Chem. Commun.

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CuAAC "click" active-template synthesis of functionalised [2]rotaxanes using small exo-substituted macrocycles: how small is too small?

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7044-7047
DOI: 10.1039/C4CC03077J, CommunicationAsif Noor, Warrick K. C. Lo, Stephen C. Moratti, James D. Crowley
A small readily synthesised 24-membered exo-alcohol functionalised pyridyl macrocycle can be exploited in the CuAAC active-template synthesis of functionalised [2]rotaxanes.
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Activation and deprotection of F-BODIPYs using boron trihalides

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7028-7031
DOI: 10.1039/C4CC02706J, CommunicationTravis Lundrigan, T. Stanley Cameron, Alison Thompson
F-BODIPYs are deprotected simply by treating with BX3 and water.
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A nonstoichiometric SnO2-[small delta] nanocrystal-based counter electrode for remarkably improving the performance of dye-sensitized solar cells

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7020-7023
DOI: 10.1039/C4CC02066A, CommunicationJian Pan, Lianzhou Wang, Jimmy C. Yu, Gang Liu, Hui-Ming Cheng
The nonstoichiometric SnO2-[small delta] counter electrode for dye-sensitized solar cells gives a much superior energy conversion efficiency compared to the stoichiometric electrode.
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Intrinsic bioconjugation for site-specific protein PEGylation at N-terminal serine

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6909-6912
DOI: 10.1039/C4CC01928H, CommunicationPaul M. Levine, Timothy W. Craven, Richard Bonneau, Kent Kirshenbaum
A rapid and site-specific method to introduce PEG chains onto the N-terminus of peptides and proteins through native amide linkages at serine is described.
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Near infra-red emission from a mer-Ru(II) complex: consequences of strong [sigma]-donation from a neutral, flexible ligand with dual binding modes

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6846-6849
DOI: 10.1039/C3CC49880H, CommunicationAmlan K. Pal, Nelsi Zaccheroni, Sebastiano Campagna, Garry S. Hanan
A mer-Ru(II)-polypyridyl complex containing a strong [sigma]-donating tridentate ligand with extended bite angle exhibits room temperature luminescence in NIR-region (901 nm), which is a consequence of an increased 3MLCT-3MC energy gap.
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Cationic amphiphilic non-hemolytic polyacrylates with superior antibacterial activity

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7071-7074
DOI: 10.1039/C4CC01583E, CommunicationAshish Punia, Edward He, Kevin Lee, Probal Banerjee, Nan-Loh Yang
Antibacterial polyacrylate copolymers of 6-carbon and 2-carbon spacer arm cationic counits with composition sensitivity on selectivity.
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CaH2-assisted low temperature synthesis of metallic magnetic nanoparticle-loaded multiwalled carbon nanotubes

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6866-6868
DOI: 10.1039/C4CC01592D, CommunicationLiis Seinberg, Shinpei Yamamoto, Masahiko Tsujimoto, Yoji Kobayashi, Mikio Takano, Hiroshi Kageyama
Ni or Fe nanoparticle-loaded multiwalled carbon nanotubes can be prepared even at 400 [degree]C by simply heating metal organic salts with CaH2.
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Chemically regulating Rh(I)-Bodipy photoredox switches

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6850-6852
DOI: 10.1039/C4CC01345J, CommunicationA. M. Lifschitz, R. M. Young, J. Mendez-Arroyo, V. V. Roznyatovskiy, C. M. McGuirk, M. R. Wasielewski, C. A. Mirkin
Photoinduced electron transfer from a Rh(I) center to an excited Bodipy unit within coordination complexes is regulated in situ by affecting the redox potential of either moiety thought the introduction of neutral and anionic ligands.
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Supramolecular colloidosomes: fabrication, characterisation and triggered release of cargo

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7048-7051
DOI: 10.1039/C4CC01479K, CommunicationGodwin Stephenson, Richard M. Parker, Yang Lan, Ziyi Yu, Oren A. Scherman, Chris Abell
Supramolecular colloidosomes are self-assembled at the interface of microfluidic droplets via a cucurbit[8]uril host-guest complex, allowing for triggered release of aqueous cargo.
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Near-infrared light triggerable deformation-free polysaccharide double network hydrogels

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7052-7055
DOI: 10.1039/C4CC02216E, CommunicationRong-Cong Luo, Zhen Han Lim, Wei Li, Peng Shi, Chia-Hung Chen
Agarose/alginate double network hydrogels composited with polypyrrole (PPy) nanoparticles enable formation of light-triggerable deformation-free materials.
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Phosphine catalyzed reduction of CO2 with boranes

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7007-7010
DOI: 10.1039/C4CC02103G, CommunicationTongen Wang, Douglas W. Stephan
Phosphine is shown to catalyse the reaction of CO2 with 9-BBN to give mixtures of HCO2(B(C8H14)) 3, H2C(OB(C8H14))24 and MeOB(C8H14) 5; at 0.02 mol% of tBu3P 5 is obtained in 98% yield at 60 [degree]C with TON of almost 5500 and a TOF of 170.
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Asymmetric synthesis of functionalized cyclohexanes bearing five stereocenters via a one-pot organocatalytic Michael-Michael-1,2-addition sequence

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6853-6855
DOI: 10.1039/C4CC01885K, CommunicationPankaj Chauhan, Gregor Urbanietz, Gerhard Raabe, Dieter Enders
A highly stereoselective one-pot organocatalytic procedure involving a Michael-Michael-1,2-addition sequence provides an efficient access to fully substituted cyclohexanes bearing five contiguous stereocenters in good yields and excellent stereoselectivities.
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Selective P4 activation by an organometallic nickel(I) radical: formation of a dinuclear nickel(II) tetraphosphide and related di- and trichalcogenides

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7014-7016
DOI: 10.1039/C4CC02601B, CommunicationStefan Pelties, Dirk Herrmann, Bas de Bruin, Frantisek Hartl, Robert Wolf
The reaction of white phosphorus with a mononuclear cyclopentadienyl nickel(I) complex affords a nickel-substituted tetraphospha[1.1.0]bicyclobutane in a highly selective fashion.
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Label-free, optical sensing of the supramolecular assembly into fibrils of a ditryptophan-DNA hybrid

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6863-6865
DOI: 10.1039/C4CC02631D, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Nidhi Gour, Jancy Nixon Abraham, Mohamed Chami, Axel Castillo, Sandeep Verma, Corinne Vebert-Nardin
Label free optical sensing of the formation of WW-DNA fibrillar structures.
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Reversible single-chain selective point folding via cyclodextrin driven host-guest chemistry in water

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7056-7059
DOI: 10.1039/C4CC03218G, CommunicationJohannes Willenbacher, Bernhard V. K. J. Schmidt, David Schulze-Suenninghausen, Ozcan Altintas, Burkhard Luy, Guillaume Delaittre, Christopher Barner-Kowollik
A new platform technology for the reversible folding of single polymer chains in aqueous environment on the basis of cyclodextrin (CD) host-guest chemistry and controlled radical polymerization protocols is introduced.
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Photoresponsive supramolecular self-assembly of monofunctionalized pillar[5]arene based on stiff stilbene

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7001-7003
DOI: 10.1039/C4CC02760D, CommunicationYuan Wang, Jiang-Fei Xu, Yu-Zhe Chen, Li-Ya Niu, Li-Zhu Wu, Chen-Ho Tung, Qing-Zheng Yang
We reported a photoresponsive monofunctionalized pillar[5]arene based on stiff stilbene. Z-1 tends to form self-complexing [1]pseudorotaxanes and [c2] daisy chains, whereas E-1 forms supramolecular polymers.
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Dissolvable metallohydrogels for controlled release: evidence of a kinetic supramolecular gel phase intermediate

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7032-7035
DOI: 10.1039/C4CC02771J, CommunicationSubhadeep Saha, Jurgen Bachl, Tanay Kundu, David Diaz Diaz, Rahul Banerjee
Two shape-persistent metallohydrogels were synthesized and found to display unique opaque gel-to-transparent gel phase transition as well as gradual dissolution in water, which offered a versatile platform for drug delivery applications.
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MCF-supported boronic acids as efficient catalysts for direct amide condensation of carboxylic acids and amines

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,7017-7019
DOI: 10.1039/C4CC01148A, CommunicationLiuqun Gu, Jaehong Lim, Jian Liang Cheong, Su Seong Lee
Optimizing the microenvironments can significantly enhance the catalytic activity.
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Ammonium formate decomposition over Au/TiO2: a unique case of preferential selectivity against NH3 oxidation

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6998-7000
DOI: 10.1039/C4CC00196F, CommunicationManasa Sridhar, Daniel Peitz, Jeroen Anton van Bokhoven, Oliver Krocher
The unique selectivity of Au/TiO2 for converting ammonium formate to CO2 in the presence of excess O2 and H2O without oxidising NH3 up to 300 [degree]C is reported.
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Synthesis of spiro[isoquinolinone-4,2[prime or minute]-oxiranes] and isoindolinones via a multicomponent reaction of 2-acetyl-oxirane-2-carboxamides, arylaldehydes and malononitrile

4 June, 2014 - 03:17

Chem. Commun., 2014, 50,6995-6997
DOI: 10.1039/C4CC02141J, CommunicationBing Liu, Enxiang Wei, Shaoxia Lin, Baozhong Zhao, Fushun Liang
Efficient synthesis of spiro[isoquinolinone-4,2[prime or minute]-oxiranes] was achieved based on a multicomponent one-pot reaction of readily available cis-2-acetyl-oxirane-2-carboxamides, arylaldehydes and malononitrile at room temperature.
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