Chem. Commun.

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Triazolo-[small beta]-aza-[varepsilon]-amino acid and its aromatic analogue as novel scaffolds for [small beta]-turn peptidomimetics

23 December, 2014 - 05:17

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC08414D, CommunicationSubhendu Sekhar Bag, Subhashis Jana, Afsana Yashmeen, Suranjan De
Triazolo-[small beta]-aza-[varepsilon]-amino acid and its aromatic analogue (AlTAA/ArTAA) in the peptide backbone mark a novel class of conformationally constrained molecular scaffolds to induce [small beta]-turn conformations. This was demonstrated in a Leu-enkephalin analogue and in other designed peptides.
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Towards enantioselective adsorption in surface-confined nanoporous systems

23 December, 2014 - 05:17

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC08826C, CommunicationElke Ghijsens, Hai Cao, Aya Noguchi, Oleksandr Ivasenko, Yuan Fang, Kazukuni Tahara, Yoshito Tobe, Steven De Feyter
The adsorption of chiral molecules in surface-confined chiral porous networks shows pronounced selectivity, as a result of complementary host-guest interactions.
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Organocatalytic multicomponent synthesis of enantioenriched polycyclic 1,2,3,4-tetrahydropyridines: key substrate selection enabling regio- and stereoselectivities

23 December, 2014 - 05:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC08469A, CommunicationYohan Dudognon, Haiying Du, Jean Rodriguez, Xavier Bugaut, Thierry Constantieux
A completely regioselective and highly enantioselective organocatalytic multicomponent synthesis of 1,2,3,4-tetrahydropyridines is described.
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Hierarchical mesoporous yolk-shell structured carbonaceous nanospheres for high performance electrochemical capacitive energy storage

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09366F, CommunicationTianyu Yang, Ruifeng Zhou, Dawei Wang, San Ping Jiang, Yusuke Yamauchi, Shizhang Qiao, Michael Monteiro, Jian Liu
Hierarchical mesoporous yolk-shell structured carbon nanospheres (YSCNs) with ordered mesoporous carbon core and microporous carbon shell show excellent electrochemical performance with a maximal specific capacitance of 159 F[round bullet, filled]g-1.
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Self-Propelled Chemotactic Ionic Liquid Droplets

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09214G, CommunicationWayne Francis, Cormac Fay, Larisa Florea, Dermot Diamond
Herein we report the chemotactic behaviour of self-propelled droplets composed solely of the ionic liquid trihexyl(tetradecyl)phosphonium chloride ([P6,6,6,14][Cl]). These droplets spontaneously move along an aqueous-air boundary in the direction of...
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Chemical design enables control of conformational polymorphism in functional 2,3-thieno(bis)imide-ended materials

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09177A, CommunicationLucia Maini, Federico Gallino, Massimo Zambianchi, margherita durso, massimo gazzano, Katia Rubini, Denis Gentili, ilse manet, Michele Muccini, Stefano Toffanin, Massimiliano Cavallini, Manuela Melucci
Polymorphism represents an intrinsic 'atom economic' opportunity in organic electronics since it would allow to achieve different functionalities by exploiting a single molecule. Here, we report a simple chemical design...
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Gold Nanoparticle-loaded Filter paper: A Recyclable "Dip-Catalyst" for Real-Time Reaction Monitoring by Surface Enhanced Raman Scattering

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09466B, CommunicationGuangchao Zheng, Lakshminarayana Polavarapu, Luis M. Liz-Marzan, Isobel Pastoriza-Santos, Jorge Perez-Juste
We report a robust and recyclable "dip-catalyst" based on a gold nanoparticle (Au NP)-loaded filter paper composite, prepared by a simple dip-coating process using concentrated Au NP suspensions in toluene....
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In situ quantitation of intracellular microRNA in whole cell cycle with a functionalized carbon nanosphere probe

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09097G, CommunicationHuangxian Ju, Xianjiu Liao
A method was designed for in situ quantitation and monitoring the change of intracellular microRNA in whole cell cycle with a functionalized carbon nanosphere probe.
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Cu-Catalyzed Cross-Coupling Reactions of Epoxides with Organoboron Compounds

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09321F, CommunicationXiao-Yu Lu, Chu-Ting Yang, Jing-Hui Liu, Zhen-Qi Zhang, Xi Lu, Xin Lou, Bin Xiao, Yao Fu
A copper-catalyzed cross-coupling reaction of epoxides with arylboronates is described. The reaction is not limited to aromatic epoxides, because aliphatic epoxides are also suitable substrates. In addition, N-sulfonyl aziridines can...
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cis-Semihydrogenation of Alkynes With Amine Borane Complexes Catalyzed by Gold Nanoparticles Under Mild Conditions

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08163C, CommunicationManolis Stratakis, Eleni Vasilikogiannaki, Ioannis Titilas, Georgios Vassilikogiannakis
Supported gold nanoparticles catalyze the semihydrogenation of alkynes to alkenes with ammonia borane or amine borane complexes in excellent yields and under mild conditions. Internal alkynes provide cis-alkenes, making this...
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Hierarchical layered double hydroxide nanocomposites: structure, synthesis and applications

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07715F, Feature ArticleZi Gu, John Atherton, Zhi Ping (Gordon) Xu
Layered double hydroxide (LDH)-based nanocomposites, constructed by interacting LDH nanoparticles with other nanomaterials (e.g. silica nanoparticles and magnetic nanoparticles) or polymeric molecules (e.g. proteins), are an emerging yet active area...
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Engineering Supramolecular Organic Frameworks (SOFs) of C-alkylPyrogallol[4]arene with Bipyridine-based Spacers

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08388A, CommunicationRahul S Patil, Harshita Kumari, Charles L Barnes, Jerry L Atwood
Supramolecular organic frameworks (SOFs) based on pyrogallol[4]arene and 4,4'-bipyridine-type spacer molecules have been investigated. The hydrogen bonding pattern and molecular arrangement in the crystal structures are engineered through the cocrystallization...
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Electro-Optical Detection of Single [small lambda]-DNA

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07591A, CommunicationShuo Liu, Thomas A Wall, Damla Ozcelik, Joshua Parks, A R Hawkins, Holger Schmidt
Single [small lambda]-DNA molecules are detected on a nanopore-gated optofluidic chip electrically and optically. Statistical variations in the single particle trajectories are used to correctly predict the intensity distribution of the...
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Unprecedented spin localisation in a metal-metal bonded dirhenium complex

23 December, 2014 - 05:17

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC09397F, CommunicationYong Yan, Joel T. Mague, James P. Donahue, Stephen Sproules
[N(n-Bu)4]3[Re2(mnt)5] is the first class I, valence localized dirhenium(III,IV) compound, with a metal-metal bond.
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Thiophosphoramides as cooperative catalysts for copper-catalyzed arylation of carboxylates with diaryliodonium salts

23 December, 2014 - 05:17

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC08604J, CommunicationBijay Bhattarai, Jia-Hui Tay, Pavel Nagorny
A thiophosphoramide-based co-catalyst was found to significantly accelerate copper(II) trifluoromethanesulfonate-catalyzed arylation of potassium carboxylates with diaryliodonium salts.
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Di-macrocyclic terephthalamide ligands as chelators for the PET radionuclide zirconium-89

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09256B, CommunicationDarpan N Pandya, Sylvie Pailloux, David Sherrod Tatum, Darren Magda, Thaddeus J Wadas
The development of bifunctional chelators (BFCs) which can stably chelate zirconium-89 (89Zr) while being conjugated to targeting molecules is an area of active research. Herein we report the first octadentate...
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The first 4d/4f single molecule magnet containing a {RuIII2DyIII2} core

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08811E, CommunicationKeith S. Murray, Daniel Wielechowski, Stuart K Langley, Veacheslav Vieru, Nicholas F Chilton, Boujemaa Moubaraki, Liviu Chibotaru
We report the synthesis, structure and magnetic properties of the first 4d-4f single molecule magnet. The complex [RuIII2DyIII2(OMe)2(O2CPh)4(mdea)2(NO3)2] displays a butterfly type core, with an anisotropy barrier of 10.7 cm-1....
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A host-guest inclusion compound for reversible switching of quadratic nonlinear optical properties

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08711A, Communicationchengmin ji, zhihua sun, Shuquan Zhang, Sangen Zhao, tianliang chen, Yuanyuan Tang, Junhua Luo
A host-guest inclusion compound [(DPA)(18-crown-6)]ClO4 (DPA = Dipropylamine) undergoes a reversible phase transition at 214 K, which enables it to switch the NLO response between SHG-ON and SHG-OFF states associated...
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Facile and green assembly of nanocomposite membranes for fuel cells

23 December, 2014 - 05:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC08347D, CommunicationEliana Quartarone, Davide Carlo Villa, Simone Angioni, Piercarlo Mustarelli
Spray deposition is a facile and green method to obtain nanocomposite membranes for HT-PEMFCs characterized by high homogeneity and excellent proton conductivity.
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Formation of a Zwitterionic Boronium Species from the Reaction of a Stable Carbenoid with Borane: CO2 Reduction

21 December, 2014 - 04:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09239B, CommunicationNicolas Mezailles, Cheuk-Wai So, Nathalie Saffon, Samuel Y.-F. Ho
The treatment of Li2C(PPh2NMes)2 (1, Mes = 2,4,6-Me3C6H2) with hexachloroethane yielded the corresponding carbenoid 2 in good yields. The reactivity of 2 was studied with BH3.SMe2 to give an zwitterionic...
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