Chem. Commun.

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Facile synthesis of a genuinely alkane-soluble but isolable lithium hydride transfer reagent

23 September, 2014 - 06:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC06421F, CommunicationStuart D. Robertson, Alan R. Kennedy, John J. Liggat, Robert E. Mulvey
1-Lithio-2-alkyl-1,2-dihydropyridines, easily formed from addition of (n- or t-)BuLi to pyridine, have been compared; the steric bulk of the branched alkyl substituent enforces lesser oligomerization, thus enhancing alkane solubility making it an amenable, convenient lithium hydride transfer reagent in non-polar, aliphatic media.
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Double zipper helical assembly of deoxyoligonucleotides: mutual templating and chiral imprinting to form hybrid DNA ensembles

23 September, 2014 - 06:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC06759B, CommunicationNagarjun Narayanaswamy, Gorle Suresh, U. Deva Priyakumar, T. Govindaraju
Herein, the conventional and unconventional hydrogen bonding potential of adenine in APA for double zipper helical assembly of deoxyoligonucleotides is demonstrated under ambient conditions.
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Fine tuning the ionic liquid-vacuum outer atomic surface using ion mixtures

23 September, 2014 - 06:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC06307D, CommunicationIgnacio J. Villar-Garcia, Sarah Fearn, Nur L. Ismail, Alastair J. S. McIntosh, Kevin R. J. Lovelock
Ionic liquid-vacuum outer atomic surfaces can be created that are remarkably different from the bulk composition.
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Haemoglobin wrapped covalently by human serum albumin mutants containing Mn(III) protoporphyrin IX: an O2 complex stable in H2O2 solution

23 September, 2014 - 06:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC06076H, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Y. Daijima, T. Komatsu
Haemoglobin (Hb) wrapped covalently by human serum albumin mutants [HSA(Y161H)] containing Mn(III) protoporphyrin IX (MnPP), the Hb-[HSA(Y161H)-MnPP]3 cluster, formed a stable O2-complex even in H2O2 solution.
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Synthesis and structural characterization of a C4 cumulene including 4-pyridylidene units, and its reactivity towards ammonia-borane

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12378-12381
DOI: 10.1039/C4CC05886K, CommunicationDi Wu, Yongxin Li, Rakesh Ganguly, Rei Kinjo
A novel type of C4 cumulene derivative featuring 4-pyridylidene units has been synthesized. X-ray diffraction analysis and computational studies revealed the presence of consecutive C[double bond, length as m-dash]C double bonds in the C4 backbone as well as the quinoidal pyridylidene structures.
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Ligands effects on the magnetic anisotropy of tetrahedral cobalt complexes

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12266-12269
DOI: 10.1039/C4CC05724D, CommunicationMohamed R. Saber, Kim R. Dunbar
A trend of increasingly more negative zero-field splitting parameters D was observed for a series of pseudo-tetrahedral mononuclear cobalt complexes, Co(L)2I2 (1-3) (L = quinolone, PPh3 or AsPh3) in going down the group from N to P and As (1 = +9.2 cm-1, 2 = -36.9 cm-1 and 3 = -74.7 cm-1) with 2 and 3 exhibiting slow relaxation of the magnetization under an applied DC field.
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On the mechanism of the reaction of a magnesium(I) complex with CO2: a concerted type of pathway

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12318-12321
DOI: 10.1039/C4CC04984E, CommunicationChristos E. Kefalidis, Andreas Stasch, Cameron Jones, Laurent Maron
Theoretical mechanistic calculations (DFT) on the reactivity of [{(DipNacnac)Mg}2] (DipNacnac = [(DipNCMe)2CH]-, Dip = C6H3iPr2-2,6) towards CO2 were carried out in order to rationalise the experimental formation of carbonate (major product) and oxalate (minor product).
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Croton insularis introduces the seco-casbane class with EBC-329 and the first casbane endoperoxide EBC-324

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12315-12317
DOI: 10.1039/C4CC05413J, CommunicationLidiya A. Maslovskaya, Andrei I. Savchenko, Elizabeth H. Krenske, Victoria A. Gordon, Paul W. Reddell, Carly J. Pierce, Peter G. Parsons, Craig M. Williams
Croton insularis unveiled the first seco-casbane diterpene EBC-329, along with EBC-324, which consists of an epoxidised hemi-acetal endoperoxide.
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Copper-catalyzed tandem annulation/arylation for the synthesis of diindolylmethanes from propargylic alcohols

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12293-12296
DOI: 10.1039/C4CC05901H, CommunicationHui Li, Xiaoxun Li, Hao-Yuan Wang, Gabrielle N. Winston-McPherson, Hao-miao Julie Geng, Ilia A. Guzei, Weiping Tang
Highly substituted 2,3[prime or minute]-diindolylmethanes were prepared from propargylic alcohols and indole nucleophiles via a copper-catalyzed tandem indole annulation/arylation reaction.
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Probing the spatial and momentum distribution of confined surface states in a metal coordination network

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12289-12292
DOI: 10.1039/C4CC03941F, CommunicationJun Zhang, Aneliia Shchyrba, Sylwia Nowakowska, Ernst Meyer, Thomas A. Jung, Matthias Muntwiler
We show how the surface state is confined and modulated by the porous structure of a metal-coordinated dicyano-anthracene on-surface network on Cu(111), as evidenced by scanning tunnelling microscopy and spectroscopy measurements in real and reciprocal space.
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Electrochemical properties of ultrafine Sb nanocrystals embedded in carbon microspheres for use as Na-ion battery anode materials

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12322-12324
DOI: 10.1039/C4CC05275G, CommunicationYou Na Ko, Yun Chan Kang
The preparation of Sb-carbon composite microspheres and their electrochemical performance are investigated. Sb nanocrystals embedded in a microspherical carbon matrix exhibited superior Na-storage performances.
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Rh(I)-catalyzed decarbonylative direct C2-olefination of indoles with vinyl carboxylic acids

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12385-12388
DOI: 10.1039/C4CC06036A, CommunicationLingjuan Zhang, Ruiying Qiu, Xiao Xue, Yixiao Pan, Conghui Xu, Doudou Wang, Xinyu Wang, Lijin Xu, Huanrong Li
A general and efficient Rh(I)-catalyzed decarbonylative direct C2-olefination of indoles with readily available vinyl carboxylic acids has been developed.
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Disentangling scalar coupling patterns by real-time SERF NMR

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12254-12257
DOI: 10.1039/C4CC05892E, CommunicationNina Gubensak, Walter M. F. Fabian, Klaus Zangger
One-dimensional NMR spectra showing scalar coupling to only one selected signal can be obtained by the real-time SERF experiment.
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Enhanced Raman and luminescence spectra from co-encapsulated silicon quantum dots and Au-Ag nanoalloys

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12389-12391
DOI: 10.1039/C4CC06438K, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Noor Aniza Harun, Benjamin R. Horrocks, David A. Fulton
Luminescence and SERS signals are simultaneously enhanced with a single excitation wavelength by co-encapsulating silicon quantum dots and Au-Ag alloy nanoparticles encoded with Raman reporter molecules inside polymeric nanoparticles.
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Sequential Bi-C bond activation reactions of BiEt3via insertion reactions of RE {R = HC[C(Me)N(2,6-i-Pr2C6H3)]2; E = Al, Ga, In}

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12382-12384
DOI: 10.1039/C4CC05028B, CommunicationC. Ganesamoorthy, D. Blaser, C. Wolper, S. Schulz
Reactions of RM {R = HC[C(Me)N(2,6-i-Pr2C6H3)]2; M = Al, Ga, In} with BiEt3 yield the insertion complexes [RMEt(BiEt2)] (M = Al 1; Ga 2; In 3), which subsequently react to RMEt2, Bi and BiEt3 at high temperature.
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On the coordination chemistry of phosphinecarboxamide: assessing ligand basicity

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12281-12284
DOI: 10.1039/C4CC06094F, CommunicationM. B. Geeson, A. R. Jupp, J. E. McGrady, J. M. Goicoechea
We describe the coordination chemistry of the primary phosphine PH2C(O)NH2 (phosphinecarboxamide) to form the novel complexes W(CO)5(PH2C(O)NH2) (1) and cis-Mo(CO)4(PH2C(O)NH2)2 (2).
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Low-temperature synthesis of Mn-based mixed metal oxides with novel fluffy structures as efficient catalysts for selective reduction of nitrogen oxides by ammonia

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12396-12399
DOI: 10.1039/C4CC03072A, CommunicationBo Meng, Zongbin Zhao, Yongsheng Chen, Xuzhen Wang, Yong Li, Jieshan Qiu
A series of Mn-based mixed metal oxide catalysts prepared via low-temperature crystal splitting exhibit high catalytic activities for NH3-SCR reactions.
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A single molecular probe for multi-analyte (Cr3+, Al3+ and Fe3+) detection in aqueous medium and its biological application

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12258-12261
DOI: 10.1039/C4CC04731A, CommunicationJunfeng Wang, Yingbo Li, Nikul G. Patel, Ge Zhang, Demin Zhou, Yi Pang
An ESIPT-based fluorescent sensor 1 was developed, which could simultaneously detect trivalent metal ions Cr3+, Al3+ and Fe3+ in aqueous medium.
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Light-driven Au(III)-promoted cleavage of triazole-bearing amine derivatives and its application in the detection of ionic gold

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12352-12355
DOI: 10.1039/C4CC06348A, CommunicationDajeong Yim, Hongsik Yoon, Chi-Hwa Lee, Woo-Dong Jang
Light-driven Au(III)-promoted oxidative cleavage of triazole-bearing amine derivatives is utilized for the detection of ionic gold in aqueous media.
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N-Heterocyclic carbene-catalyzed double acylation of enones with benzils

21 September, 2014 - 06:17

Chem. Commun., 2014, 50,12285-12288
DOI: 10.1039/C4CC05436A, CommunicationKen Takaki, Akira Ohno, Makoto Hino, Takashi Shitaoka, Kimihiro Komeyama, Hiroto Yoshida
Thiazolium carbene-catalyzed reaction of aromatic 1,2-diketones with enones in aprotic solvents gave double acylation products in good yields, whereas hydroacylation products were not detected at all.
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