Chem. Commun.

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Beyond the anisotropy barrier: slow relaxation of the magnetization in both easy-axis and easy-plane Ln(trensal) complexes

23 January, 2014 - 19:17

Chem. Commun., 2014, 50,1648-1651
DOI: 10.1039/C3CC48866G, CommunicationEva Lucaccini, Lorenzo Sorace, Mauro Perfetti, Jean-Pierre Costes, Roberta Sessoli
The slow relaxation of the magnetization of lanthanide SMMs cannot be directly associated with the nature of magnetic anisotropy.
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Regioselective functionalization of 2-arylazetidines: evaluating the ortho-directing ability of the azetidinyl ring and the [small alpha]-directing ability of the N-substituent

23 January, 2014 - 19:17

Chem. Commun., 2014, 50,1698-1700
DOI: 10.1039/C3CC48555B, CommunicationLeonardo Degennaro, Marina Zenzola, Piera Trinchera, Laura Carroccia, Arianna Giovine, Giuseppe Romanazzi, Aurelia Falcicchio, Renzo Luisi
The regioselective lithiation-functionalization of 2-arylazetidines has been explored. ortho- or benzylic lithiation occur depending on the nature of the N-substituent.
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Near infrared photolysis of a Ru polypyridyl complex by upconverting nanoparticles

23 January, 2014 - 19:17

Chem. Commun., 2014, 50,1715-1718
DOI: 10.1039/C3CC47601D, CommunicationE. Ruggiero, A. Habtemariam, L. Yate, J. C. Mareque-Rivas, L. Salassa
NaYF4:Yb3+/Er3+nanocrystals upconvert near infrared light (980 nm) into higher energy visible photons capable of effecting the photodissociation of the monodentate pyridyl ligand in cis-[Ru(bpy)2(py)2]Cl2: opening an opportunity for advancing the use of photoactivatable metal complexes in medicine and biology.
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In situ observation of electrolytic H2 evolution adjacent to gold cathodes

23 January, 2014 - 19:17

Chem. Commun., 2014, 50,1761-1763
DOI: 10.1039/C3CC46737F, CommunicationY. Liu, S. J. Dillon
The early stages of gas evolution during electrolytic hydrogen production on Au electrodes are characterized by in situ transmission electron microscopy.
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A near-infrared colorimetric fluorescent chemodosimeter for the detection of glutathione in living cells

21 January, 2014 - 18:54

Chem. Commun., 2014, 50,1751-1753
DOI: 10.1039/C3CC48128J, CommunicationMeng Li, Xumeng Wu, Yao Wang, Yongsheng Li, Weihong Zhu, Tony D. James
A novel near-infrared (NIR) and colorimetric fluorescent molecular probe based on a dicyanomethylene-4H-pyran chromophore for the selective detection of glutathione in living cells has been developed.
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Redox-Triggered Changes in the Self-Assembly of a Ferrocene-Peptide Conjugate

21 January, 2014 - 18:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C3CC49268K, CommunicationHeinz-Bernhard Kraatz, Bimalendu Adhikari
Ultrasonication of a toluene solution of a ferrocene conjugate of a short amyloid peptide (A[small beta]18-20) causes formation of an organogel, which undergoes dramatic structural changes upon oxidation from a gel...
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Unusual pore structure and sorption behaviour in a hexanodal zinc-organic framework material

21 January, 2014 - 18:54

Chem. Commun., 2014, 50,1678-1681
DOI: 10.1039/C3CC48556K, CommunicationJinjie Qian, Feilong Jiang, Linjie Zhang, Kongzhao Su, Jie Pan, Qipeng Li, Daqiang Yuan, Maochun Hong
A highly porous metal-organic framework structurally consists of three topological kinds of 3-connected 1,3,5-benzenetricarboxylate ligands, Zn2(COO)4, Zn3O(COO)6 and Zn4O(COO)6 SBUs, featuring a new 3,3,3,4,4,6-c hexanodal topology.
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Luminescent oligo(ethylene glycol)-functionalized cyclometalated platinum(II) complexes: cellular characterization and mitochondria-specific localization

21 January, 2014 - 18:54

Chem. Commun., 2014, 50,1711-1714
DOI: 10.1039/C3CC47150K, CommunicationZhengqing Guo, Wah-Leung Tong, Michael C. W. Chan
Suitable derivatization and variation in lipophilicity of non-planar oligo(ethylene glycol)-functionalized phosphorescent platinum(II) complexes can give traceable mitochondria-specific localization behavior and potent cytotoxicity towards HeLa cells.
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Designing a simple organic salt-based supramolecular topical gel capable of displaying in vivo self-delivery application

21 January, 2014 - 18:54

Chem. Commun., 2014, 50,1671-1674
DOI: 10.1039/C3CC48513G, CommunicationJoydeb Majumder, Jolly Deb, Mahua Rani Das, Siddhartha Sankar Jana, Parthasarathi Dastidar
A topical gel derived from a simple organic salt of a NSAID, naproxen, designed by a supramolecular synthon rationale showed excellent in vivo self-delivery application.
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The [4+2] cycloaddition of donor-acceptor cyclobutanes and nitrosoarenes

21 January, 2014 - 18:54

Chem. Commun., 2014, 50,1668-1670
DOI: 10.1039/C3CC47775D, CommunicationNaresh Vemula, Andrew C. Stevens, Tyler B. Schon, Brian L. Pagenkopf
The Yb(OTf)3 catalyzed [4+2] cycloaddition between donor-acceptor cyclobutanes and nitrosoarenes is disclosed. This method facilitates the synthesis of tetrahydro-1,2-oxazines in good to excellent yields as single diastereomers. Except for a few electron-deficient nitrosoarenes, excellent regioselectivity was observed throughout these studies.
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Targeting a c-MYC G-quadruplex DNA with a fragment library

21 January, 2014 - 18:54

Chem. Commun., 2014, 50,1704-1707
DOI: 10.1039/C3CC48390H, CommunicationHamid R. Nasiri, Neil M. Bell, Keith I. E. McLuckie, Jarmila Husby, Chris Abell, Stephen Neidle, Shankar Balasubramanian
A fragment library was screened against the human c-MYC promoter G-quadruplex. Ten fragment hits had a significant concordance between a biophysical assay, in silico modelling and c-MYC expression inhibition.
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Composite catalyst of rosin carbon/Fe3O4: highly efficient counter electrode for dye-sensitized solar cells

21 January, 2014 - 18:54

Chem. Commun., 2014, 50,1701-1703
DOI: 10.1039/C3CC47163B, CommunicationLiang Wang, Yantao Shi, Yanxiang Wang, Hong Zhang, Huawei Zhou, Ying Wei, Shengyang Tao, Tingli Ma
A composite catalyst of rosin carbon/Fe3O4 with marvellous morphology was synthesized and applied as a counter electrode (CE) in dye-sensitized solar cells (DSCs), demonstrating notable electrocatalytic activity for the reduction of I3-.
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Homochiral coordination polymeric gel: Zn2+-induced conformational changes leading to J-aggregated helical fibres formation

21 January, 2014 - 18:54

Chem. Commun., 2014, 50,1675-1677
DOI: 10.1039/C3CC47359G, CommunicationMrigendra Dubey, Ashish Kumar, Daya Shankar Pandey
A homochiral coordination polymeric gel based on an amino acid derived symmetrical ligand, specific base, and Zn2+ has been described. Zn2+-induced conformational reorganization in the ligand leads to gelation via J-aggregated helical fibres.
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Manipulating the concavity of rhodium nanocubes enclosed by high-index facets via site-selective etching

21 January, 2014 - 18:54

Chem. Commun., 2014, 50,1662-1664
DOI: 10.1039/C3CC47567K, CommunicationYumin Chen, Qing-Song Chen, Si-Yan Peng, Zhi-Qiao Wang, Gang Lu, Guo-Cong Guo
A simple and effective site-selective etching strategy has been developed to manipulate the concavity of rhodium nanocubes with high-index facets.
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Selective on/off switching at room temperature of a magnetic bistable {Fe2Co2} complex with single crystal-to-single crystal transformation via intramolecular electron transfer

21 January, 2014 - 18:54

Chem. Commun., 2014, 50,1665-1667
DOI: 10.1039/C3CC48116F, CommunicationLi Cao, Jun Tao, Qian Gao, Tao Liu, Zhengcai Xia, Dongfeng Li
A cyano-bridged {Fe2Co2} complex exhibits reversible CTIST at room temperature triggered by desorption-absorption of methanol with SC-SC transformation in the solid state.
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One pot synthesis of cyclohexanone oxime from nitrobenzene using a bifunctional catalyst

21 January, 2014 - 18:54

Chem. Commun., 2014, 50,1645-1647
DOI: 10.1039/C3CC47693F, CommunicationPaula Rubio-Marques, Juan Carlos Hernandez-Garrido, Antonio Leyva-Perez, Avelino Corma
Cyclohexanone oxime is formed from nitrobenzene with 97% yield in a one-pot reaction catalysed by small palladium and gold nanoparticles. The reaction is carried out under hydrogen at 60 [degree]C and the overall transformation involves a multi-step catalysed mechanism from which intermediates and catalytically active species have been identified.
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Outer-sphere anion recognition by a cyclen-based octadentate europium(III) complex: pH dependent recognition of ortho-phthalic acid

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1582-1584
DOI: 10.1039/C3CC48628A, CommunicationDesigan Sannasy, Helder M. Marques, Manuel A. Fernandes, Alvaro S. de Sousa
An octadentate cyclen-based europium complex with amidic and hydroxyalkyl pendent moieties exhibits pH dependent ligand denticity associated with anion recognition.
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Axle component separated ion-pair recognition by a neutral heteroditopic [2]rotaxane

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1540-1542
DOI: 10.1039/C3CC48905A, CommunicationRichard C. Knighton, Paul D. Beer
A neutral heteroditopic pyridine N-oxide axle containing [2]rotaxane, synthesised via sodium cation templation, displays cooperative recognition of alkali metal cation-halide anion ion-pairs in an unprecedented axle component separated ion-pair binding fashion.
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Complex single-chain polymer topologies locked by positionable twin disulfide cyclic bridges

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1570-1572
DOI: 10.1039/C3CC47807F, CommunicationOlga Shishkan, Mirela Zamfir, Marc Andre Gauthier, Hans G. Borner, Jean-Francois Lutz
Double cyclic polymer topologies were prepared by intramolecular folding of sequence-controlled linear precursors containing precisely positioned self-associating cysteine-arginine-cysteine peptide motifs.
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Quencher-free molecular beacons as probes for oligonucleotides containing CAG repeat sequences

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1561-1563
DOI: 10.1039/C3CC48853E, CommunicationKi Tae Kim, Rakesh N. Veedu, Young Jun Seo, Byeang Hyean Kim
Quencher-free molecular beacons allow the sensitive probing of DNA and RNA CAG repeat oligonucleotides with significant increases in fluorescence intensity of 16- and 43.5-fold, respectively.
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