Angewandte Chemie International Edition (Angew Chem Int Ed)

Publisher: Gesellschaft Deutscher Chemiker, Wiley-VCH Verlag

Journal description

Angewandte Chemie is one of the prime chemistry journals in the world with an ISI-measured Impact Factor higher than those of comparable journals (1999: 7.996). Moreover it is the only journal in the field to have a stimulating mixture of review articles highlights and short communications. The "reviews" written by leading experts summarize the important results of recent research on topical subjects in all branches of chemistry point to unresolved problems and discuss possible developments. The "highlights" provide concise evaluations of current trends in chemical research. The communications are critically selected and report on the latest research results making the journal indispensable to the chemist who wants to stay well informed. Angewandte Chemie also regularly publishes Nobel lectures in chemistry and related fields. Kurztext Auch die internationale Ausgabe der Angewandten Chemie zählt zu den führenden bedeutenden Chemiezeitschrifent weltweit. Chemiker wissen daß sie hier das Neueste aus der Chemie bestens aufbereitet vorfinden. Society Affiliation German Chemical Society ( Gesellschaft Deutscher Chemiker ) Readers Chemists of all disciplines

Current impact factor: 11.26

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2011 Impact Factor 13.455

Additional details

5-year impact 13.56
Cited half-life 5.50
Immediacy index 2.96
Eigenfactor 0.54
Article influence 3.50
Website Angewandte Chemie International Edition website
Other titles Angewandte Chemie (International ed. in English: Online), Angewandte Chemie, Angewandte Chemie international edition in English, Angewandte Chemie international edition
ISSN 1521-3773
OCLC 43968233
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Wiley-VCH Verlag

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Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Nickel nanoparticles, formed in situ and used in combination with micellar catalysis, catalyze Suzuki-Miyaura cross-couplings in water under very mild reaction conditions. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201505136
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    ABSTRACT: A microporous crystalline silica zeolite of the MEL structure type and three other zeolite analogues composed of germanosilicate frameworks were synthesized using tributylsulfonium, triphenylsulfonium, or tri(para-tolyl)sulfonium as the structure-directing agent. The germanosilicates thus obtained had ISV, ITT, or a new zeolite structure depending on the synthesis conditions. The structure of the new germanosilicate was solved using X-ray powder diffraction data with the aid of a charge-flipping method. The solution indicated a crystal structure belonging to the P63/mmc space group with cell parameters of a=16.2003 Å and c=21.8579 Å. After calcination, the new germanosilicate material exhibited two types of accessible micropores with diameters of 0.61 and 0.78 nm.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201506678
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    ABSTRACT: A new class of organogelators having a cyclohexane-1a,3a-diol motif capable of congealing non-polar liquids was developed. These gelators underwent crystallization at low concentration and gelation above the critical gelation concentration (CGC) in the same solvent. The crystals and gel fibers were analyzed by single crystal XRD and PXRD respectively, which revealed their different modes of assembly. The XRD studies and thermogravimetric analysis (TGA) confirmed that the crystals contain a water of crystallization whereas the gel fibers do not. A systematic study revealed that when the concentration of the gelator exceeds that of adventitious water in the solvent, it congeals the solvent and when the concentration of the gelator is less than water, it undergoes crystallization. This unprecedented stoichiometric sensing behavior in deciding the mode of self-assembly offers a handle to opt between mutually competing gelation and crystallization. We have confirmed that the system can be biased to congeal or crystallize by varying the amount of water.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201506544
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    ABSTRACT: Regulation of intracellular potassium (K(+) ) concentration plays a key role in metabolic processes. So far, only a few intracellular K(+) sensors have been developed. The highly selective fluorescent K(+) sensor KS6 for monitoring K(+) ion dynamics in mitochondria was produced by coupling triphenylphosphonium, borondipyrromethene (BODIPY), and triazacryptand (TAC). KS6 shows a good response to K(+) in the range 30-500 mM, a large dynamic range (Fmax /F0 ≈130), high brightness (ϕf =14.4 % at 150 mM of K(+) ), and insensitivity to both pH in the range 5.5-9.0 and other metal ions under physiological conditions. Colocalization tests of KS6 with MitoTracker Green confirmed its predominant localization in the mitochondria of HeLa and U87MG cells. K(+) efflux/influx in the mitochondria was observed upon stimulation with ionophores, nigericin, or ionomycin. KS6 is thus a highly selective semiquantitative K(+) sensor suitable for the study of mitochondrial potassium flux in live cells. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201506038
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    ABSTRACT: Azido 18F-arenes are important and versatile building blocks for the radiolabeling of biomolecules via Huisgen cycloaddition (“click chemistry”) for positron emission tomography (PET). However, routine access to such clickable agents is challenged by inefficient and/or poorly defined multistep radiochemical approaches. A high-yielding direct radiofluorination for azido 18F-arenes was achieved through the development of an ortho-oxygen-stabilized iodonium derivative (OID). This OID strategy addresses an unmet need for a reliable azido 18F-arene clickable agent for bioconjugation reactions. A ssDNA aptamer was radiolabeled with this agent and visualized in a xenograft mouse model of human colon cancer by PET, which demonstrates that this OID approach is a convenient and highly efficient way of labeling and tracking biomolecules.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201505927
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    ABSTRACT: The efficiency of solar-energy-conversion devices depends on the absorption region and intensity of the photon collectors. Organic chromophores, which have been widely stabilized on inorganic semiconductors for light trapping, are limited by the interface between the chromophore and semiconductor. Herein we report a novel orange zinc germanate (Zn-Ge-O) with a chromophore-like structure, by which the absorption region can be dramatically expanded. Structural characterizations and theoretical calculations together reveal that the origin of visible-light response can be attributed to the unusual metallic GeGe bonds which act in a similar way to organic chromophores. Benefiting from the enhanced light harvest, the orange Zn-Ge-O demonstrates superior capacity for solar-driven hydrogen production. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201505988
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    ABSTRACT: Understanding electronic communication among multiple chromophoric and redox units requires construction of well-defined molecular architectures. Herein, we report the modular synthesis of a shape-persistent chiral organic square composed of four naphthalene-1,8:4,5-bis(dicarboximide) (NDI) sides and four trans-1,2-cyclohexanediamine corners. Single crystal X-ray diffraction reveals some distortion of the cyclohexane chair conformation in the solid state. Analysis of the packing of the molecular squares reveals the formation of highly ordered, one-dimensional tubular superstructures, held together by means of multiple [CH⋅⋅⋅OC] hydrogen-bonding interactions. Steady-state and time-resolved electronic spectroscopies show strong excited-state interactions in both the singlet and triplet manifolds. Electron paramagnetic resonance (EPR) and electron-nuclear double resonance (ENDOR) spectroscopies on the monoreduced state reveal electron sharing between all four NDI subunits comprising the molecular square. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201504576
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    ABSTRACT: A direct transformation of carboxylic acid esters into arenes with 1,5-bifunctional organomagnesium reagents is described. This efficient and practical method enables the one-step defunctionalization of various carboxylic acid esters to prepare benzene, anthracene, tetracene, and pentacene derivatives. A double nucleophilic addition of the 1,5-organodimagnesium reagent to the ester is followed by an immediate 1,4-elimination reaction that leads to the direct [5+1] formation of a new aromatic ring. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201505414
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    ABSTRACT: One hundred years after his Nobel Prize, Richard Willstätter's achievements and the fascinating role he played in 20th Century chemistry are discussed in this Essay. Several of his discoveries, such as the anthocyanidins, cyclooctatetraene, the ortho-quinones, and the structure of cocaine, will forever be associated with his name. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201505507
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    ABSTRACT: Techniques based on fluorescence microscopy are increasingly used to count proteins in cells, but few stoichiometrically well-defined standards are available to test their accuracy. A selection of bacterial homo-oligomers were developed that contain 10-24 subunits and fully assemble when expressed in mammalian cells, and they can be used to easily validate/calibrate molecular counting methods. The utility of these standards was demonstrated by showing that nuclear pores contain 32 copies of the Nup107 complex. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201505664
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    ABSTRACT: Human noroviruses recognize histo blood group antigens (HBGAs) as cellular attachment factors. Recently, it has been discovered that norovirus infection can be significantly enhanced by HBGA binding. Yet the attachment process and how it promotes host-cell entry is only poorly understood. The binding of a norovirus protruding (P) domain of a predominant GII.4 Saga strain to HBGAs at atomic resolution was studied. So far, independent and equivalent multiple binding sites were held responsible for attachment. Using NMR experiments we show that norovirus-HBGA binding is a cooperative multi-step process, and native mass spectrometry reveals four instead of two HBGA binding sites per P-dimer. An accompanying crystallographic study has disclosed four instead of two L-fucose binding sites per P-dimer of a related GII.10 strain1 further supporting our findings. We have uncovered a novel paradigm for norovirus-HBGA recognition that will inspire further studies into norovirus–host interactions.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201505672
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    ABSTRACT: Nucleophilic substitution reactions of acetals having benzyloxy groups four carbon atoms away can be highly diastereoselective. The selectivity in several cases increased as the reactivity of the nucleophile increased, in violation of the reactivity/selectivity principle. The increase in selectivity with reactivity suggests that multiple conformational isomers of reactive intermediates can give rise to the products. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201503525
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    ABSTRACT: Inspired by the bicontinuous ionic-network structure of ionic liquids (ILs), we developed a new family of photofunctional ILs which show efficient triplet energy migration among contiguously arrayed ionic chromophores. A novel fluorescent IL, comprising an aromatic 9,10-diphenylanthracene 2-sulfonate anion and an alkylated phosphonium cation, showed pronounced interactions between chromophores, as revealed by its spectral properties. Upon dissolving a triplet sensitizer, the IL demonstrated photon upconversion based on triplet-triplet annihilation (TTA-UC). Interestingly, the TTA-UC process in the chromophoric IL was optimized at a much lower excitation intensity compared to the previous nonionic liquid TTA-UC system. The superior TTA-UC in this IL system is characterized by a relatively high triplet diffusion constant (1.63×10(-6) cm(2) s(-1) ) which is ascribed to the presence of ionic chromophore networks in the IL. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201505168
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    ABSTRACT: Stimuli-responsive DNA-functionalized nano- and microcontainers composed of mesoporous SiO2 nanoparticles (MP SiO2 NPs), microcapsules, or micelles/vesicles act as carriers for the transport and release of drugs. The information encoded in the DNA sequences provides instructive information for the gating of drug-loaded pores of MP SiO2 NPs, for the assembly and degradation of microcapsules or lipid-DNA micelles/vesicles, and for the targeting of nano-/microcontainers to cancer cells. Different triggers are applied to release the drugs loaded in the nano-/microcontainers by unlocking the pores of the MP SiO2 NPs or by degradation of the containers. These include the use of switchable DNA nanostructures (nucleic acid hairpins, i-motif, G-quadruplexes) and the implementation of chemical, thermal, or photonic stimuli. Also, catalytic processes stimulated by DNAzymes or enzymes are used to release drugs from the nano-/microcontainers. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201503054
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    ABSTRACT: An efficient copper-catalyzed enantioselective conjugate addition of dimethylzinc to α,β- and α,β,γ,δ-unsaturated 2-acyl-N-methylimidazoles has been achieved using a chiral bidentate hydroxyalkyl-NHC ligand. The reactions proceeded with both excellent regio- and enantioselectivity (14 examples, 87–95 % ee) to afford the desired 1,4-adducts, which were easily transformed to the corresponding aldehydes, esters, and ketones. Subsequently, this powerful methodology was therefore successfully applied in the synthesis of natural products. Furthermore, an iterative process was also disclosed leading to highly desirable 1,3-desoxypropionate skeletons (up to 94 % d.e.).
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201506189
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    ABSTRACT: The thermally stable [(tBuMe2 Si)2 M] (M=Zn, Hg) generate R3 Si(.) radicals in the presence of [(dmpe)Pt(PEt3 )2 ] at 60-80 °C. The reaction proceeds via hexacoordinate Pt complexes, (M=Zn (2 a and 2 b), M=Hg (3 a and 3 b)) which were isolated and characterized. Mild warming or photolysis of 2 or 3 lead to homolytic dissociation of the PtMSiR3 bond generating silyl radicals and novel unstable pentacoordinate platinum paramagnetic complexes (M=Zn (5), Hg (6)) whose structures were determined by EPR spectroscopy and DFT calculations. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201505805
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    ABSTRACT: Mononuclear molybdoenzymes catalyze a broad range of redox reactions and are highly conserved in all kingdoms of life. This study addresses the question of how the Mo cofactor (Moco) is incorporated into the apo form of human sulfite oxidase (hSO) by using site-directed spin labeling to determine intramolecular distances in the nanometer range. Comparative measurements of the holo and apo forms of hSO enabled the localization of the corresponding structural changes, which are localized to a short loop (residues 263-273) of the Moco-containing domain. A flap-like movement of the loop provides access to the Moco binding-pocket in the apo form of the protein and explains the earlier studies on the in vitro reconstitution of apo-hSO with Moco. Remarkably, the loop motif can be found in a variety of structurally similar molybdoenzymes among various organisms, thus suggesting a common mechanism of Moco incorporation. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
    Angewandte Chemie International Edition 08/2015; DOI:10.1002/anie.201504772