Chem. Commun.

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A supramolecular Co(II)14-metal-organic cube in a hydrogen-bonded network and a Co(II)-organic framework with a flexible methoxy substituent

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5441-5443
DOI: 10.1039/C3CC49698H, CommunicationSuvendu Sekhar Mondal, Asamanjoy Bhunia, Alexandra Kelling, Uwe Schilde, Christoph Janiak, Hans-Jurgen Holdt
The reaction of 4,5-dicyano-2-methoxyimidazole (L1) with Co(NO3)2[middle dot]6H2O under solvothermal conditions in DMF, a MOF, IFP-8 and a hydrogen-bonded network consisting of tetradecanuclear Co(II)14-metal-organic cube (1) are achieved.
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Sterically controlled self-assembly of tetrahedral M6L4 cages via cationic N-donor ligands

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5469-5472
DOI: 10.1039/C3CC49663E, CommunicationAnssi Peuronen, Samu Forsblom, Manu Lahtinen
Inter-ligand steric effects dictate the self-assembly between tripodal cationic ligand L and MII (M = Cu, Pd) generating an unusual tetrahedral M6L4 cage instead of the expected M6L8 species.
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Biocatalytic amide condensation and gelation controlled by light

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5462-5464
DOI: 10.1039/C4CC01431F, CommunicationJugal Kishore Sahoo, Siva Krishna Mohan Nalluri, Nadeem Javid, Hannah Webb, Rein V. Ulijn
We report on a supramolecular self-assembly system that displays coupled light switching, biocatalytic condensation/hydrolysis and gelation.
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A two-step O- to C-glycosidic bond rearrangement using complementary glycosyltransferase activities

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5465-5468
DOI: 10.1039/C4CC00536H, CommunicationAlexander Gutmann, Corinna Krump, Linda Bungaruang, Bernd Nidetzky
A 2[prime or minute]-O- to 3[prime or minute]-C-glucosidic bond rearrangement on the flavonoid-like aglycon phloretin was catalysed with perfect atom economy by coupled uridine 5[prime or minute]-diphosphate dependent O- and C-glycosyltransferase activities.
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A quasi-solid-state rechargeable lithium-oxygen battery based on a gel polymer electrolyte with an ionic liquid

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5458-5461
DOI: 10.1039/C4CC01243G, CommunicationKyu-Nam Jung, Ji-In Lee, Jong-Hyuk Jung, Kyung-Hee Shin, Jong-Won Lee
A lithium-oxygen battery based on a gel polymer electrolyte with an ionic liquid operates for repeated discharge-charge cycles.
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A cascade reaction based fluorescent probe for rapid and selective fluoride ion detection

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5510-5513
DOI: 10.1039/C4CC01665C, CommunicationArundhati Roy, Dnyaneshwar Kand, Tanmoy Saha, Pinaki Talukdar
A cascade reaction-based colorimetric and fluorescent probe for selective fluoride ion detection is reported. The probe displays a fast response (t1/2 = 2.41 min) and 550-fold fluorescence enhancement during sensing of the ions. Application of the probe in live cell imaging is demonstrated.
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Cyclo-oligo-(1 [rightward arrow] 6)-[small beta]-D-glucosamine based artificial channels for tunable transmembrane ion transport

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5514-5516
DOI: 10.1039/C3CC49490J, CommunicationTanmoy Saha, Arundhati Roy, Marina L. Gening, Denis V. Titov, Alexey G. Gerbst, Yury E. Tsvetkov, Nikolay E. Nifantiev, Pinaki Talukdar
Unimolecular ion channels were designed by functionalization of a new type of cyclic oligosaccharides, cyclo-oligo-(1 [rightward arrow] 6)-[small beta]-D-glucosamines, with pentabutylene glycol chains. Their ion transporting activity was tuned by varying oligomericity. A halide selectivity sequence, Cl- > Br- > I- was observed.
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Chemical control of the monovalent-divalent electron-transfer phase transition in biferrocenium-TCNQ salts

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5473-5475
DOI: 10.1039/C4CC01296H, CommunicationTomoyuki Mochida, Yusuke Funasako, Kousuke Takazawa, Masashi Takahashi, Michio M. Matsushita, Tadashi Sugawara
An ionic molecular crystal of (dineopentylbiferrocene)(F1TCNQ)3 exhibits a phase transition from a monovalent state (D+A3-) to a divalent state (D2+A32-) at around 120 K.
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Four-component strategy for selective synthesis of azepino[5,4,3-cd]indoles and pyrazolo[3,4-b]pyridines

28 April, 2014 - 18:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC00740A, CommunicationBo Jiang, Qin Ye, Wei Fan, Shu-Liang Wang, Shu-Jiang Tu, Guigen Li
One-pot multicomponent formations of azepino[5,4,3-cd]indoles and pyrazolo[3,4-b]pyridines have been established with great scope and efficiency.
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Asymmetric synthesis of heteroaryl atropisomers via a gold-catalyzed cycloisomerization-amination cascade reaction

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5451-5454
DOI: 10.1039/C4CC01397B, CommunicationRui Guo, Kang-Nan Li, Bin Liu, Hua-Jie Zhu, Yu-Meng Fan, Liu-Zhu Gong
The chiral gold(I) complex enables enantioselective cycloisomerization-amination of 2-(alkynyl)phenyl boronic acids and diazenes in high yields.
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Fast responding and selective near-IR Bodipy dye for hydrogen sulfide sensing

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5455-5457
DOI: 10.1039/C4CC00762J, CommunicationTugba Ozdemir, Fazli Sozmen, Sevcan Mamur, Turgay Tekinay, Engin U. Akkaya
A Bodipy based, highly selective probe for hydrogen sulfide has been designed, synthesized and demonstrated to detect H2S in living cells.
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Facile synthesis of one-dimensional peapod-like Sb@C submicron-structures

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5435-5437
DOI: 10.1039/C4CC01326C, CommunicationWei Luo, Simon Lorger, Bao Wang, Clement Bommier, Xiulei Ji
We demonstrate a novel synthetic route to fabricate a peapod-like Sb@C structure with disperse Sb submicron-particles encapsulated in carbon submicron-tubes.
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Multichromophoric electrochromic polymers: colour tuning of conjugated polymers through the side chain functionalization approach

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5413-5430
DOI: 10.1039/C4CC00163J, Feature ArticleL. Beverina, G. A. Pagani, M. Sassi
Multichromophoric, side-chain functionalized, electrochromic polymers provide control over spectroelectrochemical properties.
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Controlled assembly of peptide-functionalized gold nanoparticles for label-free detection of blood coagulation Factor XIII activity

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5431-5434
DOI: 10.1039/C4CC00572D, CommunicationRona Chandrawati, Molly M. Stevens
A highly sensitive label-free assay for the determination of blood coagulation Factor XIII activity is demonstrated through controlled assembly of peptide-functionalized gold nanoparticles via the formation of [varepsilon]-([gamma]-glutamyl)-lysine bonds.
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Synthesis of antimicrobial cyclodextrins bearing polyarylamino and polyalkylamino groups via click chemistry for bacterial membrane disruption

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5444-5446
DOI: 10.1039/C3CC49543D, CommunicationHatsuo Yamamura, Yuuki Sugiyama, Kensuke Murata, Takanori Yokoi, Ryuji Kurata, Atsushi Miyagawa, Kenji Sakamoto, Keiko Komagoe, Tsuyoshi Inoue, Takashi Katsu
Antimicrobial cyclodextrin derivatives synthesized by click chemistry to disrupt bacterial membranes and enable selective toxicity against bacteria.
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Complexation-induced inversion of helicity by an organic guest in a dynamic molecular propeller based on a tristerephthalamide host with a two-layer structure

28 April, 2014 - 18:54

Chem. Commun., 2014, 50,5438-5440
DOI: 10.1039/C4CC00323C, CommunicationRyo Katoono, Kenshu Fujiwara, Takanori Suzuki
A tristerephthalamide host exhibited two helical geometries with (M)- and (P)-helicity, respectively, in terms of the twisting direction of a two-layer structure, and the helical preference switched upon complexation with a ditopic guest.
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Peptide catalysis in aqueous emulsions

24 April, 2014 - 17:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC01759E, CommunicationJorg Duschmale, Sonja Kohrt, Helma Wennemers
The scope of a peptidic catalyst was expanded to reactions in aqueous emulsions. The findings have intriguing implications for the chemical evolution of enzymes.
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Impact of molecular charge on GLUT-specific cellular uptake of glucose bioprobes and in vivo application of the glucose bioprobe, GB2-Cy3

24 April, 2014 - 17:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC00955J, CommunicationJongmin Park, Jung In Um, Ala Jo, Jinho Lee, Da-Woon Jung, Darren R. Williams, Seung Bum Park
Based on our study on the effect of the molecular charge of glucose bioprobes, we applied GB2-Cy3 to in vivo imaging in the zebrafish model.
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Resonance-Raman spectro-electrochemistry of intermediates in molecular artificial photosynthesis of bimetallic complexes

22 April, 2014 - 17:17

Chem. Commun., 2014, 50,5227-5229
DOI: 10.1039/C3CC47487A, CommunicationLinda Zedler, Julien Guthmuller, Ines Rabelo de Moraes, Stephan Kupfer, Sven Krieck, Michael Schmitt, Jurgen Popp, Sven Rau, Benjamin Dietzek
Short lived reactive intermediates during photoinduced multielectron transfer have been studied by in situ UV-vis and RR spectro-electrochemistry revealing the impact of individual electronic transitions on the efficiency of a H2 evolving photocatalyst.
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Synthesis of squaraine dyes under mild conditions: applications for labelling and sensing of biomolecules

22 April, 2014 - 17:17

Chem. Commun., 2014, 50,5288-5290
DOI: 10.1039/C3CC47894G, CommunicationMazen Haj Sleiman, Sylvain Ladame
We report the synthesis of squaraine dyes under mild conditions by carbodiimide activation of squaric acid or semi-squaraine dyes.
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