Chem. Commun.

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The promotion effect of isolated potassium atoms with hybridized orbitals in catalytic oxidation

2 June, 2015 - 21:54

Chem. Commun., 2015, 51,9888-9891
DOI: 10.1039/C5CC02476E, CommunicationFei Xu, Zhiwei Huang, Pingping Hu, Yaxin Chen, Lei Zheng, Jiayi Gao, Xingfu Tang
The promotion effect of isolated potassium atoms in catalytic oxidation was investigated by studying their geometric and electronic structures.
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Platinum decorated functionalized defective acetylene black; a promising cathode material for the oxygen reduction reaction

2 June, 2015 - 21:54

Chem. Commun., 2015, 51,9841-9844
DOI: 10.1039/C5CC02235E, CommunicationRajashekar Badam, Raman Vedarajan, Noriyoshi Matsumi
Enormously enhanced oxygen reduction reaction of Pt-np/functionalized acetylene black.
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Fabrication of CeO2 nanotube supported Pt catalyst encapsulated with silica for high and stable performance

2 June, 2015 - 21:54

Chem. Commun., 2015, 51,9785-9788
DOI: 10.1039/C5CC02647D, CommunicationChao Wan, Dang-guo Cheng, Fengqiu Chen, Xiaoli Zhan
Pt/CeO2 nanotubes encapsulated with silica exhibit high activity and stability for the water-gas-shift reaction.
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Gating the photochromism of an azobenzene by strong host-guest interactions in a divalent pseudo[2]rotaxane

2 June, 2015 - 21:54

Chem. Commun., 2015, 51,9777-9780
DOI: 10.1039/C5CC02811F, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Mirko Lohse, Karol Nowosinski, Nora L. Traulsen, Andreas J. Achazi, Larissa K. S. von Krbek, Beate Paulus, Christoph A. Schalley, Stefan Hecht
Photoisomerisation of an E-configured azobenzene guest is controlled by a complementary host leading to formation of a divalent pseudo[2]rotaxane complex.
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On the handedness of helical aggregates of C3 tricarboxamides: a multichiroptical characterization

2 June, 2015 - 21:54

Chem. Commun., 2015, 51,9781-9784
DOI: 10.1039/C5CC03054D, CommunicationBelen Nieto-Ortega, Fatima Garcia, Giovanna Longhi, Ettore Castiglioni, Joaquin Calbo, Sergio Abbate, Juan T. Lopez Navarrete, Francisco J. Ramirez, Enrique Orti, Luis Sanchez, Juan Casado
A multichiroptical characterization of the supramolecular polymers formed by C3 tricarboxamides is performed using ECD, VCD, CPL and theoretical calculations.
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A stable fluorinated and alkylated lithium malonatoborate salt for lithium ion battery application

2 June, 2015 - 21:54

Chem. Commun., 2015, 51,9817-9820
DOI: 10.1039/C5CC01428J, CommunicationShun Wan, Xueguang Jiang, Bingkun Guo, Sheng Dai, John B. Goodenough, Xiao-Guang Sun
A new fluorinated and alkylated lithium malonatoborate salt, lithium bis(2-methyl-2-fluoromalonato)borate (LiBMFMB), has been synthesized for lithium ion battery application.
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Base or nucleophile? DFT finally elucidates the origin of the selectivity between the competitive reactions triggered by MeLi or LDA on propanal

2 June, 2015 - 21:54

Chem. Commun., 2015, 51,9801-9804
DOI: 10.1039/C5CC01549A, CommunicationJ. Marchois, C. Fressigne, B. Lecachey, J. Maddaluno
Why is LDA such a good base while MeLi is mainly a nucleophile? This communication presents a DFT theoretical study comparing side by side the mechanistic pathways followed during the deprotonation and nucleophilic addition of these two reagents, solvated by THF, onto propanal.
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Directed evolution 2.0: improving and deciphering enzyme properties

2 June, 2015 - 21:54

Chem. Commun., 2015, 51,9760-9772
DOI: 10.1039/C5CC01594D, Feature ArticleFeng Cheng, Leilei Zhu, Ulrich Schwaneberg
A KnowVolution: knowledge gaining directed evolution including four phases is proposed in this feature article, which generates improved enzyme variants and molecular understanding.
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Correction: Progress and developments in the turbo Grignard reagent i-PrMgCl[middle dot]LiCl: a ten-year journey

31 May, 2015 - 21:17
Chem. Commun., 2015, 51,9744-9744
DOI: 10.1039/C5CC90243F, CorrectionRobert Li-Yuan Bao, Rong Zhao, Lei Shi
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Lipase-modified pH-responsive microgel-based optical device for triglyceride sensing

31 May, 2015 - 21:17

Chem. Commun., 2015, 51,9726-9728
DOI: 10.1039/C5CC02853A, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Qiang Matthew Zhang, Darren Berg, Samuel M. Mugo, Michael J. Serpe
Lipase-modified poly (N-isopropylacrylamide)-based microgels were synthesized, and used to fabricate optical devices (etalons). Triglyceride reacted with lipase to generate fatty acid, which yielded an etalon response.
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Dispersion, solvent and metal effects in the binding of gold cations to alkynyl ligands: implications for Au(I) catalysis

31 May, 2015 - 21:17

Chem. Commun., 2015, 51,9702-9705
DOI: 10.1039/C5CC02629F, CommunicationLuisa Ciano, Natalie Fey, Connor J. V. Halliday, Jason M. Lynam, Lucy M. Milner, Nimesh Mistry, Natalie E. Pridmore, Nell S. Townsend, Adrian C. Whitwood
The ability of gold(I) cations to coordinate to alkynyl ligands allows for the formation of di- and trinuclear scaffolds. This reinforces the notion that multiple gold coordination may play a key role in catalysis.
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Synthesis of amphiphilic polysuccinimide star copolymers for responsive delivery in plants

31 May, 2015 - 21:17

Chem. Commun., 2015, 51,9694-9697
DOI: 10.1039/C5CC02726H, CommunicationMingsheng Chen, Shaun P. Jensen, Megan R. Hill, Gloria Moore, Zhenli He, Brent S. Sumerlin
While polymeric nano-carriers are widely used in medicine for controlled release and site-specific delivery, few reports have applied such delivery methods within agriculture. We report the synthesis of polymeric nano-carriers designed for delivery to the phloem of plants and describe novel methods for evaluating toxicity of polymers in plant cells.
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Synthesis and characterization of cell-microenvironment-sensitive leakage-free gold-shell nanoparticles with the template of interlayer-crosslinked micelles

31 May, 2015 - 21:17

Chem. Commun., 2015, 51,9682-9685
DOI: 10.1039/C5CC02556G, CommunicationJian Dai, Qianqian Li, Wenya Liu, Shudong Lin, Yaoyao Hao, Chao Zhang, Xintao Shuai
Novel pH-GSNPs exhibit drug leakage-free behavior in a physiological environment, while achieving rapid drug release and remarkable nanogold interlayer aggregation in the intracellular microenvironment.
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Photo-triggered fluorescent labelling of recombinant proteins in live cells

31 May, 2015 - 21:17

Chem. Commun., 2015, 51,9670-9673
DOI: 10.1039/C5CC01067E, CommunicationDeokho Jung, Kohei Sato, Kyoungmi Min, Akira Shigenaga, Juyeon Jung, Akira Otaka, Youngeun Kwon
A method to photo-chemically trigger fluorescent labelling of proteins in live cells is developed for background-free fluorescent labelling of target proteins with the necessary spatiotemporal control.
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Synthesis and properties of 2[prime or minute]-O,4[prime or minute]-C-spirocyclopropylene bridged nucleic acid (scpBNA), an analogue of 2[prime or minute],4[prime or minute]-BNA/LNA bearing a cyclopropane ring

31 May, 2015 - 21:17

Chem. Commun., 2015, 51,9737-9740
DOI: 10.1039/C5CC02024G, CommunicationTakao Yamaguchi, Masahiko Horiba, Satoshi Obika
The scpBNA-modified oligonucleotides exhibit excellent duplex-forming ability toward the complementary ssRNA, and dramatically increased resistance to nuclease activity compared to their 2[prime or minute],4[prime or minute]-BNA/LNA-modified counterparts.
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Synthesis and immunological study of [small alpha]-2,9-oligosialic acid conjugates as anti-group C meningitis vaccines

31 May, 2015 - 21:17

Chem. Commun., 2015, 51,9647-9650
DOI: 10.1039/C5CC01794G, CommunicationGuochao Liao, Zhifang Zhou, Zhongwu Guo
Protein conjugates of synthetic [small alpha]-2,9-oligosialic acids elicited robust T cell-dependent immunities that could target group C Neisseria meningitidis.
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Metal-free C(3)-H arylation of coumarins promoted by catalytic amounts of 5,10,15,20-tetrakis(4-diethylaminophenyl)porphyrin

31 May, 2015 - 21:17

Chem. Commun., 2015, 51,9718-9721
DOI: 10.1039/C5CC02349A, CommunicationMasahiro Kojima, Kounosuke Oisaki, Motomu Kanai
Metal-free, Meerwein-type C(3)-H arylation of coumarins was achieved in the presence of catalytic amounts of 5,10,15,20-tetrakis(4-diethylaminophenyl)porphyrin.
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Aminomaleimide fluorophores: a simple functional group with bright, solvent dependent emission

31 May, 2015 - 21:17

Chem. Commun., 2015, 51,9733-9736
DOI: 10.1039/C5CC02908B, CommunicationAnne B. Mabire, Mathew P. Robin, Wen-Dong Quan, Helen Willcock, Vasilios G. Stavros, Rachel K. O'Reilly
Amino-substituted maleimides form a new class of highly emissive compounds, with large Stokes shifts (>100 nm) and high quantum yields (up to [similar]60%).
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Chemical decoration of CH3NH3PbI3 perovskites with graphene oxides for photodetector applications

31 May, 2015 - 21:17

Chem. Commun., 2015, 51,9659-9661
DOI: 10.1039/C5CC02282G, CommunicationMinhong He, Yani Chen, Hui Liu, Jialin Wang, Xiaosheng Fang, Ziqi Liang
A facile solution method is developed for in situ synthesis of free-standing CH3NH3PbI3/graphene hybrids to improve significantly the photodetector performance.
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A new lithium-rich anti-spinel in Li-O-Br system

31 May, 2015 - 21:17

Chem. Commun., 2015, 51,9666-9669
DOI: 10.1039/C5CC01109D, CommunicationJ. Zhang, J. Zhu, L. Wang, Y. Zhao
First-ever anti-spinel obtained by the dehydration reaction Li5Br(OH)4 = Li3OBr + 2LiOH + H2O under moderate pressure and temperature conditions.
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