Chem. Commun.

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Mechanochemical lithiation of layered polysilane

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9761-9764
DOI: 10.1039/C4CC03850A, CommunicationMasataka Ohashi, Hideyuki Nakano, Tetsuya Morishita, Michelle J. S. Spencer, Yuka Ikemoto, Chihiro Yogi, Toshiaki Ohta
Lithiated polysilane was synthesized by the mechanochemical reaction of layered polysilane with metallic lithium. The resulting dark green powder formed a Si-Li bond on the surface and demonstrated electroconductivity.
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A non-aqueous procedure to synthesize amino group bearing nanostructured organic-inorganic hybrid materials

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9753-9756
DOI: 10.1039/C4CC03640A, CommunicationM. Goring, A. Seifert, K. Schreiter, P. Muller, S. Spange
Amino group functionalized organic-inorganic hybrid materials are available in almost quantitative yields by a non-aqueous procedure using 2,2[prime or minute]-spirobi[4H-1,3,2-benzodioxazoiline] and 3-amino-functionalized n-propyl-2-methyl-4H-1,3,2-benzodioxazoilines.
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An efficient ruthenium(IV) catalyst for the selective hydration of nitriles to amides in water under mild conditions

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9661-9664
DOI: 10.1039/C4CC04058A, CommunicationEder Tomas-Mendivil, Francisco J. Suarez, Josefina Diez, Victorio Cadierno
A ruthenium catalyst able to promote the selective conversion of nitriles to amides in water, at low metal loadings and under mild conditions, is presented.
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Fluorescent supramolecular metal assemblies as 'no quenching' probes for detection of threonine in the nanomolar range

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9725-9728
DOI: 10.1039/C4CC03877K, CommunicationSharanjeet Kaur, Vandana Bhalla, Manoj Kumar
A highly sensitive detection of threonine is realized using a supramolecular ensemble of aggregates of hetero-oligophenylene derivative 3 and Zn2+ ions. On the basis of fluorogenic response of aggregates of 3 toward Zn2+ ions and threonine, we have constructed a 2-input, 3-output sequential logic circuit at the molecular level.
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CH3NH3PbI(3-x)(BF4)x: molecular ion substituted hybrid perovskite

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9741-9744
DOI: 10.1039/C4CC04537H, CommunicationSatyawan Nagane, Umesh Bansode, Onkar Game, Shraddha Chhatre, Satishchandra Ogale
The hybrid perovskite CH3NH3PbI(3-x)(BF4)x shows one order of magnitude enhancement in the low frequency electrical conductivity as compared to the conventional perovskite (CH3NH3PbI3). When employed in a photo-sensor device architecture it shows over four orders of magnitude photosensitivity under AM1.5 irradiation.
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Ultrasensitive aptamer-based SERS detection of PSAs by heterogeneous satellite nanoassemblies

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9737-9740
DOI: 10.1039/C4CC03734K, CommunicationWei Ma, Honghong Yin, Liguang Xu, Xiaoling Wu, Hua Kuang, Libing Wang, Chuanlai Xu
Plasmonic heterogeneous core-satellite assemblies possess a strong SERS effect and are built for PSA detection with a LOD of 4.8 aM.
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Lewis base mediated halogenation/semipinacol rearrangement of diazo compounds: new access to [small alpha]-halo-quaternary ketones

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9773-9775
DOI: 10.1039/C4CC04154B, CommunicationHaibin Mao, Zhongkai Tang, Hongwen Hu, Yixiang Cheng, Wen-Hua Zheng, Chengjian Zhu
A novel halogenation/semipinacol rearrangement of [small alpha]-diazo alcohol catalyzed by Lewis base has been developed through a carbene-free mechanism.
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Enoyl acyl carrier protein reductase (FabI) catalyzed asymmetric reduction of the C[double bond, length as m-dash]C double bond of [small alpha],[small beta]-unsaturated ketones: preparation of (R)-2-alkyl-cyclopentanones

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9729-9732
DOI: 10.1039/C4CC04150J, CommunicationJi Liu, Jinchuan Wu, Zhi Li
Enoyl-ACP reductase (FabI), a non-OYE type of 'ene'-reductase, catalyzed the asymmetric reduction of several 2-alkylidenecyclopentanones giving (R)-2-alkylcyclopentanones in high ee.
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An activatable, polarity dependent, dual-luminescent imaging agent with a long luminescence lifetime

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9733-9736
DOI: 10.1039/C4CC04015E, CommunicationMarcus T. M. Rood, Maria Oikonomou, Tessa Buckle, Marcel Raspe, Yasuteru Urano, Kees Jalink, Aldrik H. Velders, Fijs W. B. van Leeuwen
A combination of two quenching interactions was incorporated in a new activatable imaging agent. Partial and total activation of luminescence can be achieved, as well as luminescence lifetime imaging.
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Sensitive detection of microRNA by chronocoulometry and rolling circle amplification on a gold electrode

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9704-9706
DOI: 10.1039/C4CC03330B, CommunicationBo Yao, Yichen Liu, Miyuki Tabata, Huangtianzhi Zhu, Yuji Miyahara
An integrated gold electrode fabricated on a polystyrene substrate was developed for quantitative detection of nucleic acids by rolling circle amplification and chronocoulometry.
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"Suspended" Pt nanoparticles over TiO2 nanotubes for enhanced photocatalytic H2 evolution

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9653-9656
DOI: 10.1039/C4CC04087B, CommunicationNhat Truong Nguyen, JeongEun Yoo, Marco Altomare, Patrik Schmuki
In the present work we introduce a technique to form a photocatalyst based on minimal amounts of Pt nanoparticles suspended over the mouth of anodic TiO2 nanotubes.
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Phase transfer and dispersion of reduced graphene oxide nanosheets using cluster suprasurfactants

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9700-9703
DOI: 10.1039/C4CC04091K, CommunicationShan Wang, Haolong Li, Liying Zhang, Bao Li, Xiao Cao, Guohua Zhang, Shilin Zhang, Lixin Wu
Surfactant-encapsulated polyoxometalates (SEP) can act as cluster suprasurfactants to transfer reduced graphene oxide (RGO) from water to low polar organic solvents with single-layer RGO dispersion.
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Transparent conducting p-type thin films of c-axis self-oriented Bi2Sr2Co2Oy with high figure of merit

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9697-9699
DOI: 10.1039/C4CC03800B, CommunicationRenhuai Wei, Xianwu Tang, Ling Hu, Zhenzhen Hui, Jie Yang, Hongmei Luo, Xuan Luo, Jianming Dai, Wenhai Song, Zhaorong Yang, Xuebin Zhu, Yuping Sun
Transparent conducting p-type Bi2Sr2Co2Oy thin films show c-axis self-orientation with high figure of merit by a solution method.
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Biodegradable large compound vesicles with controlled size prepared via the self-assembly of branched polymers in nanodroplet templates

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9676-9678
DOI: 10.1039/C4CC02836H, CommunicationLong-Hai Wang, Xiao-Man Xu, Chun-Yan Hong, De-Cheng Wu, Zhi-Qiang Yu, Ye-Zi You
Generally, it is very difficult to control the size of large compound vesicles.
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Sterics level the rates of proton transfer to [Ni(XPh){PhP(CH2CH2PPh2)2}]+ (X = O, S or Se)

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9669-9671
DOI: 10.1039/C4CC04197F, CommunicationAhmed Alwaaly, Richard A. Henderson
Rates of proton transfers between lutidinium and [Ni(XPh)(PhP{CH2CH2PPh2}2)]+ (X = O, S or Se) show little variation because of sterics.
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Platinum nanoparticles supported on Ca(Mg)-zeolites for efficient room-temperature alcohol oxidation under aqueous conditions

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9679-9682
DOI: 10.1039/C4CC02685C, CommunicationYejiang Hong, Xiaoqing Yan, Xiaofeng Liao, Renhong Li, Shaodan Xu, Liping Xiao, Jie Fan
Platinum nanoparticles supported on Ca(Mg)-ZSM-5 is an efficient, highly selective and stable catalyst for room-temperature oxidation of alcohols in water.
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Plasmonic properties of triangle-shaped silver trimers selectively fabricated by near-field photo-reduction using an apertured cantilever for an atomic force microscope

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9693-9696
DOI: 10.1039/C4CC04230A, CommunicationYasutaka Kitahama, Takuya Ikemachi, Toshiaki Suzuki, Takeshi Miura, Yukihiro Ozaki
An L- or a V-shaped Ag trimer was selectively fabricated through near-field photo-reduction and observed in situ using an apertured cantilever for AFM.
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Diastereoselective synthesis of novel aza-diketopiperazines via a domino cyclohydrocarbonylation/addition process

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9657-9660
DOI: 10.1039/C4CC03660C, CommunicationPierre Regenass, Jean-Francois Margathe, Andre Mann, Jean Suffert, Marcel Hibert, Nicolas Girard, Dominique Bonnet
A short and diastereoselective synthesis of newly reported aza-diketopiperazine (aza-DKP) scaffolds starting from amino-acids was achieved using domino Rh(I)-catalyzed cyclohydrocarbonylation/addition.
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Stereoselective construction of a key hydroindole precursor of epidithiodiketopiperazine (ETP) natural products

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9690-9692
DOI: 10.1039/C4CC04148H, CommunicationMinghao Feng, Xuefeng Jiang
The functionalized hexahydroindole scaffold of ETPs was constructed by an asymmetric strategy involving a diastereoselective inverse electron-demand Diels-Alder (IEDDA) reaction.
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Rhodium-catalyzed direct synthesis of unprotected NH-sulfoximines from sulfoxides

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9687-9689
DOI: 10.1039/C4CC04349A, CommunicationJinmin Miao, Nigel G. J. Richards, Haibo Ge
A novel rhodium-catalyzed imination of sulfoxides using O-(2,4-dinitrophenyl)hydroxylamine is developed under mild conditions with good functional group tolerance.
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