger than that of PA-9 (4.99×103 a.u.). Further investigations show that the larger β0 value of HA-9 is essentially induced by the helix topological effect of the C-segment (see figure).
Rong-Lin Zhong, Shi-Ling Sun, Hong-Liang Xu, Yong-Qing Qiu, Zhong-Min Su
ChemPlusChem 2014, 79, No. 5, 732. Read article.
Extra support: Core–shell-structured magnetic nanocatalysts have been prepared and used as efficient heterogeneous catalysts for the aerobic oxidation of styrene. Mildly reduced graphene oxide (MRGO; see picture)/Fe3O4@C–salen–Co showed over 91 % conversion of styrene and over 52 % selectivity to the styrene oxide. The materials can be easily recovered through simple magnetic separation.
Zhifang Li, Shujie Wu, Dafang Zheng, Hong Ding, Xiufang Wang, Xiaoyuan Yang, Qisheng Huo, Jingqi Guan, Qiubin Kan
ChemPlusChem 2014, 79, No. 5, 716. Read article.
In the wings: A bis-phenolate with calixarene character influences the orientation of Jahn–Teller axes (shown by arrows in the figure) in a tetranuclear MnIII cluster. Structural changes and prevailing magnetic properties are presented.
Ross McLellan, Maria A. Palacios, Euan K. Brechin, Scott J. Dalgarno
ChemPlusChem 2014, 79, No. 5, 667. Read article.
Non-hinge binding: A novel organometallic protein kinase inhibitor scaffold based on a cyclometalated 1,8-phenanthrolin-7(8 H)-one ligand is reported, which binds to the ATP binding site of the protein kinase Pim1 in an unexpected, unusual non-ATP-mimetic fashion without mimicking the hydrogen-bonding interaction of the adenine nucleobase of ATP.
Kathrin Wähler, Katja Kräling, Holger Steuber, Eric Meggers
ChemistryOpen 2013, 2, No. 5-6, 180. Read article.
Trapped within: We report single-crystal characterization of polymorphs of the ammonium carbamate self-derivative salt of prolinamide, and the first crystal structure of prolinamide and of derived products. This study emphasizes the reactivity of carbonated amines in the solid state and opens perspectives for a systematic study of (solid-state) reactions involving these trapped reactive species.
Anaëlle Tilborg, Steve Lanners, Bernadette Norberg, Johan Wouters
ChemistryOpen 2013, 2, No. 5-6, 194. Read article.
Simple and effective: A facile procedure for monitoring chemical reactions and characterizing compounds dissolved in ionic liquids is described using the MS/MS technique. Separation of species of interest was carried out using internal electronic gate available in electrospray mass spectrometers, instead of chromatography and extraction. The separation was carried out as a fast (milliseconds) and sustainable (no extra solvents) procedure.
Levon L. Khemchyan, Elena A. Khokhlova, Marina M. Seitkalieva, Valentine P. Ananikov
ChemistryOpen 2013, 2, No. 5-6, 208. Read article.
Water purification with β-Bi2O3: A straightforward synthetic procedure for the synthesis of β-Bi2O3 nanoparticles that offers the potential for gram-scale production is presented. The β-Bi2O3 nanoparticles show high photocatalytic activity and stability in the degradation of typical organic water pollutants under visible light irradiation. These nanoparticles might be promising materials for use in novel water purification systems.
Maik Schlesinger, Marcus Weber, Steffen Schulze, Michael Hietschold, Michael Mehring
ChemistryOpen 2013, 2, No. 4, 146. Read article.