Publisher: Wiley-VCH Verlag

Journal description

ChemPlusChem is a peer-reviewed journal tailored to multidisciplinary chemistry and materials researchers from across the world. Fully comprehensive in its scope, ChemPlusChem publishes original papers covering at least two different aspects (subfields) of chemistry or one of chemistry and one of another scientific discipline (one chemistry topic plus another one, hence the title ChemPlusChem).

Current impact factor: 3.00

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 2.997
2013 Impact Factor 3.242
2012 Impact Factor

Impact factor over time

Impact factor

Additional details

5-year impact 3.00
Cited half-life 1.90
Immediacy index 0.76
Eigenfactor 0.00
Article influence 0.61
ISSN 2192-6506

Publisher details

Wiley-VCH Verlag

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Publications in this journal

  • ChemPlusChem 10/2015; DOI:10.1002/cplu.201500398
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    ABSTRACT: The nitrile complexes trans-[PtCl2(RCN)2] (R=Et (NC1), tBu (NC2), Ph (NC3), p-BrC6H4 (NC4)) and cis-[PtCl2(RCN)2] (R=Et (NC5), tBu (NC6), Ph (NC7)) react with 1 equiv of the hydroxyguanidine OC4H8NC(NOH)NH2 (HG) furnishing the mono-addition products trans- and cis-[PtCl2(RCN){NHC(R)ONC(NH2)NC4H8O}] (1–4 and 9–11; 7 examples; 54–74 % yield). Treatment of any of the nitrile complexes NC1–NC7 with HG in a 1:2 molar ratio generated the bis-addition products trans- and cis-[PtCl2{NHC(R)ONC(NH2)NC4H8O}2] (5–8 and 12–14; 7 examples; 69–89 % yield). The PtII-mediated coupling between nitrile ligands and HG proceeds substantially faster than the corresponding reactions involving amid- and ketoximes and gives redox stable products under normal conditions. Complexes 1, 6⋅4 CH2Cl2, 7⋅4 CH2Cl2, 8⋅2 CH2Cl2, and NC4 were studied by X-ray crystallography. Platinum(II) species 1–3, 10, 11, and especially 9, efficiently catalyze the hydrosilylation cross-linking of vinyl-terminated poly(dimethylsiloxane) and trimethylsilyl-terminated poly(dimethylsiloxane-co-ethylhydrosiloxane) giving high-quality thermally stable silicon resins with no structural defects. The usage of these platinum species as the catalysts does not require any inhibitors and, moreover, the complexes and their mixtures with vinyl- and trimethylsilyl-terminated polysiloxanes are shelf-stable in air.
    ChemPlusChem 09/2015; DOI:10.1002/cplu.201500327
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    ABSTRACT: Five 3,5-difluorophenyl-substituted ruthenium complexes [Ru(bpy)2(dfpbpy)(ClO4)2] (Ru-Fbpy-bpy; bpy=bipyridine, dfpbpy=5,5′-di(3,5-difluorophenyl)-2,2′-bipyridine), [Ru(dpp)2(dfpbpy)(ClO4)2] (Ru-Fbpy-dpp; dpp=4,7-diphenyl-1,10-phenanthroline), [Ru(dpp)2(dfpphen)(ClO4)2] (Ru-Fphen-dpp; dfpphen=5,5′-di(3,5-difluorophenyl)-1,10-phenanthroline), [Ru(dpp)2(4,7-dfpphen)(ClO4)2] (Ru-Fdpp-dpp; 4,7-dfpphen=4,7-di(3,5-difluorophenyl)-1,10-phenanthroline), and [Ru(4,7-dfpphen)3(AsF6)2] (Ru-Fdpp) were synthesized, and their photophysical, electrochemical, and electroluminescent properties were studied systematically. The introduction of the electron-withdrawing group 3,5-difluorophenyl leads to a redshift of the emission of the ruthenium complexes. In addition, the 3,5-difluorophenyl substituent extends the π conjugation of the ligand, and thus facilitates the metal-to-ligand charge-transfer process of the complexes. All the complexes display orange-red phosphorescent emissions centered at 638, 638, 624, 614, and 605 nm, respectively. Density functional theory calculations show that the lowest unoccupied molecular orbital of Ru-Fbpy-dpp, Ru-Fphen-dpp, and Ru-Fdpp-dpp are all distributed on the 3,5-difluorophenyl-substituted ligand. By using these complexes as emitters, highly luminescent single-layer devices are obtained. The optimized device based on Ru-Fdpp exhibits the highest luminous efficiency and power efficiency of 4.19 cd A−1 and 1.46 lm W−1, respectively.
    ChemPlusChem 09/2015; DOI:10.1002/cplu.201500346
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    ABSTRACT: Supported phosphine ligands are auxiliaries of topical academic and industrial interest in catalysis promoted by transition metals. However, both controlled implantation and controlled conformation of ligands should be achieved to produce immobilized catalysts that are able to structurally “copy” efficient homogeneous systems. We provide herein a general synthetic strategy for assembling a new class of branched tetra- and triphosphine ligands with a unique controlled rigid conformation, and thus providing a high local density of phosphorus atoms for extended coordination to the metal center. We prepared new functionalized cyclopentadienyl (Cp) salts to design polyphosphines that were “ready for immobilization”. These protected Cp fragments might also be of synthetic utility for generating other supported metallocenes. Tetra- and triphosphines were then formed and diversely functionalized for immobilization on virtually any kind of support. As evidenced by 31P NMR spectroscopy and the strong “through-space” spin–spin TSJ(P,P) coupling observed between P atoms, these modified polyphosphines induce, when immobilized on a support, a high local concentration of phosphorus donors that are spatially very close to each other (3–5 Å). These functionalized ligands have been incorporated into polystyrene to give either soluble or insoluble polymers and on inorganic supports such as silica. We report the catalytic performance at 0.05–0.5 mol % low palladium loading of the resulting immobilized polyphosphine ligands. This study provides proof-of-concept of supported catalytic materials built from modular polyphosphines with a novel approach to structurally controlled polydentate heterogeneous catalysts.
    ChemPlusChem 09/2015; 80(1). DOI:10.1002/cplu.201402195
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    ABSTRACT: Prompted by the favourable relaxometric, thermodynamic and kinetic properties of the bis-hydrated Gd(OBETA) complex, a novel derivative tailored with a n-hexadecyl chain was synthesized. The amphiphilic gadolinium complex was designed and prepared with the aim to obtain high relaxivity supramolecular aggregates by self-assembly in micelles and liposomes. Thus, lipidic nanoparticles were prepared and characterized by dynamic light scattering and 1H NMR relaxometry. Relaxivity values up to 48.3 mM¯¹s¯¹ (20 MHz and 298 K, liposomes) were registered in liposomal aggregates. The binding to Human Serum Albumin (HSA), evaluated both in terms of affinity and relaxometric properties of the supramolecular adduct, yielded exceptionally high relaxivity values (71.4 mM¯¹ s¯¹ at 30 MHz and 298 K).
    ChemPlusChem 09/2015; DOI:10.1002/cplu.201500366
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    ABSTRACT: De-hydroxylated, hydroxylated and hydrated anatase TiO2 samples have been exposed to acetylene at RT. The interaction leads to formation of polycyclic aromatic hydrocarbons (PAH) and is accompanied by the appearance of Ti3+ ions, as shown by Electron Paramagnetic Resonance spectra. Fully or partly de-hydroxylated samples show the higher reactivity whereas the hydrated samples are chemically inert. The experimental results point towards a crucial role of the more reactive (001) facets of anatase nanoparticles. Density functional theory calculations show that acetylene physisorbs on the anatase (101) surface without activation of the C-H bond. The reduced (101) surface (O vacancies) leads to acetylene activation but not to dissociative adsorption. On the contrary, the de-hydroxylated (001) anatase surface is very active and leads to the spontaneous splitting of the C-H bond with formation of a Ti-C2H and an OH groups. This is followed by subsequent additions of C2H2 molecules with formation of PAH. During the dissociation of C2H2 radical species do not form and electrons are not transferred to the surface because direct Ti-C covalent bond forms on the surface. However, the ring closure in the formation of the aromatic compounds leaves behind H atoms that donate their valence electrons to the oxide. This results in the appearance of EPR active Ti3+ centers.
    ChemPlusChem 09/2015; DOI:10.1002/cplu.201500383
  • ChemPlusChem 09/2015; DOI:10.1002/cplu.201500347
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    ABSTRACT: Luminescent thin films composed of thermo-stable lanthanide coordination polymers on glass electrodes were successfully prepared using novel combination between micelle reaction and electrochemical deposition techniques. The micelle encapsulated luminescent polymers were obtained by the polymerization of Eu(hfa)3 (hfa: hexafluoroacetylacetonate) with joint phosphine oxide ligands in micelles using redox-active ferrocenyl-derivative surfactant in water. Electrochemical deposition films were prepared on ITO-coated glass electrodes by potentiostatic polarization of micelle encapsulated EuIII coordination polymers. The luminescence properties of the electrochemical deposition films were estimated using the emission spectra, the emission lifetimes and the emission quantum yields. In this study, Preparation and characterization of electrochemical deposition film composed of micelle encapsulated EuIII coordination polymers on the glass electrodes were demonstrated.
    ChemPlusChem 09/2015; DOI:10.1002/cplu.201500382
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    ABSTRACT: In this work, two cationic lipids named 1a-1b bearing α-tocopherol moiety, biocompatible amino acid headgroups (histidine/lysine) via biodegradable disulfide and carbamate bond linkage were prepared and applied as non-viral gene delivery vectors. The physicochemical properties such as size, zeta potential and cellular uptake of the lipoplexes formed from lipids 1 as well as the transfection efficacy (TE) were investigated. The results showed that the chemical composition of the cationic head-group clearly affects the physicochemical parameters of the amino acid-based lipids and especially the TE. Besides their low cytotoxicity, these lipoplexes also showed comparable TE with commercially available lipofectamine 2000. Especially, lipids 1a give excellent TE, which was 4.3 times higher than bPEI 25k in the presence of 10% serum. These results demonstrate the promising use of amino acid-based lipids for safe and efficient gene delivery.
    ChemPlusChem 09/2015; DOI:10.1002/cplu.201500307
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    ABSTRACT: A new TTF donor covalently appended with a 1,5-diisopropylverdazyl radical via a cross-conjugated pyridyl linker 3 has been prepared and characterized. Reaction of 3 with TCNQ afforded the 2:1 charge transfer complex, (3)2TCNQ (4) where the IR and structural data are consistent with 0.25 e- charge transfer from the TTF donor to the TCNQ acceptor. The TTF and TCNQ molecules adopt a mixed-stack D-D-A arrangement that does not facilitate conduction.A solution EPR spectrum of 4 comprises a broad featureless singlet, consistent with the presence of a TCNQ radical anion. Theoretical studies were carried out to probe the exchange interactions within selected fragments of 4, with and without charge transfer; In the absence of charge transfer, DFT calculations reveal weak antiferromagnetic exchange between verdazyl radicals within the (3)2 monoradical unit. However, partial oxidation of the dimer (3)2 to the diradical cation leads to an S = ½ ground state in which the verdazyl radical spins are now switched to co-parallel as a consequence of antiferromagnetic exchange to the additional delocalised TTF-based spin containing unit. The magnetic properties of 4 are consistent with a net S = ½ spin state per formula unit with dominant antiferromagnetic interactions between spin-bearing building blocks.
    ChemPlusChem 08/2015; DOI:10.1002/cplu.201500309
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    ABSTRACT: Cyclopropanes with a quaternary center are efficiently synthesized starting from bromonitroalkenes and alkyl aldehydes under aminocatalysis, giving good yield, excellent enantioselectivities, and moderate to excellent diastereoselectivities. This work is a novel approach using bromonitroalkenes as starting material instead of the usual synthesis with bromine-activated methylene derivatives. The cyclization process is analyzed by DFT calculations, which suggests an SN2 mechanism. Theoretical data indicate that diastereoselectivity results from the energetic balance as a consequence of distortion the in trigonal bipyramid transition states and the relative stabilities of both starting rotamers and final products arising from distinct steric repulsions.
    ChemPlusChem 08/2015; DOI:10.1002/cplu.201500320
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    ABSTRACT: The production of a series of mesoporous, nitrogen-containing (N-containing) carbon materials directly from pure chitin by means of carbonization at different temperatures under template-free conditions is reported. Thermogravimetric analysis combined with infrared spectroscopy was applied to follow the temperature-dependent chemical events during the carbonization process, thereby shedding light on the automated pore formation mechanism. The physicochemical properties of the N-containing carbon materials have been extensively investigated, which provided guidance and rational understanding of the application of these materials. It was found that the N-containing carbon materials obtained at lower temperatures (400–600 °C) were enriched with amine, amide, and pyrrolic functionalities, which enables their very high efficiency as adsorbents to remove toxic heavy metals, such as CrVI, HgII, and PdII, from water. In contrast, N-containing carbon materials prepared at higher temperatures (800–1000 °C) were enriched with graphitic N, which exhibited excellent catalytic activity in the epoxidation of styrene.
    ChemPlusChem 08/2015; DOI:10.1002/cplu.201500293
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    ABSTRACT: Hierarchical mesoporous and macroporous nanohexagon NiO sheets were fabricated via a hydrothermal-guided synthesis route. This approach provided uniformly nanohexagonal ceramic sheets (with sizes of approximately 250–300 nm) having NiO active sites throughout the interior/exterior. The ceramic sheets with well-dispersed pore windows serve as significant platform-like adsorbents for the adsorption and recovery of a wide range of insecticides. A nanohexagon sheet adsorbent can accommodate insecticide molecules into the pore cavities or between the layer matrices which are directly accessible. The heterogeneous processing efficiency of insecticide adsorption was examined with a single ceramic sheet of the adsorbent at neutral pH and described in terms of the amount of uptake, removal of the multiple insecticide contaminants, and reusability. Experimental findings indicated that the platform-like adsorbent effectively removed >95 % of the insecticide toxins in a one-step batch adsorption process. Significantly, the complete recovery of multiple insecticide toxins from water sources could be achieved while maintaining the hierarchical hexagon sheet layered structures, thereby indicating its applicability for more than 20 reuse cycles. These nanohexagon sheet adsorbents can potentially satisfy the increasing need for the removal of hydrophilic and hydrophobic insecticides such as carbamates and organochlorines, respectively, from agriculture wastewate
    ChemPlusChem 08/2015; DOI:10.1002/cplu.201500244
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    ABSTRACT: A target induced recycling amplification method for the detection of cellular microRNA is reported based on strand displacement polymerization and nicking endonuclease mediated cleavage. Moreover, by utilizing silver nanoparticle-based solid-state Ag/AgCl reaction, ultrahigh sensitivity is achieved with powerful discriminating towards the identification of target microRNA. The limit of detection is as low as 70 aM. This method also allows the detection of cellular microRNA by lysing cells, thus making it a powerful tool for microRNA expression profiling and disease diagnosis.
    ChemPlusChem 08/2015; DOI:10.1002/cplu.201500249
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    ABSTRACT: The host–guest complexes formed from six differently substituted flavylium cations and cucurbit[7]uril (CB7) have been characterized by UV/Vis absorption, fluorescence emission and 1H NMR spectroscopy. It was observed that all flavylium cations form 1:1 inclusion complexes with association constants that depend on the nature and position of the substituents. The results indicate that CB7 displays higher affinity for more hydrophobic flavylium compounds and for those bearing amino substituents. 1H NMR spectroscopy was used to elucidate the structure of the complexes. While for 7-hydroxyflavylium and 4-methyl-7-hydroxyflavylium the phenyl group (ring B) is included within the host’s cavity leaving the benzopyrilium group (rings A and C) outside, in 4′,7-dihydroxyflavylium and 3′,4′,7-trihydroxyflavylium the macrocycle shuttles between rings A and B. For compounds with amino substituents it was found that CB7 is attracted towards these groups regardless of their position in ring A or B. In addition, it was observed that the dimethylamino group tends to be positioned near the carbonyl-decorated portal while the diethylamino motif prefers the hydrophobic cavity of CB7.
    ChemPlusChem 08/2015; DOI:10.1002/cplu.201500304
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    ABSTRACT: This Review is focused on radicals and dormant species in biology and polymer chemistry. The past two decades have witnessed significant advances in understanding the role, and methods of creation and control, of free radicals in biology and polymer chemistry. The progress reached in both areas has been enabled by the mechanistic understanding and fine-tuning of the reactivity, selectivity, and persistency of the radical species in multistep processes. The multidisciplinary scientific scenario described in this Review can be useful not only to create bridges and networks between biologists and chemists, but also to provide science with diversity, thereby highlighting aspects of biology and chemical synthesis that are only apparently far from each other. This should also result in widened scientific horizons, thus triggering a transfer from research to innovation.
    ChemPlusChem 08/2015; DOI:10.1002/cplu.201500271
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    ABSTRACT: The synthesis of tetrahedral Au(I) complexes [Au(GeCl3)L3] (L = PMe3 (1), PMe2Ph (2), PMePh2 (3), PPh3 (4)) was carried out by in situ treatment of the [Au(GeCl3)(tht)] complex with three equivalents of the corresponding tertiary phosphine. The crystal structures of complexes 1 and 3 have been determined through X-ray diffraction studies showing [GeCl3]- fragments bonded to the corresponding [Au(PR3)3]+ units through covalent bonds, leading to a tetrahedral coordination environment for gold. Complexes 3 and 4 show dual phosphorescence in solid state at 77 K and, in the case of complex 4, an interesting room temperature mechanochromism effect is observed. Correlated MP2, SCS-MP2, SCS-CC2 and ONIOM MP2/UFF calculations suggest the existence of two largely distorted and thermally connected triplet excited states (T1 and T2) for a model system of complex 4. The AuP3+ moiety can be distorted in two different planes leading to the two triplet excited states T1 and T2, leaving the GeCl3- unit almost unaltered. The emissions of these phosphorescent Au(I)-Ge(II) complexes is mainly ascribed to a metal (gold) centered (3MC) transition with some contribution from the [GeCl3]- fragments.
    ChemPlusChem 08/2015; DOI:10.1002/cplu.201500337
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    ABSTRACT: We have constructed three-dimensionally controllable multi-channel silica nanotubes (MC-SNTs). Quaternary ammonium type (CnH2n+1(CH3)3N+) surfactants were used as structure-directing agent (SDA) in basic medium of ammonia. Low concentration of block copolymer PEO20PPO70PEO20 (P123) was employed as additive. The length, diameter and pore size of MC-SNTs can be finely controlled in the range of 50 nm to 5 μm, 50 to 350 nm and 2 to 3 nm by changing the molar ratio of P123 and SDA, the concentration of ammonia and the length of carbon chain of SDAs, respectively. TEM observations confirmed a role of P123 as well as ammonia in the self-assembled micelles of SDA. Compared with the one-pot method reported before, the aspect ratios (length/diameter, ARs) of obtained MC-SNTs were tunable in a wide range of about 1 to 100. The tunable MC-SNTs were used as dual-drug delivery carriers for anti-cancer doxorubicin (Dox) and anti-inflammatory ibuprofen (Ibu). Results of release behavior and toxicity to cancer cells of Dox-Ibu loaded MC-SNTs with different ARs revealed that Dox and Ibu were successfully co-delivered and did not interfere with each other. The produced MC-SNTs of larger AR of showed advantages in the accumulated amount of dual drugs, the duration time of release and the inhibition of the growth of HeLa cells.
    ChemPlusChem 08/2015; DOI:10.1002/cplu.201500231