Chem. Commun.

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Polar Stacking of Molecules in Liquid Chloroform

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09235J, CommunicationJacob J Shephard, Alan K Soper, Samantha Kim Callear, Silvia Imberti, John S O Evans, Christoph G. Salzmann
Using neutron diffraction and the isotopic substitution technique we have investigated the local structure of liquid chloroform. A strong tendency for polar stacking of molecules with collinear alignment of dipole...
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A Robust and Conductive Metal-Impregnated Graphene Oxide Membrane Selectively Separating Organic Vapors

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08896D, CommunicationDo Van Lam, Tao Gong, Sejeong Won, Changgu Lee, Hak-Joo Lee, Jae-Hyun Kim, Seung-Mo Lee
Upon impregnating a small amount of transition metal impurities into soft materials with hydrogen bonds significantly improves such the materials' mechanical stabilities. Here, for the first time, we report a...
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A Supramolecular Ladder Polymer by Hydrogen Bonding-Mediated Self-Assembly of a Metallomacrocycle

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08817D, CommunicationChun-Fai Ng, Hak-Fun Chow
A defect-free supramolecular ladder polymer was prepared by H-bond-mediated self-assembly of a metallocycle 1 as determined by NMR, viscometry and dynamic laser light scattering studies. This ladder polymer further self-assembled...
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A new class of rare earth tetrapyrrole sandwich complexes containing corrole and phthalocyanine macrocycles: synthesis, physicochemical characterization and X-ray analysis

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09755F, CommunicationK M Kadish, Guifen Lu, Sen Yan, Mengying Shi, Wenhan Yu, Jing Li, Weihua Zhu, Zhongping Ou
The first europium triple-decker tetrapyrrole with mixed corrole and phthalocyanine macrocycles was synthesized and characterized by spectroscopic and electrochemical methods. The molecular structure was characterized by single-crystal X-ray diffraction and...
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Ligation Driven 19F Relaxation Enhancement in Self-Assembled Ln(III) Complexes

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09952D, CommunicationGemma Davies, Asha Brown, Octavia A Blackburn, Manuel Tropiano, Steve Faulkner, P D Beer, Jason J Davis
Strong bidentate ligation between a fluorinated isophthalate and binuclear lanthanide-DO3A species yields a new class of 19F NMR agent with very high nuclear relaxation rates at physiologically-relevant pH.
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A smart pH-switchable luminescent hydrogel

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09861G, CommunicationChunqiu Zhang, Yiwei Li, Xiangdong Xue, Pengfei Chu, Chang Liu, Keni Yang, Yonggang Jiang, Wei-Qiang Chen, Guozhang Zou, Xing-Jie Liang
Here we report a novel example of a luminescent hydrogel, which is formed from silent individual molecules simply by altering the pH of the system. Formation of the emissive nanostructure...
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P=O functional group-containing cryptands: from supramolecular complexes to poly[2]pseudorotaxanes

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09487E, CommunicationQi Wang, Ming Cheng, Shuhan Xiong, Xiao-Yu Hu, Juli Jiang, Leyong Wang, Yi Pan
Two kinds of cryptand-based host-guest complexes were constructed successfully, in which P=O functional groups were located at the different positions of the third arms. Consequently, supramolecular poly[2]pseudorotaxanes with almost linear...
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Cysteamine-selective two-photon fluorescent probe for ratiometric bioimaging

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09416F, CommunicationAvik Ranjan Sarkar, Cheol Ho Heo, Eunjin Kim, Hyo Won Lee, Hardev Singh, Jeong Jin Kim, Hyuk Kang, Chulhun Kang, Hwan Myung Kim
We report a two-photon fluorescent probe for ratiometric imaging of cysteamine in situ. This probe can detect the levels of endogenous cysteamine with statistical significance in live cells and brain...
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Hyperbranched Crystalline Nanostructure Produced from Ionic [small pi]-Conjugated Molecules

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09288K, CommunicationUrsula Mazur , K W Hipps, Jeremy R. Eskelsen, Kara J Phillips
Self-assembled crystalline nanostructures with sheaf-like morphology fabricated from tetra(4-aminophenyl)porphyrin and tetra(4-sulfonatophenyl)porphyrin are reported for the first time. The hierarchical sheaf-like growth of the assemblies exhibits Arrhenius behaviour. The observed morphology...
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Silicon nanoparticles obtained via a low temperature chemical "metathesis" synthesis route and its lithium-ion batteries property

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09233C, CommunicationLiangbiao Wang, ning Lin, Jianbin Zhou, Yongchun Zhu, Yitai Qian
Silicon (Si) nanoparticles have been prepared by a "metathesis" reaction of magnesium silicide (Mg2Si) and zinc chloride (ZnCl2) in an autoclave at 300 [degree]C. The as-prepared Si nanoparticles exhibit a...
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Rapid Markovnikov Addition of HCl to a Pendant Alkyne: Evidence for a Quinoidal Cumulene

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09696G, CommunicationSamantha G Eaves, Sam Hart, Adrian C. Whitwood, Dimitrii S Yufit, Paul Low, Jason Lynam
Reaction of cis-[RuCl2(dppm)2]BF4 with TlBF4 and 1,4-diethynyl-benzenes results in the formation of the vinylidene cations trans-[Ru(=C=CH-C6H2-2,5-R2-4-C[identical with]CH)Cl(dppm)2]+ (R = H, Me). Subsequent reaction with [NnBu4]Cl results in nucleophilic attack at the...
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Direct Cross Coupling of Benzyl Alcohols to Construct Diarylmethanes via Palladium Catalysis

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC10084K, CommunicationZhang-Jie Shi, Zhi-Chao Cao, Da-Gang Yu, Ru-Yi Zhu, Jiang-Bo Wei
Direct arylation to furnish diarylmethanes from benzyl alcohols was realized through Pd(PPh3)4-catalyzed Suzuki-Miyaura coupling via benzylic C-O activation in the absence of any additives. The arylation is compatible with various...
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p-Phosphonic acid calix[8]arene assisted dispersion and stabilisation of pea-pod C60@multi-walled carbon nanotubes in water

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09368B, CommunicationXianjue Chen, Christopher T Gibson, Joshua Britton, Paul K Eggers, Haniff Wahid, Colin L Raston
A facile approach has been developed for non-covalently stabilising pristine C60 and multi-walled carbon nanotubes (MWCNTs) in water in the presence of p-phosphonic acid calix[8]arene, along with the formation of...
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Metal-free Lewis Acid Mediated Dehydrocoupling of Phosphines and Concurrent Hydrogenation

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09526J, CommunicationRoman Dobrovetsky, Katsuhiko Takeuchi, Douglas W Stephan
The stoichiometric reaction of trityl cation with two equivalents of Ph2PH affords the phosphine stabilized phosphenium salt [Ph2(H)PPPh2][B(C6F5)4] via hydride abstraction, while catalytic amounts of B(p-HC6F4)3 effects catalytic phosphine dehydrocoupling...
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Ultrasensitive detection of Nucleic Acids by Template Enhanced Hybridization Followed with Rolling Circle Amplification and Catalytic Hairpin Assembly

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC09453K, CommunicationWeiling Song, Qiao Zhang, Wenbo Sun
An ultrasensitive protocol for fluorescent detection of DNA is designed by combining the template enhanced hybridization process (TEHP) followed with Rolling Circle Amplification (RCA) and Catalytic Hairpin Assembly (CHA), showing...
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A high-throughput screening method for determining the substrate scope of nitrilases.

23 December, 2014 - 05:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06021K, CommunicationJustin Perry, Gary Black, Nicola Brown, David Randall, Graeme Turnbull, Meng Zhang
Nitrile compounds are intermediates in the synthesis of pharmaceuticals such as atorvastatin. We have developed a chromogenic reagent to screen for nitrilase activity as an alternative to Nessler's reagent. It...
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Neptunyl(VI) centred visible LMCT emission directly observable in the presence of uranyl(VI)

23 December, 2014 - 05:17

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC08718F, CommunicationSean D. Woodall, Adam N. Swinburne, Nidhu lal Banik, Andrew Kerridge, Poppy Di Pietro, Christian Adam, Peter Kaden, Louise S. Natrajan
The room temperature detection of neptunyl(VI) LMCT emission in a coordination compound and in the presence of uranyl(VI) is reported for the first time. Differences in the excitation profile of each complex enables spectral editing of the neptunyl(VI) and uranyl(VI) emission.
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Linear-cyclic polymer structural transformation and its reversible control using a rational rotaxane strategy

23 December, 2014 - 05:17

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC08982K, CommunicationTakahiro Ogawa, Naoya Usuki, Kazuko Nakazono, Yasuhito Koyama, Toshikazu Takata
A new strategy for "polymer structural transformation" was developed. One [1]rotaxane unit was introduced at the chain end of a linear polymer and the wheel component position was defined by controlling the attractive interaction between the polymer ends. Thus, the reversible linear-cyclic structural transformation was demonstrated.
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A novel fluoro-chromogenic click reaction for the labelling of proteins and nanoparticles with near-IR theranostic agents

23 December, 2014 - 05:17

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC09070E, CommunicationOriol Planas, Thibault Gallavardin, Santi Nonell
Binding of red-absorbing porphycene isothiocyanates to proteins and nanoparticles leads to near-IR fluorescent and photosensitising conjugates.
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The best of both worlds: active enzymes by grafting-to followed by grafting-from a protein

23 December, 2014 - 05:17

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC09287B, CommunicationRebecca Falatach, Cameron McGlone, M. Sameer Al-Abdul-Wahid, Saadyah Averick, Richard C. Page, Jason A. Berberich, Dominik Konkolewicz
Hydrophilic polymers were attached to lysozyme by a combination of grafting-to and grafting-from approaches using RAFT polymerization.
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