Chem. Commun.

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Gold-catalyzed 1,2-iminonitronation of electron-deficient alkynes with nitrosoarenes to afford [small alpha]-imidoyl nitrones

20 November, 2014 - 21:17

Chem. Commun., 2014, 50,15864-15866
DOI: 10.1039/C4CC06962E, CommunicationRahulKumar Rajmani Singh, Rai-Shung Liu
Gold-catalyzed 1,2-iminonitronation of diverse propiolate derivatives with nitrosoarenes to give [small alpha]-imidoyl nitrones is described.
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Thiol-modified gold nanoparticles for the inhibition of Mycobacterium smegmatis

20 November, 2014 - 21:17

Chem. Commun., 2014, 50,15860-15863
DOI: 10.1039/C4CC06236A, CommunicationJennifer C. Gifford, Jamee Bresee, Carly Jo Carter, Guankui Wang, Roberta J. Melander, Christian Melander, Daniel L. Feldheim
We demonstrate that Small Molecule Variable Ligand Display expanded around feed ratio parameter space identified gold nanoparticle conjugates that are potent inhibitors of mycobacterium growth, addressing a lack of innovative approaches to treat infections caused by mycobacteria such as TB.
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Fructose-coated nanoparticles: a promising drug nanocarrier for triple-negative breast cancer therapy

20 November, 2014 - 21:17

Chem. Commun., 2014, 50,15928-15931
DOI: 10.1039/C4CC06651K, CommunicationJiacheng Zhao, Krzysztof Babiuch, Hongxu Lu, Aydan Dag, Michael Gottschaldt, Martina H. Stenzel
Overexpression of GLUT5 in breast cancer cell lines leads to extensive uptake of fructose bearing nanoparticles.
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Bright white-light emission from a novel donor-acceptor organic molecule in the solid state via intermolecular charge transfer

20 November, 2014 - 21:17

Chem. Commun., 2014, 50,15878-15881
DOI: 10.1039/C4CC07063A, CommunicationXu-Hui Jin, Cheng Chen, Cai-Xia Ren, Li-Xuan Cai, Jie Zhang
A new approach to generate solid-state white-light emission from a simple single pyridinium molecule is reported.
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Ligand replacement induced chemiluminescence for selective detection of an organophosphorus pesticide using bifunctional Au-Fe3O4 dumbbell-like nanoparticles

20 November, 2014 - 21:17

Chem. Commun., 2014, 50,15870-15873
DOI: 10.1039/C4CC07430K, CommunicationJian Zhang, Jianping Wang, Liang Yang, Bianhua Liu, Guijian Guan, Changlong Jiang, Zhongping Zhang
A ligand replacement induced chemiluminescence method is developed for detecting parathion-methyl using Au-Fe3O4 dumbbell-like nanoparticles.
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Highly diastereo- and enantioselective construction of a spiro[cyclopenta[b]indole-1,3[prime or minute]-oxindole] scaffold via catalytic asymmetric formal [3+2] cycloadditions

20 November, 2014 - 21:17

Chem. Commun., 2014, 50,15901-15904
DOI: 10.1039/C4CC07246D, CommunicationWei Tan, Xin Li, Yu-Xin Gong, Meng-Di Ge, Feng Shi
An organocatalytic asymmetric formal [3+2] cycloaddition of isatin-derived 3-indolylmethanol with 3-methyl-2-vinylindole has been established, leading to highly stereoselective construction of a spiro[cyclopenta[b]indole-1,3[prime or minute]-oxindole] scaffold.
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Aptamer-mediated 'turn-off/turn-on' nanozyme activity of gold nanoparticles for kanamycin detection

20 November, 2014 - 21:17

Chem. Commun., 2014, 50,15856-15859
DOI: 10.1039/C4CC07275H, CommunicationTarun Kumar Sharma, Rajesh Ramanathan, Pabudi Weerathunge, Mahsa Mohammadtaheri, Hemant Kumar Daima, Ravi Shukla, Vipul Bansal
A new ultrafast and highly sensitive 'turn-off/turn-on' biosensing approach that combines the intrinsic peroxidase-like activity of gold nanoparticles (GNPs) with the high affinity and specificity of a ssDNA aptamer is presented.
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On-surface synthesis of organometallic complex via metal-alkene interactions

20 November, 2014 - 21:17

Chem. Commun., 2014, 50,15924-15927
DOI: 10.1039/C4CC06925K, CommunicationChi Zhang, Qiang Sun, Huihui Kong, Likun Wang, Qinggang Tan, Wei Xu
From the interplay of high-resolution STM imaging/manipulation and DFT calculations, we have shown that the formation of an organometallic complex involving copper adatoms by metal-alkene interactions can be successfully achieved in a relatively high yield, where the specific molecular adsorption geometry is the key for facilitating the copper-alkene interaction.
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Copper-catalyzed enantioselective 1,4-addition of alkyl groups to N-sulfonyl imines

20 November, 2014 - 21:17

Chem. Commun., 2014, 50,15897-15900
DOI: 10.1039/C4CC07134D, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Johannes Westmeier, Paultheo von Zezschwitz
Asymmetric 1,4-additions of alkyl groups to cyclic imines show several unique features, and 3-alkylcycloalkyl amines are obtained after subsequent reductions.
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Protein secondary-shell interactions enhance the photoinduced hydrogen production of cobalt protoporphyrin IX

20 November, 2014 - 21:17

Chem. Commun., 2014, 50,15852-15855
DOI: 10.1039/C4CC06700B, CommunicationDayn Joseph Sommer, Michael David Vaughn, Giovanna Ghirlanda
An efficient molecular catalyst for hydrogen production is generated by incorporating Co-protoporphyrin IX into myoglobin. The activity is modulated by engineered mutations.
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Stimuli-responsive photonic polymer coatings

20 November, 2014 - 21:17

Chem. Commun., 2014, 50,15839-15848
DOI: 10.1039/C4CC05072J, Feature ArticleJelle E. Stumpel, Dirk J. Broer, Albertus P. H. J. Schenning
This feature article focuses on the highlights in the development of photonic polymer coatings that can change their volume or surface topology in a reversible, dynamic fashion when exposed to an external stimulus.
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Application of a Nucleophilic Boryl Complex in Frustrated Lewis Pair: Activation of H-H, B-H and C=C bonds with B(C6F5)3 and Boryl-borate Lithium

20 November, 2014 - 21:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07658C, CommunicationJunhao Zheng, Yuwen Wang, Zhenhua Li, Huadong Wang
The frustrated Lewis pair comprised of B(C6F5)3 and a boryl-borate lithium salt Li[pinBB(Ph)pin] can efficiently activate dihydrogen, pinacolborane and ethylene at ambient temperature. Theoretical studies suggest that the nucleophilic sp2...
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Reversible catalysis for the reaction between methyl orange and NaBH4 by silver nanoparticles

20 November, 2014 - 21:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07711C, CommunicationLi-Qing Zheng, Xiao-Dong Yu, Jing-Juan Xu, Hong-Yuan Chen
The reaction between MO and NaBH4 catalyzed by Ag NPs has been studied. Ag NPs catalyzed the reduction of MO rapidly, while adding CTAB into the solution caused the regeneration...
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Highly dispersed Fe2O3 on carbon nanotubes for low-temperature selective catalytic reduction of NO with NH3

20 November, 2014 - 21:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06941B, CommunicationZhenping Qu, Lei Miao, Hui Wang, Qiang Fu
The highly dispersed Fe2O3 nanoparticles supported on carbon nanotubes, prepared by a simple ethanol-assisted impregnation method, showed above 90% NO conversion and selectivity at low temperatures (200-325oC). Moreover the excellent...
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Nickel-Mediated Oxidative [small alpha]-C(sp3)-H Functionalization of Amides with Allylic Alcohols Terminated by Radical 1,2-Aryl Migration

20 November, 2014 - 21:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08797F, CommunicationRen-Jie Song, Yong Qiang Tu, Dao-Yong Zhu, Fu-Min Zhang, Shao-Hua Wang
A Ni-mediated oxidative C(sp3)-H functionalization of N,N-substituted amides with [small alpha],[small alpha]-diaryl allylic alcohols through a radical 1,2-aryl migration process has been developed. This process features a broad substrate scope and excellent...
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Dual-Responsive Nanoparticles that Aggregate under the Simultaneous Action of Light and CO2

20 November, 2014 - 21:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08541H, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Ji-Woong Lee, Rafal Klajn
Metallic nanoparticles co-functionalised with monolayers of UV- and CO2-sensitive ligands were prepared and we shown to respond to these two types of stimuli reversibly and in an orthogonal fashion. The...
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Dark ESR spectroscopy for monitoring photochemical and thermal degradation of conjugated polymers used as electron donor materials in organic bulk heterojunction solar cells

18 November, 2014 - 20:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08146C, CommunicationLyubov A Frolova, Natalya P Piven, Diana Susarova, Alexander V Akkuratov, Sergey Babenko, Pavel Troshin
It was shown that ESR spectroscopy represents very useful technique for monitoring photochemical and thermal degradation of conjugated polymers commonly used as electron donor materials in organic solar cells. Relative...
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Dual role of micelles as templates and reducing agent for the fabrication of catalytically active hollow silver nanospheres

18 November, 2014 - 20:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07872A, CommunicationManickam Sasidharan, Senthil Chenrayan, Vandana Kumari, Asim Bhaumik
We report a simple and efficient protocol for fabrication of colloidal hollow silver nanospheres of size less than 30 nm using ABC triblock copolymer poly(styrene-b-vinyl-2-pyridine-b-ethylene oxide) in the absence of...
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Disodium Diselenide in Colloidal Nanocrystals: Acting as an Anion Exchange Precursor, Metal Selenide Precursor, and Chalcogenide Ligand

18 November, 2014 - 20:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07438F, CommunicationDonghyeuk Choi, Seungyeol Lee, Junho Lee, Kyung Sang Cho, Sang-Wook Kim
New application areas using very simple alkali metal chalcogenide, disodium diselenide (Na2Se2), has been developed. Prepared alkali metal chalcogenides(disodium diselenide, Na2Se2) are acting as an anionic exchange precursor(PbS to PbS/PbSe),...
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Porphyrin derivatives as potent and selective blockers of neuronal Kv1 channels

18 November, 2014 - 20:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05639F, CommunicationKieran Nolan, Ahmed Al-Sabi, Declan Daly, Oliver Dolly, Gemma Kinsella
Selective inhibitors of voltage-activated K+ channels are needed for the treatment of multiple sclerosis. In this work it was discovered that porphyrins bearing 2-4 carbon alkyl ammonium side chains predominantly...
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