Chem. Commun.

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Indium triflate-catalyzed stereoselective tandem intramolecular conjugate addition of secondary amines to [small alpha],[small beta]-bisenones

25 February, 2015 - 22:17

Chem. Commun., 2015, 51,4216-4219
DOI: 10.1039/C4CC10016F, CommunicationBodakuntla Thirupathaiah, SungYong Seo
We report an indium triflate-catalyzed stereoselective intramolecular tandem conjugate addition of secondary amines to [small alpha],[small beta]-bisenones to afford a 1,2,3-trisubstituted six-membered ring bearing diketone substituents in good to excellent yields at room temperature.
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Ditopic CMPO-pillar[5]arenes as unique receptors for efficient separation of americium(III) and europium(III)

25 February, 2015 - 22:17

Chem. Commun., 2015, 51,4263-4266
DOI: 10.1039/C4CC09248A, CommunicationYuyu Fang, Xiangyang Yuan, Lei Wu, Zhiyong Peng, Wen Feng, Ning Liu, Dingguo Xu, Shoujian Li, Arijit Sengupta, Prasanta K. Mohapatra, Lihua Yuan
A unique host-guest recognition process involving a new class of homoditopic CMPO-pillar[5]arenes and lanthanides was revealed to proceed in a stepwise manner, and correlated to the efficient and selective separation of americium(III) from europium(III) under acidic feed conditions.
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Mixed-matrix membranes containing functionalized porous metal-organic polyhedrons for the effective separation of CO2-CH4 mixture

25 February, 2015 - 22:17

Chem. Commun., 2015, 51,4249-4251
DOI: 10.1039/C5CC00384A, CommunicationJing Ma, Yunpan Ying, Qingyuan Yang, Yujie Ban, Hongliang Huang, Xiangyu Guo, Yuanlong Xiao, Dahuan Liu, Yanshuo Li, Weishen Yang, Chongli Zhong
The gas permeability and separation factor for CO2-CH4 separation were improved simultaneously in mixed-matrix membranes formed by metal-organic polyhedrons and polysulfone.
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Label-free signal-on ATP aptasensor based on the remarkable quenching of tris(2,2[prime or minute]-bipyridine)ruthenium(II) electrochemiluminescence by single-walled carbon nanohorn

25 February, 2015 - 22:17

Chem. Commun., 2015, 51,4256-4258
DOI: 10.1039/C5CC00037H, CommunicationZhongyuan Liu, Wei Zhang, Wenjing Qi, Wenyue Gao, Saima Hanif, Muhammad Saqib, Guobao Xu
The quenching of electrochemiluminescence by SWCNH has been reported for the first time. It enables the development of a sensitive, label-free, and signal-on ATP aptasensor using SWCNH as both quencher and scaffold.
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Shape and size directed self-selection in organic cage formation

25 February, 2015 - 22:17

Chem. Commun., 2015, 51,4241-4244
DOI: 10.1039/C5CC00075K, CommunicationKoushik Acharyya, Partha Sarathi Mukherjee
[3+2] self-assembly of an unsymmetrical aldehyde and a flexible amine yielded a single isomeric cage out of two possible isomeric cages. The experimental and theoretical findings suggest that the geometric features of the aldehyde play a key role in such self-selection.
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Microwave vs. solvothermal synthesis of hollow cobalt sulfide nanoprisms for electrocatalytic hydrogen evolution and supercapacitors

25 February, 2015 - 22:17

Chem. Commun., 2015, 51,4252-4255
DOI: 10.1039/C4CC09849H, CommunicationBo You, Nan Jiang, Meili Sheng, Yujie Sun
Hollow cobalt sulfide nanoprisms obtained by a two-step, microwave-assisted synthesis within 15 min exhibit higher hydrogen evolution catalytic activity and better specific capacitance than its counterpart prepared by a traditional solvothermal method.
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Complete structure and cation orientation in the perovskite photovoltaic methylammonium lead iodide between 100 and 352 K

25 February, 2015 - 22:17

Chem. Commun., 2015, 51,4180-4183
DOI: 10.1039/C4CC09944C, CommunicationMark T. Weller, Oliver J. Weber, Paul F. Henry, Antonietta M. Di Pumpo, Thomas C. Hansen
Neutron diffraction shows the methylammonium cation in the photovoltaic [CH3NH3]PbI3 demonstrates increasing positional disorder on heating from 100 K to 352 K.
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pH and light-controlled self-assembly of bistable [c2] daisy chain rotaxanes

25 February, 2015 - 22:17

Chem. Commun., 2015, 51,4212-4215
DOI: 10.1039/C4CC10331A, CommunicationAdrian Wolf, Emilie Moulin, Juan-Jose Cid, Antoine Goujon, Guangyan Du, Eric Busseron, Gad Fuks, Nicolas Giuseppone
Triarylamine - [c2] daisy chain rotaxane conjugates behave as logic-gates controlled by pH and light modulations to self-assemble in supramolecular fibers.
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Catalytic nucleic acids (DNAzymes) as functional units for logic gates and computing circuits: from basic principles to practical applications

25 February, 2015 - 22:17

Chem. Commun., 2015, 51,4144-4160
DOI: 10.1039/C4CC09874A, Feature ArticleRon Orbach, Bilha Willner, Itamar Willner
Catalytic nucleic acids (DNAzymes) provide functional modules for logic gates and computing operations, and hold great promise for biomedical sensing and therapeutic applications.
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Time-resolved luminescent biosensing based on inorganic lanthanide-doped nanoprobes

25 February, 2015 - 22:17

Chem. Commun., 2015, 51,4129-4143
DOI: 10.1039/C4CC10432C, Feature ArticleWei Zheng, Datao Tu, Ping Huang, Shanyong Zhou, Zhuo Chen, Xueyuan Chen
In this feature article, we review the latest advancements in lanthanide-doped luminescent nanocrystals as time-resolved luminescent nano-bioprobes, from their fundamental optical properties to their potential applications for ultrasensitive biodetection and high-resolution bioimaging.
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Smart, reusable labels for assessing self-cleaning films

25 February, 2015 - 22:17

Chem. Commun., 2015, 51,4161-4163
DOI: 10.1039/C4CC09734C, CommunicationA. Mills, N. Wells
Novel, reusable photocatalyst activity indicator label undergoes a rapid colour change when placed in contact with a photocatalytic film via the photoreduction of methylene blue contained within the label's adhesive, and is ideal for assessing photocatalytic activity in situ and in laboratory work.
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Transition-metal-free persulfuration to construct unsymmetrical disulfides and mechanistic study of the sulfur redox process

25 February, 2015 - 22:17

Chem. Commun., 2015, 51,4208-4211
DOI: 10.1039/C4CC09633A, CommunicationXiao Xiao, Minghao Feng, Xuefeng Jiang
A sulfur redox process has been developed between sulfinate and thiosulfate, which efficiently affords diverse unsymmetrical disulfides and provides a new method to modify pharmaceuticals and natural products with this biologically active moiety without extra oxidant or reductant.
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Sonication-assisted alcoholysis of boron nitride nanotubes for their sidewalls chemical peeling

23 February, 2015 - 21:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C5CC00388A, CommunicationDukeun Kim, Sayuka Nakajima, Toshiki Sawada, Mahiro Iwasaki, Susumu Kawauchi, Chunyi Zhi, Yoshio Bando, Dmitri Golberg, Takeshi Serizawa
We demonstrated that sonication treatment of boron nitride nanotubes (BNNTs) in primary alcohols had led to chemical peeling of their sidewalls through alcoholysis, followed by production of boron nitride nanoribbons (BNNRs).
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The template-assisted synthesis of polypyrrole hollow microspheres with a double-shelled structure

23 February, 2015 - 21:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC10445E, CommunicationChunyu Niu, Bingfang Zou, Yongqiang Wang, Lin Chen, Haihong Zheng, Shaomin Zhou
Double-shelled polypyrrole hollow microspheres were synthesized via a novel template-assisted concept, using iron oxide hollow microspheres as both the sacrificial template and initiator in acidic solution.
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Extended supramolecular organization of [small pi]-systems using yet unexplored simultaneous intra- and inter-molecular H-bonding motifs of 1,3-dihydroxy derivatives

23 February, 2015 - 21:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC10335A, CommunicationTathagata Mondal, Dipankar Basak, Abdelaziz Al Ouahabi, Marc Schmutz, Philippe Mesini, Suhrit Ghosh
Simultaneous intra- and inter-molecular H-bonding among 1,3-dihydroxyl derivatives with acceptor chromophores leads to fibrillar gelation facilitating [small pi]-stacking and specific donor intercalation.
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Functionalizing with glycopeptide dendrimers significantly enhances the hydrophilicity of the magnetic nanoparticles

23 February, 2015 - 21:54

Chem. Commun., 2015, 51,4093-4096
DOI: 10.1039/C5CC00187K, CommunicationJinan Li, Fangjun Wang, Jing Liu, Zhichao Xiong, Guang Huang, Hao Wan, Zheyi Liu, Kai Cheng, Hanfa Zou
A novel hybrid magnetic nanoparticle coated with glycopeptide dendrimers was synthesized and utilized for highly efficient N-glycopeptide enrichment.
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Oxidative Heck desymmetrisation of 2,2-disubstituted cyclopentene-1,3-diones

23 February, 2015 - 21:54

Chem. Commun., 2015, 51,4089-4092
DOI: 10.1039/C5CC00407A, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.S. E. Walker, C. J. C. Lamb, N. A. Beattie, P. Nikodemiak, A.-L. Lee
Oxidative Heck couplings have been successfully developed for 2,2-disubstituted cyclopentene-1,3-diones. The direct coupling onto the 2,2-disubstituted cyclopentene-1,3-dione core provides a novel, expedient and useful way of desymmetrising all-carbon quaternary centres.
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The sequential continuous-flow hydrothermal synthesis of molybdenum disulphide

23 February, 2015 - 21:54

Chem. Commun., 2015, 51,4048-4050
DOI: 10.1039/C4CC10158H, CommunicationPeter W. Dunne, Alexis S. Munn, Chris L. Starkey, Edward H. Lester
MoS2 has been prepared by the sequential formation of thiomolybdates, conversion to MoS3 and decomposition to MoS2 in a continuous-flow hydrothermal process.
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Mechanism of water oxidation by [Ru(bda)(L)2]: the return of the "blue dimer"

23 February, 2015 - 21:54

Chem. Commun., 2015, 51,4105-4108
DOI: 10.1039/C4CC07968J, CommunicationJavier J. Concepcion, Diane K. Zhong, David J. Szalda, James T. Muckerman, Etsuko Fujita
The active form of the water oxidation catalysts [Ru(bda)L2] (bda is 2,2[prime or minute]-bipyridine-4,4[prime or minute]-dicarboxylic acid; L is 4-picoline or isoquinoline) is an oxo-bridged, blue-dimer-like intermediate generated bimolecularly from two [RuIV-OH]+ monomers.
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Strain-controlled fluorescence polarization in a CdSe nanoplatelet-block copolymer composite

23 February, 2015 - 21:54

Chem. Commun., 2015, 51,4051-4054
DOI: 10.1039/C4CC07617F, CommunicationE. Beaudoin, B. Abecassis, D. Constantin, J. Degrouard, P. Davidson
Composite materials obtained by doping a SBS thermoplastic elastomer matrix with CdSe nanoplatelets show reversible platelets alignment upon stretching.
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