Spotlights on Our Sister Journals: Chemistryopen 5
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On these pages, we feature aselection computer,click on any of the items to of the excellent work that has recently read the full article. Otherwise please been published in our sister journals. see the DOIs for easy online access If you are reading these pages on a through Wiley Online Library. Iodine Adducts A. Reinholdt, T. Vosch, J. Bendix* Modification of s-Donor Properties of TerminalCarbideLigands Investigated Through Carbide–Iodine AdductFormation To give and take:terminal ruthenium carbidecomplexes [(Cy P) X Ru C] (1;X= halide or pseudohalide), form charge-transfer 3 2 2 adducts with I2 exhibitinglarge variation in bond lengths and stretching frequencies. This showsthat the auxiliary ligand sphere on rutheniumenables control over the s-donor properties of car- bide ligands, elucidating their isolobal relationship with carbon monoxide. Angew.Chem. Int. Ed. DOI: 10.1002/anie.201606551 Density Functional Theory J. I. Schweizer, L. Meyer,A.Nadj, M. Diefenbach, M. C. Holthausen* Unraveling the Amine-Induced Disproportionation Reaction of Perchlorinated Silanes—A DFT Study Aneo twist:ADFT study on the amine-induceddisproportionation reactionofSi2Cl6 to neo-Si5Cl12 discloses astepwise rather than a concerted silylene insertion mechanism, which was generally ac- cepted for over half acentury. The resulting pictureappears gener- alizabletothe relatedchloride-induced chemistry recently explored (see graphic). Chem. Eur.J. DOI: 10.1002/chem.201602724 Aza-Diels–Alder Reactions Y. Kumatabara, S. Kaneko, S. Nakata,S.Shirakawa,* K. Maruoka Hydrogen-BondingCatalysis of TetraalkylammoniumSalts in an Aza-Diels–Alder Reaction Under observation:Apiperidine-derived tetraalkylammoniumsalt with anon-coordinating counteranion worked as an effective hydro- gen-bonding catalyst in an aza-Diels–Alder reactionofimines anda Danishefskydiene. The hydrogen-bonding interaction between the ammonium salt and an imine was observed as part of a 1HNMR ti- Chem. Asian J. tration study. DOI: 10.1002/asia.201600781 ChemistryOpen 2016, 5,397 –400 397 2016 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim Peptidomimetics T. W. Craven,* R. Bonneau, K. Kirshenbaum* PPII Helical Peptidomimetics Templated by Cation–p Interactions PPII helicesonlockdown:Anetwork of cation–p interactions was used to template peptideand peptoid residues into left-handed poly-proline type II (PPII) helices, covalently locking the secondary structure with an engineered disulfide bridge. These chemically di- verse PPII helicalstructures provideanew route toward peptidomi- metic protein–protein interaction inhibitors. ChemBioChem DOI: 10.1002/cbic.201600248 Photoisomerisation J. Casellas, M. J. Bearpark, M. Reguero* Excited-State Decayinthe Photoisomerisation of Azobenzene:A New Balance between Mechanisms Rotation versus inversion:The mechanism of photoisomerisation of azobenzene depends on the initial excitation and on the degree of constraint of the rotation of the system. Multiconfigurational ab i- nitio calculations provide an accuratedescription of the potential energy surfaces of the excited states of this system when the dy- ChemPhysChem namic electron correlation is included, and allow the experimental DOI: 10.1002/cphc.201600502 observations to be explained. Antibiotics M. E. Forman, M. C. Jennings, W. M. Wuest,* K. P. C. Minbiole* Building aBetter Quaternary Ammonium Compound (QAC): Branched Tetracationic Antiseptic Amphiphiles “SuperT” QACs:Disinfectantsmust have two keyfeatures:potent activity against avariety of microorganisms, and minimal toxicityto eukaryotic cells. How do we design nonspecific antibacterial agents that kill bacteria, yet are safe enough to use in households, hospi- tals, and industry?This work examines the role of charge and spac- ing in developing novel antiseptics with desirable efficacy to toxicity ChemMedChem profiles. DOI: 10.1002/cmdc.201600176 Carbon Dioxide Chemistry M. Pan, N. Cao, W. Lin, X. Luo, K. Chen, S. Che, H. Li, C. Wang* Reversible CO2 Capture by Conjugated Ionic Liquids through DynamicCovalent Carbon–Oxygen Bonds Dual-tuning method:Through the introductionofalarge p-conju- gated structure into the anion, adual-tuning approach to improve CO2 capture by anion-functionalizedionic liquids (ILs) results in high 1 À capacities of up to 0.96 molCO2 molIL and excellent reversibility. Quantum chemical calculations, spectroscopicinvestigations,and ChemSusChem thermogravimetric analysisindicate that the increased capacity is a DOI: 10.1002/cssc.201600402 result of stronger dynamic covalent bonds. ChemistryOpen 2016, 5,397 –400 398 2016 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim Photocatalysis Y. Kuwahara,Y.Sumida, K. Fujiwara,H.Yamashita* Facile Synthesis of Yolk–Shell Nanostructured Photocatalyst with Improved Adsorption Properties and Molecular-Sieving Properties Oil in water for yolk in shell:Anovel and facile methodtofabri- cate yolk–shell nanostructured photocatalysts consisting of TiO2 nanoparticles as the core and spherical hollow silica as the shell was developed. The yolk–shell nanostructures act as an efficient photo- ChemCatChem catalystwith both improved adsorption properties andmolecular- DOI: 10.1002/cctc.201600505 sieving properties, which far outperformed those of naked TiO2. Metal–Organic Frameworks O. Alduhaish, H. Wang,* B. Li, H. D. Arman, V. Nesterov,K.Alfooty, B. Chen* AThreefold Interpenetrated Pillared-Layer Metal–Organic Framework for Selective Separation of C2H2/CH4 and CO2/CH4 Trapped wind:Anew threefold interpenetrated pillared-layer mi- croporous metal–organic framework, [Zn2(cca)2(4-bpdb)]n·(DMF)2n (UTSA-85) (H2cca=4-carboxycinnamic acid, 4-bpdb =1,4-bis(4-pyrid- yl)-2,3-diaza-1,3-butadiene, and DMF=N,N-dimethylformamide), is described.The desolvatedframework, UTSA-85a, exhibits high se- lectivity for C2H2/CH4 separation as aresultofthe microporous ChemPlusChem structure and functional azine-groups decorating the pore channels DOI: 10.1002/cplu.201600088 (see figure). Nanocatalysts J. Gonzµlez-Cobos, S. Baranton, C. Coutanceau* Development of Bismuth-Modified PtPd Nanocatalysts for the Electrochemical Reforming of Polyols intoHydrogenand Value-Added Chemicals Bi adding value!Bismuth-modified PtPd anodes allow the produc- tion of hydrogen in an alkaline electrolysiscell at potentials as low as 0.3 V. Product identification by using FTIR spectroscopy indicates that glyceraldehyde and dihydroxyacetone are selectively formed at anode potentials lower than 0.55 V, whereas value-added C3 carbox- ChemElectroChem ylates are produced at anode potentials higherthan 0.6 V. In addi- DOI: 10.1002/celc.201600147 tion, modification with bismuth avoids C Cbond breakage. À Olefin Polymerization A. Fridrichovµ,V.Varga, J. Pinkas, M. Lamacˇ,A.Ru˚zˇicˇka, M. Horµcˇek* Yttrocene Chloride and Methyl Complexes with Variously Substituted Cyclopentadienyl Ligands:Synthesis, Characterization, and Reactivity toward Ethylene 5 An ionic complex consisting of the tetranuclear anion {[( -C5Me4- – + SiMe3)YCl2]4(m4-Cl)} and the thf-coordinated lithium cation [Li(thf)4] was used for the synthesis of mixed yttrocene chloride and methyl complexes containing two cyclopentadienyl ligands with different steric demands. Yttrocene methylcomplexeswere testedascata- Eur.J.Inorg. Chem. lysts in ethylene polymerization. DOI: 10.1002/ejic.201600390 ChemistryOpen 2016, 5,397 –400 399 2016 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim SulfonamideLigation R. Zelli, S. Tommasone, P. Dumy,A.Marra,* A. Dondoni* AClick Ligation Based on SuFEx for the Metal-FreeSynthesis of Sugar and Iminosugar Clusters The metal-free coupling betweenatetra-aminated calixarene and a bench-stable C-glycosylsulfonyl fluoride gave the corresponding sugar cluster in good yield. The reversed sulfonamide bioisostere of Eur.J.Org. Chem. the latter wasprepared using atetrasulfonylfluoridecalixareneand DOI: 10.1002/ejoc.201600732 aC-glycosylalkylamine. AsymmetricCatalysis K. Huang,Q.Ma, X. Shen, L. Gong,* E. Meggers* Metal-Templated Asymmetric Catalysis: (Z)-1-Bromo-1-Nitrostyrenes as Versatile Substratesfor Friedel–Crafts Alkylation of Indoles An enantioselective Friedel–Craftsalkylation of indoles with a- bromo nitroalkenes has been developed by using aspecial metal- templated H-bonding complex.The mechanism involvingmultiple hydrogen-bonding interactions is well established by the co-crystal structure of asimplified iridium catalyst with astructuralanalog of Asian J. Org. Chem. the nitro substrate. DOI: 10.1002/ajoc.201600288 Molecular Assembly W. Liyanage, N. M. B. Cogan, B. L. Nilsson* Amyloid-InspiredOpticalWaveguides from Multicomponent Crystalline Microtubes Follow the light:Crystallinemicrotubes formed by selectivecoas- sembly of amyloid-specific fluorophores and Fmoc-4-NO2-Phe micro- tubes exhibit optical waveguide properties. ChemNanoMat DOI: 10.1002/cnma.201600123 Photovoltaics T. Kueckmann, Q. Zhang Electron Transport in Solar Cells In “Behindthe Science”, ChemViews Magazine gives readers apeek behind the scenesofaresearch article. This time, Theresa Kueck- mann, Chemistry—An Asian Journal,talks to Qichun Zhang, Nanyang Technological University,Singapore, about his recent article on elec- tron-transport layer materials for perovskite solar cells. ChemViews magazine DOI: 10.1002/chemv.201600064 ChemistryOpen 2016, 5,397 –400 400 2016 Wiley-VCH Verlag GmbH &Co. KGaA, Weinheim.