Chemistry - A European Journal (Chem Eur J)

Publisher: Gesellschaft Deutscher Chemiker; Koninklijke Nederlandse Chemische Vereniging; Société royale de chimie (Belgium); Koninklijke Vlaamse Chemische Vereniging; Società chimica italiana; All authors, Wiley-VCH Verlag

Journal description

Since 1995 Chemistry - A European Journal is the new international forum based in Europe for the publication of outstanding Full Papers from all areas of chemistry and related fields. Chemistry increases the visibility of European chemistry and attracts authors and readers worldwide under the motto "Made in Europe for the World". It appears bimonthly and has established itself as a truly international journal with top quality contributions from Europe the US and Japan. All manuscripts are peer-reviewed and electronic processing ensures accurate reproduction of text and data and short publication times. An additional "Concepts" section in Chemistry provides the nonspecialist reader with a useful conceptual guide to unfamiliar areas and the expert with new angles on familiar problems. For information about the European Journals see Editorial . Society Affiliations 14 European Chemical Societies Kurztext Chemistry - A European Journal publiziert seit 1995 "Full Papers" aus allen Gebieten der Chemie einschließlich ihrer Grenzbereiche. Sie erscheint zweimal monatlich. Als europäisches Forum für ausführliche Originalpublikationen zieht sie Beiträge von international bekannten Autoren aus der ganzen Welt an und ist daher für jeden Chemiker unverzichtbar. Die Rubrik "Concepts" führt Nicht-Spezialisten in neue Gebiete ein und stellt Spezialisten bekannte Probleme aus einem neuen Blickwinkel vor. Informationen über die "European Journals" siehe: Editorial . Readers Chemists of all disciplines

Current impact factor: 5.73

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 5.731
2013 Impact Factor 5.696
2012 Impact Factor 5.831
2011 Impact Factor 5.925
2010 Impact Factor 5.476
2009 Impact Factor 5.382
2008 Impact Factor 5.454
2007 Impact Factor 5.33
2006 Impact Factor 5.015
2005 Impact Factor 4.907
2004 Impact Factor 4.517
2003 Impact Factor 4.353
2002 Impact Factor 4.238
2001 Impact Factor 4.614
2000 Impact Factor 4.698
1999 Impact Factor 4.814
1998 Impact Factor 5.153
1997 Impact Factor 4.828
1996 Impact Factor 4.814

Impact factor over time

Impact factor

Additional details

5-year impact 5.64
Cited half-life 4.40
Immediacy index 1.26
Eigenfactor 0.20
Article influence 1.44
Website Chemistry - A European Journal website
Other titles Chemistry (Weinheim an der Bergstrasse, Germany: Online), Chemistry, Angewandte Chemie (International ed. in English: Online), Angewandte Chemie (Weinheim an der Bergstrasse, Germany: Online), Chembiochem (Online), Chemphyschem (Online)
ISSN 1521-3765
OCLC 42084594
Material type Document, Periodical, Internet resource
Document type Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Wiley-VCH Verlag

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  • Post-print
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  • Conditions
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    • Some journal exceptions-check individual homepages
  • Classification

Publications in this journal

  • Prasad V. Bharatam · Minhajul Arfeen · Neha Patel · Priyanka jain · Sonam Bhatia · Asit K. Chakraborti · Sadhika Khullar · Vijay Gupta · Sanjay K. Mandal ·

    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201503618
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    ABSTRACT: A highly stable 75 wt % BiOClx Br1-x -loaded alumina composite film has been developed for the fabrication of glass-based photoreactors. A very simple approach has been adopted that does not involve the use of a special instrument and can be applied to all types of substrates irrespective to their size and shape. The structure and morphology of the films were well characterized by XRD, SEM, TEM, N2 -sorption, IR, Raman, and UV/Vis diffuse reflectance spectroscopy. BiOClx Br1-x microspheres (1-3 μm) with closely packed thin nanoplates (width ≈10 nm) were integrated within alumina to develop a hybrid film. The photocatalytic capacity of the films was evaluated for the decomposition of Rhodamine B (RhB) and naphthalene under visible-light irradiation. The composite films showed a remarkable photocatalytic activity and stability and have been reused for several cycles without any deterioration of their original activity.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201503900
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    ABSTRACT: The activation of element hydrogen bonds by means of metal-ligand cooperation has received increasing attention as alternative to classical activation processes which exclusively occur at the metal center. Carbene complexes derived from methandiide precursors have been applied in this chemistry enabling the activation of a series of E-H bonds by addition reactions across the M=C bond. Yet, no chiral carbene complexes have been applied to realize stereoselective transformations. Herein, we report the isolation and structure elucidation of an enantiomerically pure dilithiomethane, which could be prepared by direct double deproto¬nation. The obtained dilithium salt was used for the preparation of the first chiral methandiide derived carbene complex, which was applied in stereoselective cooperative S-H bond activation.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201504724
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    ABSTRACT: The modes of catalytic action of three squaramide-derived bifunctional organocatalysts have been investigated using DFT methods. The [5+2] cycloaddition between oxidopyrylium ylides and enals has been used as model reaction. Two primary modes are possible for the different catalysts studied. The preference for one mode over the other is due to the possibility of additional favourable π,π-interactions between the H-bond activated pyrylium ylide and an electron-deficient aromatic ring bonded to a squaramide NH-group. The model can be extended to other reactions catalyzed by the same catalysts such as formal [2+2] cycloadditions between nitroalkenes and α,β-unsaturated aldehydes. The computational results are in excellent concurrence with the available experimental reports on the observed total enantioselectivity and differences in diastereoselectivity depending on the substrate and the reaction.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201504705
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    ABSTRACT: The inhibition of the G protein-coupled receptor, relaxin family peptide receptor 1 (RXFP1), by a small LDLa protein may be a potential approach for prostate cancer treatment. However, it is a significant challenge to chemically produce the 41-residue and three-disulfide cross-bridged LDLa module which is highly prone to aspartimide formation due to the presence of several aspartic acid residues. Known palliative measures, including addition of HOBt to piperidine for N(α) -deprotection, failed to completely overcome this side reaction. For this reason, an elegant native chemical ligation approach was employed in which two segments were assembled for generating the linear LDLa protein. Acquisition of correct folding was achieved by using either a regioselective disulfide bond formation or global oxidation strategies. The final synthetic LDLa protein obtained was characterized by NMR spectroscopic structural analysis after chelation with a Ca(2+) ion and confirmed to be equivalent to the same protein obtained by recombinant DNA production.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201503599
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    ABSTRACT: Large zeolite crystals of ferrierite have been used to study the deactivation, at the single particle level, of the alkyl isomerisation catalysis of oleic acid and elaidic acid by a combination of visible micro-spectroscopy and fluorescence microscopy (both polarised wide-field and confocal modes). The large crystals did show the desired activity, albeit only traces of the isomerisation product were obtained and low conversions were achieved compared to commercial ferrierite powders. This limited activity is in line with their lower external non-basal surface area, supporting the hypothesis of pore mouth catalysis. Further evidence for the latter comes from visible micro-spectroscopy, which shows that the accumulation of aromatic species is limited to the crystal edges, while fluorescence microscopy strongly suggests the presence of polyenylic carbocations. Light polarisation associated with the spatial resolution of fluorescence microscopy reveals that these carbonaceous deposits are aligned only in the larger 10-MR channels of ferrierite at all crystal edges. The reaction is hence further limited to these specific pore mouths.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201503551
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    ABSTRACT: The energy performance of solid energetic materials (Al, Mg, etc.) is typically restricted by a natural passivation layer and the diffusion-limited kinetics between the oxidizer and the metal. In this work, we use polytetrafluoroethylene (PTFE) as the fluorine carrier and the shielding layer to construct a new type of nano-Al based fuels. The PTFE shell not only prevents nano-Al layers from oxidation, but also assists in enhancing the reaction kinetics, greatly improving the stability and reactivity of fuels. An in situ chemical vapor deposition combined with the electrical explosion of wires (EEW) method is used to fabricate core-shell nanostructures. Studies show that by controlling the stoichiometric ratio of the precursors, the morphology of the PTFE shell and the energy performance can be easily tuned. The resultant composites exhibit superior energy output characters than that of their physically mixed Al/PTFE counterparts. This synthetic strategy might provide a general approach to prepare other high-energy fuels (Mg, Si).
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201503850
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    ABSTRACT: Herein, we report the synthesis of polyfunctional BODIPY building blocks suitable to be subjected to several reaction sequences with complete chemoselectivity, thereby allowing the preparation of complex BODIPY derivatives in a versatile and programmable manner. The reactions included the Liebeskind-Srogl cross-coupling reaction (LSCC), nucleophilic aromatic substitution (SN Ar), Suzuki, Sonogashira, and Stille couplings, and a desulfitative reduction of the MeS group. This novel synthetic protocol is a powerful route to design a library of compounds with tailored photophysical properties for advanced applications. In this context, it is noteworthy that it offers a straightforward and cost-effective strategy to shift the BODIPY emission deep into the near-infrared spectral region while retaining high fluorescence quantum yields as well as highly efficient and stable laser action. These new dyes outperform the lasing behaviour of dyes considered as benchmarks over the red spectral region, overcoming the important drawbacks associated with these commercial laser dyes, namely low absorption at the standard pump wavelengths (355 and 532 nm) and/or poor photostability.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201503090
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    ABSTRACT: Understanding the factors that control the magnitude and symmetry of magnetic anisotropy should facilitate the rational design of mononuclear metal complexes in the quest for single-molecule magnets (SMMs), based on a single metal ion, with high blocking temperatures and large energy barriers. The best strategy is to define magnetostructural correlations through the investigation of a series of metal complexes. It has been demonstrated that the main contribution to the magnetic anisotropy arises from the spin-orbit coupling (SOC) effect in metal-ion-based systems, so current studies focus particularly on the use of both ligands and metal ions possessing a large SOC. In this context, we report a unique series of halide Co(III) complexes, [CoL(X)], with X=Cl, Br, I (CoX) and L=2,2'-(2,2'-bipyridine-6,6'-diyl)bis(1,1-diphenylethanethiolate), which possess a rare intermediate S=1 spin ground state. The S=1 Co(III) complexes are attractive species because they possess a remarkably large axial zero-field splitting (defined by D from the following Hamiltonian: H=DSz (2) ), as well as the halide ligands inducing large SOC constants. The single-crystal X-ray structures reveal that the CoBr and CoI complexes are isostructural with the previously described CoCl complex. Their coordination sphere displays a distorted pentacoordinated square pyramidal geometry, with the halide located in the Co(III) axial position. Large positive D values of 35, 26, and 18 cm(-1) are found for CoCl, CoBr, and CoI, respectively, through analysis of the magnetic susceptibility data as a function of temperature. To rationalize this trend, theoretical calculations based on both density functional theory (DFT) and complete active space self-consistent field (CASSCF) methods are performed successfully. Both the sign and magnitude of D are predicted remarkably well by these theoretical approaches. The DFT calculations also show that the resulting D values originate from a balance of several contributions, and that many factors, including differences in their structural properties and in the contribution of the halide, should be taken into account to explain the trend of D in this series of complexes.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201502997
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    ABSTRACT: For the first time, a versatile electrolyte bath is described that can be used to electrodeposit a wide range of p-block elements from supercritical difluoromethane (scCH2 F2 ). The bath comprises the tetrabutylammonium chlorometallate complex of the element in an electrolyte of 50×10(-3) mol dm(-3) tetrabutylammonium chloride at 17.2 MPa and 358 K. Through the use of anionic ([GaCl4 ](-) , [InCl4 ](-) , [GeCl3 ](-) , [SnCl3 ](-) , [SbCl4 ](-) , and [BiCl4 ](-) ) and dianionic ([SeCl6 ](2-) and [TeCl6 ](2-) ) chlorometallate salts, the deposition of elemental Ga, In, Ge, Sn, Sb, Bi, Se, and Te is demonstrated. In all cases, with the exception of gallium, which is a liquid under the deposition conditions, the resulting deposits are characterised by SEM, energy-dispersive X-ray analysis, XRD and Raman spectroscopy. An advantage of this electrolyte system is that the reagents are all crystalline solids, reasonably easy to handle and not highly water or oxygen sensitive. The results presented herein significantly broaden the range of materials accessible by electrodeposition from supercritical fluid and open up the future possibility of utilising the full scope of these unique fluids to electrodeposit functional binary or ternary alloys and compounds of these elements.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201503301
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    ABSTRACT: An unnatural amino acid, 4-(2-azidoethoxy)-L-phenylalanine (AePhe, 1), was designed and synthesized in three steps from known compounds in 54 % overall yield. The sensitivity of the IR absorption of the azide of AePhe was established by comparison of the frequency of the azide asymmetric stretch vibration in water and dimethyl sulfoxide. AePhe was successfully incorporated into superfolder green fluorescent protein (sfGFP) at the 133 and 149 sites by using the amber codon suppression method. The IR spectra of these sfGFP constructs indicated that the azide group at the 149 site was not fully solvated despite the location in sfGFP and the three-atom linker between the azido group and the aromatic ring of AePhe. An X-ray crystal structure of sfGFP-149-AePhe was solved at 1.45 Å resolution and provides an explanation for the IR data as the flexible linker adopts a conformation which partially buries the azide on the protein surface. Both sfGFP-AePhe constructs efficiently undergo a bioorthogonal strain-promoted click cycloaddition with a dibenzocyclooctyne derivative.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201503908
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    ABSTRACT: In recent decades, N-heterocyclic carbenes have become established as a prevalent family of organocatalysts. N-Heterocyclic olefins, the alkylidene derivatives of N-heterocyclic carbenes, have recently also emerged as efficient promoters for CO2 fixation and polymerization reactions. Their extraordinarily strong Lewis/Brønsted basicity suggests great potential as a new class of organocatalysts for a broad range of reactions in synthetic chemistry.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201503575
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    ABSTRACT: Energy conversion schemes have attracted considerable attention in recent years. A large amount of research effort has focused on fullerenes, particularly C60 and its derivatives, as suitable electron acceptors, owing to their outstanding properties. In this context, C59 N-based donor-acceptor systems have lately attracted attention, owing to their exceptional energy-and electron-transfer properties. As a result, chemical derivatization of C59 N plays an important role in the realization of the aforementioned systems. The current Minireview aims to familiarize researchers with the main aspects of azafullerene synthesis, chemistry, and photophysical properties, while it mainly focuses on the synthetic methodologies employed for as well as on energy conversion schemes of azafullerene-based donor-acceptor systems.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201502190
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    ABSTRACT: Examples of polynuclear metallomesogens are few. Herein,1,2,4-triazole ligands were used to prepare mono- and polynuclear silver(I) triazole metallomesogens. Besides showing an SmA phase in the mesophase, two interesting properties were observed. First, higher ion conductivity is always found for the polynuclear complexes than for the mononuclear complexes with the same anion, an observation contrary to the knowledge that migration of a monomeric cation should be faster than that of a polymeric cation. Second, thermolysis of the polynuclear silver(I) triazole complexes in the assembled mesophase yielded Ag nanowires, in an excellent demonstration of the assembled nature of the polynuclear silver(I) ions in the thermolysis process.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201502823
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    ABSTRACT: The zirconium-mediated synthesis of a new class of air-stable spirocyclic germafluorene-germole (SGG) luminogens is reported. These species contain ring-fused germafluorene and germole units that display color-tunable fluorescence when peripheral aryl substituents are appended. Three distinct pathways are introduced for SGG modification (Stille, Suzuki-Miyaura, and zirconocene-mediated couplings), which enable the preparation of new libraries of molecular and polymeric SGG light-emitters with tunable luminescence and desirable thermal- and photo-stability.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201503377
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    ABSTRACT: A polyoxometalate-based molecular triangle has been synthesized through the metal-driven self-assembly of covalent organic/inorganic hybrid oxo-clusters with remote pyridyl binding sites. The new metallomacrocycle was unambiguously characterized by using a combination of (1) H NMR spectroscopy, 2D diffusion NMR spectroscopy (DOSY), electrospray ionization travelling wave ion mobility mass spectrometry (ESI-TWIM-MS), small-angle X-ray scattering (SAXS) and molecular modelling. The collision cross-sections obtained from TWIM-MS and the hydrodynamic radii derived from DOSY are in good agreement with the geometry-optimized structures obtained by using theoretical calculations. Furthermore, SAXS was successfully employed and proved to be a powerful technique for characterizing such large supramolecular assemblies.
    Chemistry - A European Journal 11/2015; DOI:10.1002/chem.201503363