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

  • Pre-print
    • Author cannot archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • Upon funder agreement with publisher
  • Conditions
    • Pre-print may be deposited on personal intranet or institutional intranet repository, but not on a public repository
    • Pre-print must not updates with future versions
    • Published source must be acknowledged with set phrases (See policy)
    • Must link to publisher's site:
    • Publisher's version/PDF cannot be used
    • Some journal exceptions-check individual homepages
  • Classification
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Publications in this journal

  • Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201502758
  • Kun Guo · Xiaolan Chen · Jingyu Zhang · Yingsheng Zhao
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    ABSTRACT: Biaryls, which contained a benzyloxy motif, were directly constructed through a ligand-promoted PdII-catalyzed ortho-arylation of masked aromatic alcohols. A variety of acetoxime ethers could be coupled with a diverse range of arylboronic acid pinocol esters, giving direct access to bioactive biaryls in modest to good yield. Not only could acetoxime be subsequently removed without a separation, functionalized hydroxylamine derivatives could also be obtained.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201503284
  • Rongala Ramalakshmi · Koushik Saha · Dipak Kumar Roy · Babu Varghese · Ashwini K Phukan · Sundargopal Ghosh
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    ABSTRACT: A series of agostic σ-borane/borate complexes have been synthesized and structurally characterized from simple borane adducts. A room-temperature reaction of [Cp*Mo(CO)3 Me], 1 with Li[BH3 (EPh)] (Cp*=pentamethylcyclopentadienyl, E=S, Se, Te) yielded hydroborate complexes [Cp*Mo(CO)2 (μ-H)BH2 EPh] in good yields. With 2-mercapto-benzothiazole, an N,S-carbene-anchored σ-borate complex [Cp*Mo(CO)2 BH3 (1-benzothiazol-2-ylidene)] (5) was isolated. Further, a transmetalation of the B-agostic ruthenium complex [Cp*Ru(μ-H)BHL2 ] (6, L=C7 H4 NS2 ) with [Mn2 (CO)10 ] affords a new B-agostic complex, [Mn(CO)3 (μ-H)BHL2 ] (7) with the same structural motif in which the central metal is replaced by an isolobal and isoelectronic [Mn(CO)3 ] unit. Natural-bond-orbital analyses of 5-7 indicate significant delocalization of the electron density from the filled σBH orbital to the vacant metal orbital.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201503404
  • Boris Vabre · Yves Canac · Christine Lepetit · Carine Duhayon · Remi Chauvin · Davit Zargarian
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    ABSTRACT: This contribution reports on a new family of Ni(II) pincer complexes featuring phosphinite and functional imidazolyl arms. The proligands (R) PIMC(H) OP(R') react at room temperature with Ni(II) precursors to give the corresponding complexes [((R) PIMCOP(R') )NiBr], where (R) PIMCOP(R) =κ(P) ,κ(C) ,κ(P) -{2-(R'2 PO),6-(R2 PC3 H2 N2 )C6 H3 }, R=iPr, R'=iPr (3 b, 84 %) or Ph (3 c, 45 %). Selective N-methylation of the imidazole imine moiety in 3 b by MeOTf (OTf=OSO2 CF3 ) gave the corresponding imidazoliophosphine [((iPr) PIMIOCOP(iPr) )NiBr][OTf], 4 b, in 89 % yield ((iPr) PIMIOCOP(iPr) =κ(P) ,κ(C) ,κ(P) -{2-(iPr2 PO),6-(iPr2 PC4 H5 N2 )C6 H3 }). Treating 4 b with NaOEt led to the NHC derivative [(NHCCOP(iPr) )NiBr], 5 b, in 47 % yield (NHCCOP(iPr) =κ(P) ,κ(C) ,κ(C) -{2-(iPr2 PO),6-(C4 H5 N2 )C6 H3 )}). The bromo derivatives 3-5 were then treated with AgOTf in acetonitrile to give the corresponding cationic species [((R) PIMCOP(R) )Ni(MeCN)][OTf] [R=Ph, 6 a (89 %) or iPr, 6 b (90 %)], [((R) PIMIOCOP(R) )Ni(MeCN)][OTf]2 [R=Ph, 7 a (79 %) or iPr, 7 b (88 %)], and [(NHCCOP(R) )Ni(MeCN)][OTf] [R=Ph, 8 a (85 %) or iPr, 8 b (84 %)]. All new complexes have been characterized by NMR and IR spectroscopy, whereas 3 b, 3 c, 5 b, 6 b, and 8 a were also subjected to X-ray diffraction studies. The acetonitrile adducts 6-8 were further studied by using various theoretical analysis tools. In the presence of excess nitrile and amine, the cationic acetonitrile adducts 6-8 catalyze hydroamination of nitriles to give unsymmetrical amidines with catalytic turnover numbers of up to 95.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201502491
  • Victor N Nemykin · Hannah M Rhoda · Kallupa Chanawanno · Alexander J King · Yuriy V Zatsikha · Christopher J Ziegler
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    ABSTRACT: The first organometallic BOPHY containing two ferrocene substituents was prepared via a Knoevenagel condensation between tetramethyl substituted BOPHY and ferrocene carboxaldehyde. An unprecedentedly strong long-range (~17.2 Å) metal-metal coupling in this new complex was investigated using electrochemical, spectroelectrochemical, and chemical oxidation methods. Electrochemical data is indicative of a 200 mV separation between the first and the second ferrocene-centered oxidation processes. Formation of the mixed valence states and appearance and disappearance of two NIR bands were observed during stepwise oxidation of the first organometallic BOPHY. The electronic structure and the nature of the excited states in this new chromophore were studied by DFT and TDDFT calculations.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201504004
  • Bernd Kohl · Frank Rominger · Michael Mastalerz
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    ABSTRACT: Organic molecules of intrinsic microporosity (OMIMs) are structurally constructed to not pack tightly. Consequently, only weak interactions between OMIM molecules can occur, which is the reason that almost all OMIMs have been described and investigated in their amorphous states. For the same reason it is very difficult to grow single crystals of OMIMs for X-ray structural analysis. Here we describe four different polymorphs of an OMIM that was before only described in the amorphous state.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201502847
  • Zhuo-Wei Wang · Min Chen · Chun-Sen Liu · Xi Wang · Hui Zhao · Miao Du
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    ABSTRACT: A unique Al(III) -based metal-organic framework (467-MOF) with two types of square channels has been designed and synthesized by using a flexible tricarboxylate ligand under solvothermal conditions. 467-MOF exhibits superior thermal and chemical stability and, moreover, shows high CO2 sorption selectivity over H2 , with a selectivity, based on the ideal adsorbed solution theory (IAST) of approximately 45 at 273 or 293 K. Furthermore, its solvent-dependent photoluminescence makes it an applicable sensor in the detection of nitrobenzene explosives through fluorescence quenching.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201502615
  • Nicholas Ballard · David Mecerreyes · José M Asua
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    ABSTRACT: Controlled radical polymerization (CRP) and dye-sensitized solar cells (DSSCs) are two fields of research that at an initial glance appear to have little in common. However, despite their obvious differences, both in application and in scientific nature, a closer look reveals a striking similarity between many of the compounds widely used as control agents in radical polymerization and as redox couples in dye-sensitized solar cells. Herein, we review the various redox active compounds used and examine the characteristics that give them the ability to perform this dual function. In addition we explore the advances in the understanding of the structural features that enhance their activity in both CRP and DSSCs. It is hoped that such a comparison will be conducive to improving process performance in both fields.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201503098
  • Kohei Yamashita · Yuki Fujii · Shohei Yoshioka · Hiroshi Aoyama · Hirofumi Tsujino · Tadayuki Uno · Hiromichi Fujioka · Mitsuhiro Arisawa
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    ABSTRACT: N-Alkyl-N-allyl-2-alkynylaniline derivatives undergo a tandem ring-closing enyne metathesis/isomerization/Diels-Alder cycloaddition sequence in the presence of a second-generation Grubbs catalyst and dienophiles. In practice, the acyclic enyne in the presence of the ruthenium alkylidene first undergoes ring-closing metathesis to generate cyclic 4-vinyl-1,2-dihydroquinolines; following diene isomerization and then the addition of a dienophile, these ring-closing metathesis products are selectively converted into a 7-methyl-4H-naphtho[3,2,1-de]quinoline-8,11-dione core. Overall, the reaction sequence converts simple aniline derivatives into π-conjugated small molecules, which have characteristic absorption in the near-infrared region, in a single operation through three unique ruthenium-catalyzed transformations.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201502313
  • Qiang Gao · Linyi Bai · Yongfei Zeng · Peng Wang · Xiaojing Zhang · Ruqiang Zou · Yanli Zhao
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    ABSTRACT: Covalent organic frameworks (COFs) are periodic two- or three-dimensional polymeric networks with high surface areas, low density, and designed structures. Because COFs are normally prepared based on reversible formation of covalent bonds with relatively weak stability, their structures can be easily broken or damaged due to changes in the surrounding environment. Thus, developing strategies to realize the reconstruction of COFs in order to extend their usage lifetime is crucial for practical applications. In addition, exploring the kinetics of COF growth under varied reaction conditions is important for better understanding the nucleation and growth processes of COFs. In this work, the reformation mechanism of an imine-based COF using an ex situ characterization method was investigated, disclosing an interesting COF reconstruction progress from disorder to order. The present study shows the regeneration ability of COFs, and the developed method could be generalized for broader use in the field.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201503053
  • Yuehui Li · Iván Sorribes · Cristian Vicent · Kathrin Junge · Matthias Beller
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    ABSTRACT: Methylation of amines is a fundamental and commonly used reaction in organic synthesis. Many methods are known including various reductive methylations using formaldehyde, formic acid, or carbon dioxide in the presence of reductants. However, several of these methods suffer from limited substrate scope and chemoselectivity because of the different nucleophilicities of substrates. In this respect, the combination of carbonates and hydrosilanes is a valuable methylation source in the presence of Pt-based catalysts. This highly tunable method allows for methylation of both aromatic and aliphatic amines, and chemoselective methylation of aminoalcohols and diamines. Notably, the in situ-formed catalyst can also be used for the reduction of carbonates to methanol at room temperature. Mechanistic insights on intermediates formed during the reaction pathway were obtained by using ESI mass spectrometry.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201502917
  • Pengchong Xue · Boqi Yao · Panpan Wang · Peng Gong · Zhenqi Zhang · Ran Lu
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    ABSTRACT: An L-phenylalanine derivative (C12PhBPCP) consisting of a strong emission fluorophore with benzoxazole and cyano groups is designed and synthesized to realize dual responses to volatile acid and organic amine vapors. The photophysical properties and self-assembly of the said derivative in the gel phase are also studied. C12PhBPCP can gelate organic solvents and self-assemble into 1 D nanofibers in the gels. UV/Vis absorption spectral results show H-aggregate formation during gelation, which indicates strong exciton coupling between fluorophores. Both wet gel and xerogel emit strong green fluorescence because the cyano group suppresses fluorescence quenching in the self-assemblies. Moreover, the xerogel film with strong green fluorescence can be used as a dual chemosensor for quantitative detection of volatile acid and organic amine vapors with fast response times and low detection limits owing to its large surface area and amplified fluorescence quenching. The detection limits are 796 ppt and 25 ppb for gaseous aniline and trifluoroacetic acid (TFA), respectively.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201502401
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    ABSTRACT: Cyclo-oligo-(1→6)-β-D-glucosamines functionalized with hydrophobic tails are reported as a new class of transmembrane ion-transport system. These macrocycles with hydrophilic cavities were introduced as an alternative to cyclodextrins, which are supramolecular systems with hydrophobic cavities. The transport activities of these glycoconjugates were manipulated by altering the oligomericity of the macrocycles, as well as the length and number of attached tails. Hydrophobic tails of 3 different sizes were synthesized and coupled with each glucosamine scaffold through the amide linkage to obtain 18 derivatives. The ion-transport activity increased from di- to tetrameric glucosamine macrocycles, but decreased further when flexible pentameric glucosamine was introduced. The ion-transport activity also increased with increasing length of attached linkers. For a fixed length of linkers, the transport activity decreased when the number of such tails was reduced. All glycoconjugates displayed a uniform anion-selectivity sequence: Cl(-) >Br(-) >I(-) . From theoretical studies, hydrogen bonding between the macrocycle backbone and the anion bridged through water molecules was observed.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201502656
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    ABSTRACT: The hierarchical self-assembling of complex molecular systems is dictated by the chemical and structural information stored in their components. This information can be expressed through an adaptive process that determines the structurally fittest assembly under given environmental conditions. We have set up complex disulfide-based dynamic covalent libraries of chemically and topologically diverse pseudopeptidic compounds. We show how the reaction evolves from very complex mixtures at short reaction times to the almost exclusive formation of a major compound, through the establishment of intramolecular noncovalent interactions. Our experiments demonstrate that the systems evolve through error-check and error-correction processes. The nature of these interactions, the importance of the folding and the effects of the environment are also discussed.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201501415
  • Dhandapani Ganapathy · Johannes R. Reiner · Lorenz E. Löffler · Ling Ma · Boopathy Gnanaprakasam · Benedikt Niepötter · Ingo Koehne · Lutz F. Tietze
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    ABSTRACT: The first enantioselective synthesis of a secalonic acid containing a dimeric tetrahydroxanthenone skeleton is described, using a Wacker-type cyclization of a methoxyphenolic compound to form a chiral chroman with a quaternary carbon stereogenic center with >99 % ee. Further steps are a Sharpless dihydroxylation and a Dieckmann condensation to give a tetrahydroxanthenone. A late-stage one-pot palladium-catalyzed Suzuki-dimerization reaction leads to the 2,2′-biphenol linkage to complete the enantioselective total synthesis of secalonic acid E in 18 steps with 8 % overall yield.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201503593
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    ABSTRACT: A new structural polyoxometalate motif, [{Ni4 (OH)3 AsO4 }4 (B-α-PW9 O34 )4 ](28-) , which contains the highest nuclearity structurally characterized multi-nickel-containing polyanion to date, has been synthesized and characterized by single-crystal X-ray diffraction, temperature-dependent magnetism and several other techniques. The unique central {Ni16 (OH)12 O4 (AsO4 )4 } core shows dominant ferromagnetic exchange interactions, with maximum χm T of 69.21 cm(3) K mol(-1) at 3.4 K. Significantly, this structurally unprecedented complex is an efficient, water-compatible, noble-metal-free catalyst for H2 production upon visible light irradiation (photosensitizer=[Ir(ppy)2 (dtbbpy)][PF6 ]; sacrificial electron donor=triethylamine or triethanolamine). The highest turnover number of approximately 580, corresponding to a best quantum yield of approximately 4.07 %, is achieved when using triethylamine as electron donor in the presence of water. The mechanism of this photodriven process has been probed by time-solved luminescence and by static emission quenching.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201503010
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    ABSTRACT: Analytically pure C60 H18 is obtained by a Ru3 cluster complexation and decomplexation method. The crystal structure of C60 H18 consists of one flattened hemisphere, to which all 18 hydrogen atoms are symmetrically bonded, and one curved hemisphere akin to C60 . A benzenoid ring in the flattened hemisphere is isolated from the residual π systems by a belt composed of sp(3) -hybridized CH units. The average out-of-plane distances for carbon atoms attached to the benzenoid ring (0.14 Å) is substantially larger than that found in C60 F18 (0.06 Å). Several long C(sp(3) )C(sp(3) ) single bond lengths [1.61(3)-1.65(3) Å] are observed for C60 H18 . The reaction of [Ru3 (CO)12 ] and C60 H18 produces [Ru3 (CO)9 (μ3 -η(2) ,η(2) ,η(2) -C60 H18 )] (1), where the Ru3 triangle is regiospecifically linked to the hexagon opposite to the benzenoid ring. Compound 1 is the first transition metal complex of a polyhydrofullerene (fullerane). C60 H18 and 1 have been characterized by (1) H and (13) C NMR, UV/Vis, and mass spectroscopies. The HOMO-LUMO gap of C60 H18 is evaluated to be 1.51 V by cyclic voltammetry.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201503410
  • Chemistry - A European Journal 10/2015;
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    ABSTRACT: Among the Aspidosperma-derived monoterpene indole alkaloids, the leuconoxine subgroup has drawn significant attention from the synthetic community during the past few years. This Minireview summarizes the hitherto six completed total syntheses of leuconoxines emphasizing the different strategies for assembling the key structural motif, an unprecedented diaza[]fenestrane skeleton. In addition, the proposed biogenetic relationships within the group of these alkaloids are described.
    Chemistry - A European Journal 10/2015; DOI:10.1002/chem.201502228