Chem. Commun.

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High solid-state fluorescence in ring-shaped AEE-active tetraphenylsilole derivatives

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12714-12717
DOI: 10.1039/C4CC06203E, CommunicationYuanjing Cai, Kerim Samedov, Haley Albright, Brian S. Dolinar, Ilia A. Guzei, Rongrong Hu, Chaocan Zhang, Ben Zhong Tang, Robert West
Simple ring-shaped tetraphenylsilole derivatives with high solid-state fluorescence.
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Residual metallic impurities within carbon nanotubes play a dominant role in supposedly "metal-free" oxygen reduction reactions

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12662-12664
DOI: 10.1039/C4CC03271C, CommunicationLu Wang, Martin Pumera
ORR electrocatalysis on the supposedly metal-free carbon nanotubes is in fact due to the presence of residual metallic impurities within.
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Size-dependent patterned recognition and extraction of metal ions by a macrocyclic aromatic pyridone pentamer

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12730-12733
DOI: 10.1039/C4CC05197A, CommunicationJie Shen, Wenliang Ma, Lin Yu, Jin-Bo Li, Hu-Chun Tao, Kun Zhang, Huaqiang Zeng
A macrocyclic aromatic pyridine pentamer was found to exhibit patterned recognition of metal ions and efficiently extract larger ions, such as Cs+, Ba2+, Tl+, Au+, K+ and Rb+ preferentially over the other 18 smaller metal ions from the aqueous phase into the chloroform layer.
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Alkaline earth catalysis for the 100% atom-efficient three component assembly of imidazolidin-2-ones

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12676-12679
DOI: 10.1039/C4CC05223D, CommunicationMerle Arrowsmith, William M. S. Shepherd, Michael S. Hill, Gabriele Kociok-Kohn
A variety of functionalised imidazolidin-2-ones may be synthesised under very mild reaction conditions using non-toxic and cost-effective alkaline earth bis(amide) pre-catalysts in a 100% atom-efficient, intermolecular one-pot assembly from inexpensive alkyne and cumulene reagents.
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Spiranic BODIPYs: a ground-breaking design to improve the energy transfer in molecular cassettes

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12765-12767
DOI: 10.1039/C4CC05709K, CommunicationEsther M. Sanchez-Carnerero, Leire Gartzia-Rivero, Florencio Moreno, Beatriz L. Maroto, Antonia R. Agarrabeitia, Maria J. Ortiz, Jorge Banuelos, Inigo Lopez-Arbeloa, Santiago de la Moya
From a flexible cassette it is possible to boost the EET by a simple spiranic design.
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Polydimethylsiloxane coated glass frits for low-cost and reusable water-organic solvent separation

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12656-12658
DOI: 10.1039/C4CC05663A, CommunicationRavi Raninga, Kristopher Page, Ivan P. Parkin
A technique for functionalizing glass frits is described for use in separating water and organic solvents.
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Highly unusual interpenetration isomers of electroactive nickel bis(dithiolene) coordination frameworks

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12772-12774
DOI: 10.1039/C4CC05438E, CommunicationThomas B. Faust, Pavel M. Usov, Deanna M. D'Alessandro, Cameron J. Kepert
Two highly unusual isomeric coordination frameworks incorporating the nickel bis(dithiolate) metalloligand exhibit cyclable electroactive properties.
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Distance dependent charge separation and recombination in semiconductor/molecular catalyst systems for water splitting

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12768-12771
DOI: 10.1039/C4CC05143B, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Anna Reynal, Janina Willkomm, Nicoleta M. Muresan, Fezile Lakadamyali, Miquel Planells, Erwin Reisner, James R. Durrant
The molecular structure of the catalyst strongly influences the kinetics of charge separation and recombination.
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Synthesis of nitrogen-containing fused-polycyclic compounds from tyramine derivatives using phenol dearomatization and cascade cyclization

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12775-12778
DOI: 10.1039/C4CC04809A, CommunicationTakuya Yokosaka, Tetsuhiro Nemoto, Hiroki Nakayama, Naoki Shiga, Yasumasa Hamada
We developed a novel method of synthesizing fused-heterocycles from tyramine derivatives using the phenol dearomatization-cascade cyclization strategy.
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[GaF3(BzMe2-tacn)] - a neutral 'metalloligand' towards alkali metal and ammonium cations in water

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12673-12675
DOI: 10.1039/C4CC05603E, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Rajiv Bhalla, William Levason, Sajinder K. Luthra, Graeme McRobbie, Gillian Reid, George Sanderson, Wenjian Zhang
This neutral complex is an effective 'metalloligand' towards alkali metal cations in water, capable of forming unusual supramolecular assemblies.
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Vesicular aptasensor for the detection of thrombin

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12665-12668
DOI: 10.1039/C4CC05221H, CommunicationAndreas Muller, Burkhard Konig
Self-assembled phospholipid vesicles are functionalized with thrombin-binding aptamers using a thiol-click reaction.
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Ionophore-based ion-exchange emulsions as novel class of complexometric titration reagents

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12659-12661
DOI: 10.1039/C4CC05754F, CommunicationJingying Zhai, Xiaojiang Xie, Eric Bakker
Complexometric titrations rely on a drastic change of the pM value at the equivalence point with a water soluble chelator forming typically 1 : 1 complexes of high stability.
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Consecutive oxygen-based oxidations convert amines to [small alpha]-cyanoepoxides

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12649-12651
DOI: 10.1039/C4CC04932B, CommunicationDmitry B. Ushakov, Kerry Gilmore, Peter H. Seeberger
Tri- or tetrasubstituted [small alpha]-cyanoepoxides can be rapidly prepared from unactivated amines and malononitrile or methyl cyanoacetate when singlet oxygen, produced in a continuous-flow photoreactor, serves as an oxidant and in situ peroxide source.
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Non-covalent sp3 carbon bonding with ArCF3 is analogous to CH-[small pi] interactions

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12626-12629
DOI: 10.1039/C4CC05602G, CommunicationAntonio Bauza, Tiddo J. Mooibroek, Antonio Frontera
A combined CSD and ab initio study reveals that the interaction between the sp3 C-atom in para-substituted ArCF3 and electron rich atoms is weak (<5 kcal mol-1), somewhat directional, and thus comparable to CH-[small pi] interactions.
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Bicontinuous mesoporous carbon thin films via an order-order transition

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12684-12687
DOI: 10.1039/C4CC02471K, CommunicationGuodong Deng, Yuanzhong Zhang, Changhuai Ye, Zhe Qiang, Gila E. Stein, Kevin A. Cavicchi, Bryan D. Vogt
Fabrication of mesoporous carbon films with gyroid morphology using soft templating with resol is sensitive to exact details of solvent processing, thermal annealing and the age of the resol.
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Electrocatalytic CO2 reduction with a membrane supported manganese catalyst in aqueous solution

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12698-12701
DOI: 10.1039/C4CC06404F, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.James J. Walsh, Gaia Neri, Charlotte L. Smith, Alexander J. Cowan
[Mn(bpy)(CO)3Br]/MWCNT/Nafion membranes are active heterogeneous electrocatalysts for CO2 reduction to CO in aqueous electrolyte at relatively low overpotentials.
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Copper-catalyzed phosphorylation of sp2 C-H bonds

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12718-12721
DOI: 10.1039/C4CC06246A, CommunicationShan Wang, Rui Guo, Gao Wang, Shan-Yong Chen, Xiao-Qi Yu
A method for direct the auxiliary-assisted intermolecular C-H phosphorylation of non-acidic benzamide [small beta]-C-H bonds has been developed. This reaction is catalyzed by Cu(OAc)2 under mild temperature conditions. The method shows high functional group compatibility and selectively gives mono-substituted products.
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Phase-dependent photocatalytic H2 evolution of copper zinc tin sulfide under visible light

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12726-12729
DOI: 10.1039/C4CC05654J, CommunicationZhi-Xian Chang, Wen-Hui Zhou, Dong-Xing Kou, Zheng-Ji Zhou, Si-Xin Wu
Wurtzite CZTS was firstly synthesized via a facile one-pot method. By using a simple thermal process, mixed wurtzite-kesterite and pure kesterite CZTS were obtained. CZTS has been found to exhibit phase-dependent photocatalytic H2 evolution under visible light.
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Facile assembly of light-driven molecular motors onto a solid surface

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12641-12644
DOI: 10.1039/C4CC04440A, CommunicationJiawen Chen, Kuang-Yen Chen, Gregory T. Carroll, Ben L. Feringa
In contrast to an earlier bipodal molecular motor, the tetravalent motor showed no significant reduction in the rotation speed when attached to a surface.
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Photo-controlled deactivation of immobilised lipase

29 September, 2014 - 08:17

Chem. Commun., 2014, 50,12645-12648
DOI: 10.1039/C4CC06087C, CommunicationClaudia Poloni, Wiktor Szymanski, Ben L. Feringa
Immobilization of lipase on a quartz surface using a photoswitchable linker permits to control the deactivation of the enzyme by irradiation with light.
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