Chem. Commun.

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Protein-based supramolecular polymers: progress and prospect

5 August, 2014 - 17:54

Chem. Commun., 2014, 50,9997-10007
DOI: 10.1039/C4CC03143A, Feature ArticleQuan Luo, Zeyuan Dong, Chunxi Hou, Junqiu Liu
This feature article highlights recent advances and future trends in protein-based supramolecular polymers that are formed by various non-covalent interactions.
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A novel mechanism for poisoning of metal oxide SCR catalysts: base-acid explanation correlated with redox properties

5 August, 2014 - 17:54

Chem. Commun., 2014, 50,10031-10034
DOI: 10.1039/C4CC02991G, CommunicationHuazhen Chang, Junhua Li, Wenkang Su, Yuankai Shao, Jiming Hao
A novel correlation between base-acid properties and redox ability contributes to acid gas poisoning and N2O formation on SCR catalysts.
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Turning unreactive copper acetylides into remarkably powerful and mild alkyne transfer reagents by oxidative umpolung

5 August, 2014 - 17:54

Chem. Commun., 2014, 50,10008-10018
DOI: 10.1039/C4CC03198A, Feature ArticleG. Evano, K. Jouvin, C. Theunissen, C. Guissart, A. Laouiti, C. Tresse, J. Heimburger, Y. Bouhoute, R. Veillard, M. Lecomte, A. Nitelet, S. Schweizer, N. Blanchard, C. Alayrac, A.-C. Gaumont
Upon oxidation, copper acetylides formally behave as highly electrophilic species that could be trapped by a wide range of nucleophiles.
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Real-time imaging and local elemental analysis of nanostructures in liquids

5 August, 2014 - 17:54

Chem. Commun., 2014, 50,10019-10022
DOI: 10.1039/C4CC02743D, CommunicationEdward A. Lewis, Sarah J. Haigh, Thomas J. A. Slater, Zheyang He, Matthew A. Kulzick, M. Grace Burke, Nestor J. Zaluzec
A new design of in situ liquid cells is demonstrated, providing the first nanometer resolution elemental mapping of nanostructures in solution.
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One-pot enantioselective construction of indoloquinolizidine derivatives bearing five contiguous stereocenters using aliphatic aldehydes, nitroethylenes, and tryptamine

5 August, 2014 - 17:54

Chem. Commun., 2014, 50,10027-10030
DOI: 10.1039/C4CC01929F, CommunicationYu Tan, Han-Lin Luan, Hua Lin, Xing-Wen Sun, Xiao-Di Yang, Han-Qing Dong, Guo-Qiang Lin
An organocatalytic cascade reaction was established for the construction of indoloquinolizidine derivatives bearing five contiguous stereocenters from readily available starting materials.
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Anion-induced dimerization of 5-fold symmetric cyanostars in 3D crystalline solids and 2D self-assembled crystals

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9827-9830
DOI: 10.1039/C4CC03725A, CommunicationBrandon E. Hirsch, Semin Lee, Bo Qiao, Chun-Hsing Chen, Kevin P. McDonald, Steven L. Tait, Amar H. Flood
Anions stabilize stacking of C5-symmetric macrocycles, called cyanostars, into dimers in solution, in solid-state crystals, and in bilayers at the solution-graphite interface.
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Au137(SR)56 nanomolecules: composition, optical spectroscopy, electrochemistry and electrocatalytic reduction of CO2

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9895-9898
DOI: 10.1039/C4CC03424D, CommunicationVijay Reddy Jupally, Asantha C. Dharmaratne, David Crasto, Aron J. Huckaba, Chanaka Kumara, Praneeth Reddy Nimmala, Nuwan Kothalawala, Jared H. Delcamp, Amala Dass
Au137(SR)56 has been synthesized with three ligands and two nano-alloys, isolated and assigned using mass spectrometry tools. UV-Vis-NIR absorption, voltammetry and CO2 reduction properties are also reported.
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[Pd(C[logical and]N)(X)(PPh3)] palladacycles react with 2,4,6-trifluorophenyl boronic acid to give stable transmetallation products of the type [Pd(C[logical and]N)(2,4,6-F3C6H2)(PPh3)]

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9859-9861
DOI: 10.1039/C4CC04203D, CommunicationAnant R. Kapdi, Gopal Dhangar, Jose Luis Serrano, Jose Perez, Luis Garcia, Ian J. S. Fairlamb
Evidence for a direct transmetallation between a palladacycle (containing acetate and imidate pseudohalides) with 2,4,6-trifluorophenyl boronic acid is presented in this paper.
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Carbonylative enantioselective meso-desymmetrization of cis-epoxides to trans-[small beta]-lactones: effect of salen-ligand electronic variation on enantioselectivity

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9842-9845
DOI: 10.1039/C4CC04397A, CommunicationMichael Mulzer, Jessica R. Lamb, Zachary Nelson, Geoffrey W. Coates
Carbonylation catalysts for the desymmetrization of meso-epoxides yielding enantioenriched trans-[small beta]-lactones are reported.
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Influence of redox non-innocent phenylenediamido ligands on chromium imido hydrogen-atom abstraction reactivity

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9958-9960
DOI: 10.1039/C4CC04545A, CommunicationWen Zhou, Brian O. Patrick, Kevin M. Smith
Reaction of new CpCr[(RN)2C6H4] complexes (R = SiMe3, CH2CMe3, Ph) with organic azides generates chromium imido complexes.
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Incorporation of heterostructured Sn/SnO nanoparticles in crumpled nitrogen-doped graphene nanosheets for application as anodes in lithium-ion batteries

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9961-9964
DOI: 10.1039/C4CC04187A, CommunicationFei-Hu Du, Yu-Si Liu, Jie Long, Qian-Cheng Zhu, Kai-Xue Wang, Xiao Wei, Jie-Sheng Chen
Sn/SnO nanoparticles are incorporated in crumpled nitrogen-doped graphene nanosheets by a simple melting diffusion method, generating a composite exhibiting excellent electrochemical performance.
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Fluorescent polymeric aggregates for selective response to Sarin surrogates

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9965-9968
DOI: 10.1039/C4CC03580A, CommunicationAnca D. Rusu, Ioana A . Moleavin, Nicolae Hurduc, Matthieu Hamel, Licinio Rocha
Fluorescent polymeric chemical sensors with double signal generation in aqueous solutions for Sarin detection.
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Synthesis and kinetic resolution of N-Boc-2-arylpiperidines

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9910-9913
DOI: 10.1039/C4CC04576A, CommunicationEdward J. Cochrane, Daniele Leonori, Lorraine A. Hassall, Iain Coldham
An efficient kinetic resolution of 2-arylpiperidines was developed using a chiral base.
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Simultaneous SERS detection and imaging of two biomarkers on the cancer cell surface by self-assembly of branched DNA-gold nanoaggregates

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9907-9909
DOI: 10.1039/C4CC05226A, CommunicationYing Li, Xindi Qi, Chengcun Lei, Qifeng Yue, Shusheng Zhang
A surface-enhanced Raman scattering (SERS) method has been proposed for simultaneous detection and imaging of two biomarkers on the surface of a single human breast cancer cell (MCF-7) by self-assembly of branched DNA-gold nanoaggregates.
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Nanoscale metal-organic frameworks as highly sensitive luminescent sensors for Fe2+ in aqueous solution and living cells

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9969-9972
DOI: 10.1039/C4CC04524F, CommunicationYe Lu, Bing Yan, Jin-Liang Liu
We report the exploration of fluorescent nanoscale metal-organic frameworks (nMOF-253s) for highly selective and sensitive detection of Fe2+ ions in aqueous solution. Moreover, nMOF-253 of 50 nm is successfully applied in fluorescent bioimaging and intracellular Fe2+ sensing in HeLa cells.
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Convergent and divergent two-dimensional coordination networks formed through substrate-activated or quenched alkynyl ligation

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9973-9976
DOI: 10.1039/C4CC03723E, CommunicationJan Cechal, Christopher S. Kley, Takashi Kumagai, Frank Schramm, Mario Ruben, Sebastian Stepanow, Klaus Kern
Ni-alkynyl coordination can be quenched or activated depending on the metal surface leading to long-range ordered or random networks, respectively.
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A highly selective water-soluble optical probe for endogenous peroxynitrite

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9947-9950
DOI: 10.1039/C4CC04192E, CommunicationJi-Ting Hou, Jin Yang, Kun Li, Ye-Xin Liao, Kang-Kang Yu, Yong-Mei Xie, Xiao-Qi Yu
A water-soluble colorimetric and fluorescent probe C-Py-1 for ONOO- was prepared and it could exhibit high sensitivity and excellent selectivity toward ONOO- among ROS and RNS with a rapid response time. Meanwhile, it was successfully applied in the imaging of endogenous ONOO- in RAW264.7 cells.
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Self-assembly of NH2-([small alpha],L-lysine)5-COOH and SDS into nanodiscs or nanoribbons regulated by pH

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9943-9946
DOI: 10.1039/C4CC04035J, CommunicationS. Zhang, S. Yang, J. Zang, R. Yang, G. Zhao, C. Xu
NH2-([small alpha],L-lysine)5-COOH and SDS can self-assemble into nanodiscs or nanoribbons regulated by pH.
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New conjugated molecular scaffolds based on [2,2]paracyclophane as electron acceptors for organic photovoltaic cells

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9939-9942
DOI: 10.1039/C4CC04384G, CommunicationYang Yang, Guanxin Zhang, Chenmin Yu, Chang He, Jianguo Wang, Xin Chen, Jingjing Yao, Zitong Liu, Deqing Zhang
Two conjugated molecules with a [2,2]paracyclophane framework were synthesized for solution-processed BHJ solar cells. With P3HT as the donor, the best power conversion efficiency (PCE) of 2.69% was obtained.
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Direct oxidative nitration of aromatic sulfonamides under mild conditions

3 August, 2014 - 17:17

Chem. Commun., 2014, 50,9936-9938
DOI: 10.1039/C4CC03784G, CommunicationYing-Xiu Li, Lian-Hua Li, Yan-Fang Yang, Hui-Liang Hua, Xiao-Biao Yan, Lian-Biao Zhao, Jin-Bang Zhang, Fa-Jin Ji, Yong-Min Liang
This efficient reaction proceeds under very mild conditions with low cost nitration reagents and can be applied in gram-scale preparation.
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