Chem. Commun.

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Functional helquats: helical cationic dyes with marked, switchable chiroptical properties in the visible region

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08967G, CommunicationFilip Teply, Paul E. Reyes-Gutierrez, Michael Jirasek, Lukas Severa, Pavlina Novotna, Dusan Koval, Petra Sazelova, Jan Vavra, Andreas Meyer, Ivana Cisarova, David Saman, Radek Pohl, Petr Stepanek, Petr Slavicek, Benjamin Coe, Miroslav Hajek, Vaclav Kasicka, Marie Urbanova
Helquat dyes are the first helicene-like cationic styryl dyes obtained as separate enantiomers. Their remarkable chiroptical properties are due to unique combination of cationic hemicyanine chromophore with helicene-like motif. Magnitude...
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C-H Activation Dependent Pd-Catalyzed Carbonylative Coupling of (Hetero)Aryl Bromides and Polyfluoroarenes

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09303H, CommunicationTroels Skrydstrup, Zhong Lian, Stig Friis
The carbonylative coupling of aryl and heteroaryl bromides with polyfluoroarenes via palladium-catalyzed C-H activation is presented. This transformation proceeds efficiently at moderate reaction temperatures and does not require strong base...
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Three-dimensional porous stretchable and conductive polymer composites based on graphene network grown by chemical vapour deposition and PEDOT:PSS coating

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09367D, CommunicationMengting Chen, Shasha Duan, Ling Zhang, Zhihui Wang, Chunzhong Li
We have manufactured a highly conductive and stretchable composite by backfilling the 3D graphene-PEDOT:PSS skeleton with poly(dimethylsiloxane) (PDMS). The electrical conductivity of our product can reach 24 S cm-1 with...
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Novel Lysosome Targeted Molecular Transporter Built On Guanidinium-Poly-(propylene imine) Hybrid Dendron For Efficient Delivery of Doxorubicin Into Cancer Cells

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09829C, CommunicationKaustabh Maiti, Jyothi B Nair, Saswat Mohapatra, Surajit Ghosh
Here we have demonstrated an efficient synthetic approach to construct targeted Molecular Transporter based on Guanidinium-Poly-(propylene imine) hybrid dendron, which showed higher cellular uptake than arginine octamer (Arg-8-mer) and exhibited...
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Direct Fabrication of Nanoporous Graphene from Graphene Oxide by Adding a Gasification Agent to a Magnesiothermic Reaction

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08977D, CommunicationZhenyu Xing, Bao Wang, Joshua Kane Halsted, Raghu Subashchandrabose, William F. Stickle, Xiulei Ji
CaCO3 acts as a gasification agent during magnesiothermic reduction of graphene oxide, thus preventing the newly formed graphene from restacking. The surface area of the obtained graphene increases from 66...
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SERS Optrode as a "fishing rod" to direct pre-concentrate analytes from superhydrophobic surfaces

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07928K, CommunicationAlexandre Brolo, Meikun Fan, Fansheng Cheng, cong wang, Zhengjun Gong, Changyu Tang, Changzhen Man
SERS optrodes were used to "fish" aqueous drops from superhydrophobic surfaces. The technique led to an improvement of 2-3 orders of magnitude in the lowest detectable amount of the Raman...
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Synthesis of highly monodisperse manganese oxide porous spheres using butyric acid microemulsion

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06634K, CommunicationStanton Ching, Ian J. Richter, Kathryn A. Tutunjian, David A Kriz, Yumi Kovic
This is an Accepted Manuscript, which has been through the RSC Publishing peer review process and has been accepted for publication. Accepted manuscripts are published online shortly after acceptance. This version of the article will be replaced by the fully edited, formatted and proof read Advance Article as soon as this is available.
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Microwave Assisted Formation of Monoreactive Perfluoroalkylsilane-based Self-Assembled Monolayers

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07494G, CommunicationAustin W.H. Lee, Brandy Kinkead, HimWai Ng, Byron D. Gates
We demonstrate the use of microwave radiation as a tool to accelerate the formation of perfluoroalkylsilane based self-assembled monolayers (SAMs) on silicon oxide surfaces. Surface coverage of these SAMs of...
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Non-redox Metal Ions Promoted Oxygen Transfer by a Non-heme Manganese Catalyst

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07981G, CommunicationZhuqi Chen, ling yang, Cholho Choe, Zhanao Lv, Guochuan Yin
This work demonstrates that non-redox metal ions as Lewis acid can sharply improve the oxygen transfer efficiency of a manganese(II) catalyst having non-heme ligand. In the absence of Lewis acid,...
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Charge Gradient-Induced On-Surface Growth of Ultralarge Single-crystalline Ag Nanomembranes for Long Surface Plasmon Propagation

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09370D, CommunicationHaili Qin, Xiong Xiong, Dongmin Wu, Feng Zhang, Dong Wang, Xia Liu, Wensheng Yang, Jian Jin
Inorganic nanomembranes possessing single-crystalline nonlayered structure with minimum lateral dimension at least three orders of magnitude larger than the thickness have attracted widespread attention due to their unusual physical properties...
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Synthesized Ultrathin MoS2 Nanosheets Perpendicular to Graphene for Catalysis of Hydrogen Evolution Reaction

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08491H, Communicationzihua deng, Li Li, Wei Ding, Kun Xiong, Zidong Wei
We synthesize the ultrathin MoS2 nanosheets perpendicular to reduced graphene oxides(MoS2[bottom]RGO) as an electro-catalyst, which exhibits excellent catalytic activity and good stability for the hydrogen evolution reaction(HER) in acidic medium.
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Monitoring Clinical Levels of Heparin in Human Blood Samples with an Indicator-Displacement Assay

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08563A, CommunicationLaurent Vial, Jean-Patrick Francoia, Robert Pascal
We report that a "tree-like" polymer of lysine is able to form a multi-ligand complex with a fluorescently labelled peptide, leading to the almost complete extinction of the optical signal...
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Ethylaluminum as Ethylene Source for the Mizoroki-Heck-type Reaction. Rhodium-catalyzed Preparation of Stilbene Derivatives

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09306B, CommunicationShota Tanaka, Kazuki Itami, Kazuhiro Sunahara, Go Tatsuta, Atsunori Mori
Treatment of organoaluminum reagent bearing aryl and ethyl groups furnishes 1,2-diarylethene derivatives in good to excellent yields by the catalysis of a rhodium complex, in which the ethyl group of...
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Gallium(III)- and calcium(II)-catalyzed Meyer-Schuster rearrangements followed by intramolecular aldol condensation or endo-Michael addition

17 December, 2014 - 03:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC09514F, CommunicationM. Presset, B. Michelet, R. Guillot, C. Bour, S. Bezzenine-Lafollee, V. Gandon
The first gallium- and calcium-catalyzed Meyer-Schuster rearrangements are described. The incipient conjugated ketones can undergo calcium-catalyzed aldol condensation (a) or endo-Michael addition (b) with [small beta]-keto esters or amides.
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Amide-triazole isosteric substitution for tuning self-assembly and incorporating new functions into soft supramolecular materials

17 December, 2014 - 03:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC08593K, CommunicationJurgen Bachl, Judith Mayr, Francisco J. Sayago, Carlos Cativiela, David Diaz Diaz
We report the proof-of-concept demonstration for the synthesis of novel supramolecular soft gel materials based on amide-triazole isometric substitution.
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Energy frameworks: Insights into interaction anisotropy and the mechanical properties of molecular crystals

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09074H, CommunicationMichael J. Turner, Sajesh P Thomas, Ming Wen Shi, Dylan Jayatilaka, Mark A. Spackman
We present an approach to understanding crystal packing via 'energy frameworks', that combines efficient calculation of accurate intermolecular interaction energies with a novel graphical representation of their magnitude. In this...
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Metal-Free Nitrative Cyclization of N-Aryl Imines with tert-Butyl Nitrite: Dehydrogenative Access to 3-Nitroindoles

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08498E, CommunicationGuo-Bo Deng, Jia-Ling Zhang, Yan-Yun Liu, Bang Liu, Xu-Heng Yang, Jin-Heng Li
We here describe a new metal-free route to the synthesis of 3-nitroindoles by the nitrative cyclization of N-aryl imines with tert-butyl nitrite. The radical transformation allows the assembly of the...
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A novel hydroxylamine ionic liquid salt resulting from the stabilization of NH2OH by a SO3H-functionalized ionic liquid

17 December, 2014 - 03:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08273G, CommunicationZhihui Li, Qiusheng Yang, Xudong Qi, Yuanyuan Xu, Dongsheng Zhang, Yanji Wang, Xinqiang Zhao
A SO3H-functionalized ionic liquid was used as an alternative to conventional inorganic acids in hydroxylamine stabilization, leading to the formation of a novel hydroxylamine ionic liquid salt that exhibits improved...
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Efficient hydration of alkynes through acid-assisted Bronsted acid catalysis

17 December, 2014 - 03:54

Chem. Commun., 2015, 51,903-906
DOI: 10.1039/C4CC08938C, CommunicationShengzong Liang, Gerald B. Hammond, Bo Xu
The combined acid catalyzed hydration of alkynes is an efficient one-step synthesis of carbonyl compounds.
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Disodium diselenide in colloidal nanocrystals: acting as an anion exchange precursor, a metal selenide precursor, and a chalcogenide ligand

17 December, 2014 - 03:54

Chem. Commun., 2015, 51,899-902
DOI: 10.1039/C4CC07438F, CommunicationDonghyeuk Choi, Seungyeol Lee, Junho Lee, Kyung-Sang Cho, Sang-Wook Kim
A new application area using a very simple alkali metal chalcogenide, disodium diselenide (Na2Se2), has been developed.
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