Chem. Commun.

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Acceleration of thiol additive-free native chemical ligation by intramolecular S-S acyl transfer

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC01447F, CommunicationJosephine Schmalisch, Oliver Seitz
Peptide-mercaptopropionylcysteine (MPA-Cys) thioesters show a surprisingly high reactivity in native chemical ligation (NCL) and allow thiol-additive free reactions. This facilitates sequential NCL reactions and ligation-desulfurization reactions in one-pot formats. The...
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A membraneless air-breathing hydrogen biofuel cell based on direct wiring of thermostable enzymes on carbon nanotube electrodes

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC02166A, CommunicationNoemie Lalaoui, Anne de Poulpiquet, Raoudha Haddad, Alan Le Goff, Michael Holzinger, Sebastien Gounel, Michel Mermoux, Pascale Infossi, Nicolas Mano, Elisabeth Lojou, Serge Cosnier
A biocathode was designed by the modification of a carbon nanotube (CNT) gas-diffusion electrode with bilirubin oxidase from Bacillus pumilus, achieving high current densities up to 3 mA cm-2 for...
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"Anion clamp" allows flexible protein to impose coordination geometry on metal ions

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C4CC09642H, CommunicationMinji Wang, Tsz Pui Lai, li wang, Hongmin Zhang, Nan Yang, Peter J Sadler, Hongzhe Sun
X-ray crystal structures of human serum transferrin (77 kDa) with YbIII or FeIII bound to the C-lobe and malonate as the synergistic anion show that the large YbIII ion causes...
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Catalytic Asymmetric Hydrogenation of Quinoline Carbocycles: Unusual Chemoselectivity in the Hydrogenation of Quinolines

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC01971K, CommunicationRyoichi Kuwano, Ryuhei Ikeda, Kazuki Hirasada
The reduction of quinolines selectively took place on their carbocyclic rings to give 5,6,7,8-tetrahydroquinolines, when the hydrogenation was conducted in the presence of Ru([small eta]3-methallyl)2(cod)-PhTRAP catalyst. The chiral ruthenium catalyst converted...
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Dioxygen Activation and Two Consecutive Oxidative Decarboxylations of Phenylpyruvate by Nonheme Iron(II) Complexes: Functional Models of Hydroxymandelate Synthase (HMS) and CloR

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC01652E, CommunicationDebobrata Sheet, Shrabanti Bhattacharya, Tapan Kanti Paine
The nonheme iron enzymes hydroxymandelate synthase (HMS) and CloR both catalyze the oxidative decarboxylation of 4-hydroxyphenylpyruvic acid substrates to the corresponding mandelic acid with the incorporation of both the oxygen...
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Zirconium catalysed intermolecular hydroamination reactions of secondary amines with alkynes

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC01780G, CommunicationQiu Sun, Yaorong Wang, Dan Yuan, Yingming Yao, Qi Shen
An in situ generated cationic zirconium complex stabilized by an n-butylamine-bridged bis(phenolato) ligand has been developed to catalyse hydroamination reactions of secondary amines, which is the first example of group...
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Quantum Confinement-Tunable Intersystem Crossing and Triplet State Lifetime of Cationic Porphyrin-CdTe Quantum Dot Nano-assemblies

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC01542A, CommunicationOmar F. Mohammed, Ghada Ahmed, shawkat Aly, Anwar Usman, Mohammed Eita, Vasily Melnikov
Here, we report a ground-state interaction between the positively charged cationic porphyrin and the negatively charged carboxylate groups of the thiol ligands on the surface of CdTe quantum dots (QDs),...
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Janus gas: Reversible redox transition of Sarin enables its selective detection by an ethanol modified nanoporous SnO2 chemiresistor

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC01798J, CommunicationZhengfei Dai, Guotao Duan, Zhenxing Cheng, Lei Xu, Tie Li, Guangqiang Liu, Hongwen Zhang, Yue Li, Weiping Cai
A reversible janus gas redox transition is discovered in the trace sarin sensing process using an ethanol-aged nanoporous SnO2 micro-chemiresistor, which is reliable to realize the identification of Sarin from...
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Ground to conduct: mechanochemical synthesis of a metal-organic framework with high proton conductivity

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC01789K, CommunicationDariusz Matoga, Marcin Oszajca, Marcin Molenda
We report a high proton-conducting material prepared for the first time by economical and environmentally-friendly mechanochemistry. Structure elucidation of the material from powder X-ray diffraction data reveals the details of...
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Ammonia detection by using flexible Lewis acidic sites in luminescent porous frameworks constructed from bipyridinium derivative

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC01239B, CommunicationCheng Chen, Li-Xuan Cai, Bin Tan, Ya-Jun Zhang, Xiao-Dong Yang, Jie Zhang
A flexible bipyridinium ligand with Lewis acidic sites has been introduced into two isomorphous metal-organic frameworks to yield luminescent porous materials with subtriangular pore windows, which exhibit sensitive fluorescent response...
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Semiconductor-enhanced Raman scattering for highly robust SERS sensing: the case of phosphates analysis

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC02395E, CommunicationWei Ji, Wei Song, Ichiro Tanabe, Yue Wang, Bing Zhao, Yukihiro Ozaki
Quantitative analysis for phosphate anions was achieved by measurement of "turn-off" SERS based on the first-layer effect of chemical mechanism. More importantly, our results demonstrate that it is possible, by...
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Remarkably Stable Chelating Bis-N-Heterocyclic Carbene Adducts of Phosphorus(I) Cations

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC00331H, CommunicationJustin Frank Binder, Ala'aeddeen Swidan, Martin Tang, Jennifer Hien Nguyen, Charles L B Macdonald
A convenient one-pot synthesis of chelating bis-N-heterocyclic carbene-ligated P(I) salts is described. The solid state structures of these remarkably stable phosphamethine cyanine dyes with various N-alkyl groups and counter-anions are...
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A Facile Route to Carbon Cladded TiO2 Nanotubes: Used here to create 3D Highly Defined and Efficient RuO2 Structures for Supercapacitors

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC00728C, CommunicationZhida Gao, Xu Zhu, Ya-Hang Li, Xuemei Zhou, Yan-Yan Song, Patrik Schmuki
In this work we introduce a facile procedure that allows a highly conformal coating of self-organized TiO2 nanotubes (NTs) with a graphite-like thin carbon layer. This provides a platform to...
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Site-selective Recognition of Peptide Phosphorylation by a Terbium(III) Complex in Aqueous Solution

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC01056J, CommunicationXiaohui Wang, Tao Yang, Jian Luo, Liu Yang, cheng yao
A terbium(III) complex exhibits efficient selectivity for proximal diphosphorylation of peptides, accompanied with remarkable luminescence enhancement in the presence of Zn(II) ions in both buffer and protein extraction solution from...
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Facile and efficient synthesis of polystyrene/gold-platinum composite particles and their application for aerobic oxidation of alcohols in water

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC01053E, CommunicationYunxing Li, Yan Gao, Cheng Yang
Herein we develop a facile and effective method for the synthesis of composite particles composed of polystyrene microspheres decorated with gold-platinum alloy nanoparticles, which exhibited excellent catalytic activity and recyclability...
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Regioselectivity in the Au-Catalyzed Hydration and Hydroalkoxylation of Alkynes

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC00120J, Feature ArticleJustin A. Goodwin, Aaron Aponick
Over the past decade and a half, homogenous gold catalysis has emerged as a diverse and rich field of research resulting in the continuous development of new methods for organic...
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A polyhedral oligomeric silsesquioxane functionalized copper trimesate

30 March, 2015 - 05:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C5CC01928A, CommunicationE. S. Sanil, Kyung-Ho Cho, Do-Young Hong, Ji Sun Lee, Su-Kyung Lee, Sam Gon Ryu, Hae Wan Lee, Jong-San Chang, Young Kyu Hwang
A metal-organic framework (MOF), copper trimesate (Cu3(BTC)2), was selectively functionalized with aminopropylisooctyl polyhedral oligomeric silsesquioxane (O-POSS) to make the external surface of Cu3(BTC)2 hydrophobic and thereby enhance the stability of the material against humidity.
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Highly efficient and stable photocatalytic reduction of CO2 to CH4 over Ru loaded NaTaO3

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC01124H, CommunicationMu LI, Peng Li, Kun Chang, Tao Wang, Lequan Liu, Qing Kang, Shuxin Ouyang, Jinhua Ye
An efficient and stable photocatalytic activity was obtained over NaTaO3 by introducing electron donor (H2) into the CO2 reduction process with water. Ru/NaTaO3 demonstrated the best activity (CH4 51.8 [small mu ]mol...
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Rhodium-Catalysed Synthesis of Multi-Substituted Silylindenes from Aryl Alkynes and Hydrosilanes via C-H Bond Activation

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC01569C, CommunicationShunsuke Sueki, Yoichiro Kuninobu
We successfully developed a first rhodium-catalysed synthesis of multi-substituted silylindenes from 2 equivalents of aryl alkynes and 1 equivalent of hydrosilanes in moderate to good yields via C-H bond activation....
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Rh(III)- or Ir(III)-Catalyzed Ynone Synthesis from Aldehydes via Chelation-Assisted C-H Bond Activation

30 March, 2015 - 05:54
Chem. Commun., 2015, Accepted Manuscript
DOI: 10.1039/C5CC00758E, CommunicationWen Ai, Yunxiang Wu, Huanyu Tang, Xue-Yan Yang, Ya-Xi Yang, Yuan-Chao Li, Bing Zhou
A Rh(III)- or Ir(III)-catalyzed direct aldehyde C-H alkynylation was developed for the first time as a simple and practical method for the synthesis of ynones. This catalytic reaction proceeds under...
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