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A Lithiomethyl Trimethylammonium Reagent as Methylene Donor

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04579C, CommunicationPeter Chen, Juan Manuel Sarria Toro, Tim den Hartog, Erik P. A. Couzijn
Straightforward deprotonation of soluble tetramethylammonium salts with alkyllithium reagents gives lithiomethyl trimethylammonium reagents. Coordination of the Li cation is crucial to the stability of these 'N-C ylides'. These reagents were...
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Plasmon Resonance-Enhanced Circularly Polarized Luminescence of Self-Assembled Meso-tetrakis(4-sulfonatophenyl)porphyrin-Surfactant Complexes in Interaction with Ag Nanoparticles

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04477K, CommunicationTakunori Harada, Naoki Kajiyama, Kei Ishizaka, Reona Toyofuku, Katsuki Izumi, Kazuo Umemura, Yoshitane IMAI, Naoya Taniguchi, Kenji Mishima
The chiroptical properties of anionic meso-tetrakis(4-sulfonatophenyl)porphyrin (TPPS) complexed with cationic surfactants were enhanced by interaction with silver nanoparticles (AgNPs) in acidic solution. Improvement in chiroptical properties was revealed by circular...
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Selective reduction of carbon dioxide to formate through bicarbonate reduction on metal electrodes: New insights gained from substrate-generation/tip-collection mode of scanning electrochemical microscopy

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC03099K, CommunicationPhani KLN, Sreekanth Narayanaru
We discovered in SECM of electro-reduction of CO2 at Au in CO2-saturated KHCO3 solutions that (i) formate comes solely from direct reduction of bicarbonate; and (ii) CO forms only from...
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2'-Deoxyuridine Conjugated with a Reactive Monobenzocyclooctyne as a DNA Building Block for Copper-Free Click-type Postsynthetic Modification of DNA

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC02855D, CommunicationClaudua Stubinitzky, Gergely B Cserep, Effi Batzner, Peter Kele, Hans-Achim Wagenknecht
The carboxymethylmonobenzocyclooctyne group attached to the 5-position of a 2'-deoxyuridine in DNA allows rapid and efficient copper-free postsynthetic modification as demonstrated with a far-red emitting fluorescent azide probe. Upon labeling...
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DNA Sequence-Dependent Photoluminescence Enhancement in a Cationic Conjugated Polyelectrolyte

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC03417A, CommunicationZhongwei Liu, Hsing-Ling Wang, Mircea Cotlet
DNA sequence-dependent photoluminescence enhancement is found for a cationic polyelectrolyte complexed with single stranded DNA and described as a result of an interplay between electrostatic attraction and [small pi]-[small pi] stacking between...
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Graphene-supported Pt and PtPd Nanorods with Enhanced Electrocatalytic Performance for Oxygen Reduction Reaction

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04595E, CommunicationYi-Chia Tseng, Hong-Shuo Chen, Yu-Ting Liang, Tsan-Yao Chen, Chen-Wei Liu, Shu-Ru Chung, Chien-Te Hsieh, Cheng-En Lee, Kuan-Wen Wang
In this study, we investigate the effect of alloying and supports on the modification of d-band vacancy and oxygen reduction reaction (ORR) activity of graphene-supported Pt and PtPd nanorods (NRs)....
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Synthesis of Tetraphenylethylene Pillar[6]arenes and the Selective Fast Quenching of Their AIE Fluorescence by TNT

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05189K, CommunicationYan-Song Zheng, Jin-Hua Wang, Hai-Tao Feng
Tetraphenylethylene pillar[6]arenes with AIE effect were synthesized for the first time. The fluorescence of the pillar[6]arene could be quenched much more and much faster by TNT than by other nitroaromatics...
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Benzothiazole Derivatives Augment Glucose Uptake in Skeletal Muscle Cells and Stimulate Insulin Secretion from Pancreatic [small beta]-Cells via AMPK Activation

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC03310H, CommunicationA. Gruzman, Lily Pasternak, Ella Meltzer-Mats, Gali Babai-Shani, Guy Cohen, Olga Viskind, Juergen Eckel, Erol Cerasi, Shlomo Sasson
Adenosine Monophosphate-Activated Protein Kinase (AMPK) has been identified as one of the major targets for antidiabetic drugs. This study describes two AMPK-activating agents 2-(benzo[d]thiazol-2-ylmethylthio)-6-ethoxybenzo[d]thiazole and 2-(propylthio)benzo[d]thiazol-6-ol, that increase the rate...
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Membrane lipid peroxidation by the peroxidase-like activity of magnetite nanoparticles

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC03082F, CommunicationLijun Wang, Yue Min, Doudou Xu, Fengjiao Yu, Wuzong Zhou, Alfred Cuschieri
We report that Fe3O4 nanoparticles are able to catalyse lipid peroxidation in liposomes in acidic but not neutral pH. The oxidation is dependent on either pre-existing lipid peroxides or hydrogen...
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Alkyne Mechanochemistry: Putative Activation by Transoidal Bending

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC03514C, CommunicationCharles Diesendruck, Lingyang Zhu, Jeff Moore
We investigated the use of mechanical stress to bend carbon-carbon triple bonds. Formation of an isoquinoline after reaction with a benzyl azide trap points towards a nucleophilic addition mechanism, differentiating...
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Red-Luminescent Biphosphine Stabilized 'Cu12S6' Cluster Molecules

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04702H, CommunicationAndreas Eichhoefer, Xiao Xun Yang, Ibrahim Issac, Sergei Lebedkin, Michael Kuehn, Florian Weigend, olaf fuhr, Dieter Fenske
The synthesis, molecular structures and luminescence properties of two 'Cu12S6' cluster molecules with stabilizing bidentate phosphine ligands are described. Both display in the solid state at ambient temperature high photoluminescence...
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High-efficient Synthesis of Covalent Porphyrinic Cages via DABCO-templated Imine Condensation Reactions

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05449K, CommunicationCheng Wang, Huimin Ding, Xiangshi Meng, Xu Cui, Yihui Yang, Tailin Zhou, Caixing Wang, Matthias Zeller
We report a new approach to construct covalent porphyrinic cages with different spacer lengths, in which the cage compounds have been conveniently synthesized in quantitative yields, via DABCO-templated imine condensation...
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Electrocatalytic Hydrogen Evolution Using Amorphous Tungsten Phosphide Nanoparticles

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04709E, CommunicationJoshua McEnaney, Jonathan Chance Crompton, Juan Callejas, Eric Popczun, Carlos Read, Nathan Lewis, Raymond Schaak
Amorphous tungsten phosphide (WP), which has been synthesized as colloidal nanoparticles with an average diameter of 3 nm, has been identified as a new electrocatalyst for the hydrogen-evolution reaction (HER)...
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Graphene/graphite sheets assisted growth of high-areal-density horizontally aligned carbon nanotubes

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04434G, CommunicationHuanhuan Xie, Zhang Rufan, yingying zhang, Wenlin Zhang, Muqiang Jian, chunya wang, Qi Wang, Fei Wei
We report a facile graphene/graphite sheet assisted CVD process for the synthesis of high-areal-density HACNT arrays. Besides, some metal nanoparticles could eat the graphene/graphite sheets, forming serpentine holes on the...
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Size Tunable Synthesis of Solution Processable Diamond Nanocrystals

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC01899K, CommunicationManik Mandal, Fadi Haso, Tianbo Liu, Yingwei Fei, Kai Landskron
Diamond nanocrystals were synthesized catalyst-free from nanoporous carbon at high pressure and high temperature (HPHT). The synthesized nanocrystals have tunable diameters between 50 and 200 nm. The nanocrystals are dispersible...
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Bicomponent hydrogen-bonded nanostructures formed by two complementary molecular Landers on Au(111)

Chem. Commun. - 30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03550J, CommunicationN. Kalashnyk, M. Yu, R. Barattin, Y. Benjalal, M. Hliwa, C. Joachim, E. Laegsgaard, F. Besenbacher, A. Gourdon, X. Bouju, T. R. Linderoth
One- and two-dimensional structures formed by two Lander molecules on Au(111) via 3D-optimized or complementary triple H-bonding are studied by scanning tunneling microscopy and rationalized by numerical calculations.
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Structural Effect on the Resistive Switching Behavior of Triphenylamine-Based Poly(azomethine)s

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05233A, CommunicationWenbin Zhang, Cheng Wang, Gang Liu, Jun Wang, Yu Chen, Runwei Li
Linear and hyperbranched poly(azomethine)s (PAMs) based on triphenylamine moieties are synthesized and used as the functioning layers in the Ta/PAM/Pt resistive switching memory devices. Comparably, the hyperbranched PAM with isotropic...
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Designing Two-Photon Fluorescent Probes Based on Target-Induced Enhancement of Absorption Cross Section

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05010J, CommunicationLingyu Zeng, Shiyu Chen, Tian Xia, Cheng Zhong, Zhi-hong Liu
We reported a new strategy to design two-photon (2P) fluorescent probes for simultaneous elevation of 2P absorption cross section ([small delta]) and quantum yield ([capital Phi]). The target-induced hydrogen bond-chelated ring enhances...
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Cyclometalated Ir(III) Complexes as Targeted Theranostic Anticancer Therapeutics: Combining HDAC Inhibition with Photodynamic Therapy

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05215C, CommunicationRui-Rong Ye, Caiping Tan, Liang He, Mu-He Chen, Liang-Nian Ji, Zong-Wan MAO
The successful design and anticancer mechanism studies of a series of cyclometalated Ir(III) complexes with histone deacetylase inhibitory and photodynamic therapy (PDT) activities are reported.
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In Situ Generation of Redox Active Peptides Driven by Selenoester Mediated Native Chemical Ligation

Chem. Commun. - 30 July, 2014 - 17:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC03835E, CommunicationApurba K Das, Dnyaneshwar B Rasale, Indrajit Maity
Redox active peptides are generated through a novel approach selenoester mediated native chemical ligation (NCL). Distinct nanostructures such as nanotubes to nanofibrillar architectures were observed for self-assembling soft materials.
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