Chem. Commun.

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Efficient passivated phthalocyanine-quantum dot solar cells

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1732-1735
DOI: 10.1039/C4CC08104H, CommunicationVicente M. Blas-Ferrando, Javier Ortiz, Victoria Gonzalez-Pedro, Rafael S. Sanchez, Ivan Mora-Sero, Fernando Fernandez-Lazaro, Angela Sastre-Santos
The power conversion efficiency of CdSe and CdS quantum dot sensitized solar cells is enhanced up to 45% for CdSe and 104% for CdS by passivation with an asymmetrically disulfide substituted phthalocyanine.
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Enhancing catalytic activity and stability for CO2 methanation on Ni@MOF-5 via control of active species dispersion

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1728-1731
DOI: 10.1039/C4CC08733J, CommunicationWenlong Zhen, Bo Li, Gongxuan Lu, Jiantai Ma
A novel high active catalyst Ni@MOF-5 showed unexpected higher activity under the low temperature for CO2 methanation. The characterization results indicated that Ni was in highly dispersed uniform state over MOF-5. This catalyst performed high stability and showed almost no deactivation in long term stability tests up to 100 h.
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A new chromo-fluorogenic probe based on BODIPY for NO2 detection in air

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1725-1727
DOI: 10.1039/C4CC08654F, CommunicationL. Alberto Juarez, Ana M. Costero, Margarita Parra, Salvador Gil, Felix Sancenon, Ramon Martinez-Manez
A new fluorescent chemodosimeter for detecting NO2 has been synthesized. The sensing mechanism is based on the regeneration of the carbonyl group induced by the target molecule. This reaction gives rise to both colorimetric and fluorescent changes. A LOD of 0.1 ppm has been determined.
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Degeneracy in cryptophane-xenon complex formation in aqueous solution

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1721-1724
DOI: 10.1039/C4CC08601E, CommunicationSergey Korchak, Wolfgang Kilian, Lorenz Mitschang
Degenerate exchange prevails in the cryptophane-A-xenon host-guest system in aqueous solution.
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A new method to prevent degradation of lithium-oxygen batteries: reduction of superoxide by viologen

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1705-1708
DOI: 10.1039/C4CC09208B, CommunicationL. Yang, J. T. Frith, N. Garcia-Araez, J. R. Owen
The catalysis of the reduction of oxygen by ethyl viologen overcomes some of the greatest problems of the lithium-oxygen battery.
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Facile one-pot synthesis of MoS2 quantum dots-graphene-TiO2 composites for highly enhanced photocatalytic properties

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1709-1712
DOI: 10.1039/C4CC08984G, CommunicationWeiyin Gao, Minqiang Wang, Chenxin Ran, Le Li
We reported a simple one-pot solvothermal approach to fabricate MoS2 quantum dots (QDs)-graphene-TiO2 (MGT) composite photocatalyst with significant improved photocatalysis property, which is caused by the increased charge separation, visible-light absorbance, specific surface area and reaction sites upon the introduction of MoS2 QDs.
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Asymmetric core-expanded aza-BODIPY analogues: facile synthesis and optical properties

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1713-1716
DOI: 10.1039/C4CC06704E, CommunicationHui Liu, Hua Lu, Zhikuan Zhou, Soji Shimizu, Zhifang Li, Nagao Kobayashi, Zhen Shen
A novel series of asymmetric core-expanded aza-BODIPY analogues, synthesized through a facile and scalable two-step reaction in high yields, are reported.
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Aligned macroporous monoliths with intrinsic microporosity via a frozen-solvent-templating approach

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1717-1720
DOI: 10.1039/C4CC08919G, CommunicationAdham Ahmed, Tom Hasell, Rob Clowes, Peter Myers, Andrew I. Cooper, Haifei Zhang
Aligned macroporous monoliths of an organic cage, a polymer of intrinsic microporosity (PIM-1), and a metal-organic framework (HKUST-1) are prepared by a controlled freezing approach. In addition to macropores, all the monoliths contain the intrinsic micropores.
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Linear assembly of a porphyrin-C60 complex confined in vertical nanocylinders of amphiphilic block copolymer films

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1685-1688
DOI: 10.1039/C4CC09262G, CommunicationTakuya Kamimura, Motonori Komura, Hideaki Komiyama, Tomokazu Iyoda, Fumito Tani
Linear assemblies of a 1 : 1 porphyrin-fullerene C60 complex were formed in vertical cylindrical polyether nanodomains of amphiphilic block copolymer films.
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Thiophene-fused bowl-shaped polycyclic aromatics with a dibenzo[a,g]corannulene core for organic field-effect transistors

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1681-1684
DOI: 10.1039/C4CC08451A, CommunicationRu-Qiang Lu, Yi-Nyu Zhou, Xiao-Yun Yan, Ke Shi, Yu-Qing Zheng, Ming Luo, Xin-Chang Wang, Jian Pei, Haiping Xia, Laura Zoppi, Kim K. Baldridge, Jay S. Siegel, Xiao-Yu Cao
Electron-rich thiophene units were fused into the skeleton of corannulene to extend [small pi]-surfaces and tune arrangement in a single crystal.
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Smart design of free-standing ultrathin Co-Co(OH)2 composite nanoflakes on 3D nickel foam for high-performance electrochemical capacitors

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1689-1692
DOI: 10.1039/C4CC07499H, CommunicationZheyin Yu, Zhenxiang Cheng, Siti Rohana Majid, Zhixin Tai, Xiaolin Wang, Shixue Dou
Free-standing Co-Co(OH)2 composite nanoflakes with excellent electrical conductivity and mechanical properties were applied in electrochemical capacitors for the first time.
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Compartment fabrication of magneto-responsive Janus microrod particles

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1639-1642
DOI: 10.1039/C4CC07863B, CommunicationSu Yeon Lee, Shu Yang
Monodispersed magneto-responsive microrod particles of variable magnetic/non-magnetic ratios and chemical compositions are created by compartment fabrication in a single poly(dimethylsiloxane) (PDMS) mold.
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A polycation-induced secondary assembly of amphiphilic calixarene and its multi-stimuli responsive gelation behavior

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1647-1649
DOI: 10.1039/C4CC08721F, CommunicationKun-Peng Wang, Yong Chen, Yu Liu
A calixarene-based supramolecular hydrogel with reversible or irreversible gelation behaviors in response to external stimuli constructed via a hierarchical induced assembly strategy.
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A versatile efficient one-step approach for carbazole-pyridine hybrid molecules: highly efficient host materials for blue phosphorescent OLEDs

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1650-1653
DOI: 10.1039/C4CC08335K, CommunicationChao Tang, Ran Bi, Youtian Tao, Fangfang Wang, Xudong Cao, Shifan Wang, Tao Jiang, Cheng Zhong, Hongmei Zhang, Wei Huang
A series of carbazole-pyridine hybrid hosts were prepared by a convenient catalyst free C-N coupling reaction for high-efficiency blue electrophosphorescence.
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Coupling of carboxylic acids with internal alkynes by supported ruthenium catalysts: direct and selective syntheses of multi-substituted phthalide derivatives

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1654-1657
DOI: 10.1039/C4CC08461F, CommunicationHiroki Miura, Kentaro Tsutsui, Kenji Wada, Tetsuya Shishido
Supported ruthenium catalysts promote coupling of various kinds of aromatic carboxylic acids with internal alkynes, giving the corresponding multi-substituted phthalide derivatives in high yields. The supported Ru catalyst can be recycled at least five times with no loss of activity.
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Substrate selective amide coupling driven by encapsulation of a coupling agent within a self-assembled hexameric capsule

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1658-1661
DOI: 10.1039/C4CC08833F, CommunicationSonia Giust, Giorgio La Sorella, Laura Sperni, Giorgio Strukul, Alessandro Scarso
Encapsulation of a cationic carbodiimide condensing agent within a self-assembled hexameric capsule made of resorcin[4]arene units provides a nano-environment that efficiently steers the substrate selectivity in the amide synthesis reaction between carboxylic acids and primary amines.
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Cellular activity of siRNA oligonucleotides containing synthetic isomorphic nucleoside surrogates

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1662-1665
DOI: 10.1039/C4CC08809C, CommunicationDongwon Shin, Peter Lonn, Steven F. Dowdy, Yitzhak Tor
Singly and multiply modified synthetic siRNA oligonucleotides, containing highly isomorphic surrogate nucleobases, show high interference activity in cell culture.
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One-by-one single-molecule detection of mutated nucleobases by monitoring tunneling current using a DNA tip

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1666-1669
DOI: 10.1039/C4CC08227C, CommunicationPhuc Tan Bui, Tomoaki Nishino, Hiroshi Shiigi, Tsutomu Nagaoka
Simple stationary monitoring of the tunneling current using a DNA tip leads to single-molecule DNA detection and discovery of base mismatches and methylation.
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Catalytic hydrogen production from paraformaldehyde and water using an organoiridium complex

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1670-1672
DOI: 10.1039/C4CC06581F, CommunicationTomoyoshi Suenobu, Yusuke Isaka, Satoshi Shibata, Shunichi Fukuzumi
A water-soluble iridium(III)-hydroxo complex catalyses the production of H2 from paraformaldehyde in water under basic conditions at 298 K.
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A luminescent metal-organic framework constructed using a tetraphenylethene-based ligand for sensing volatile organic compounds

18 January, 2015 - 12:54

Chem. Commun., 2015, 51,1677-1680
DOI: 10.1039/C4CC08945F, CommunicationXun-Gao Liu, Hui Wang, Bin Chen, Yang Zou, Zhi-Guo Gu, Zujin Zhao, Liang Shen
A tetraphenylethene-based porous metal-organic framework with 1D rhombus channels and strong fluorescence is prepared and applied to detect volatile organic compounds.
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