Chem. Commun.

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Electrohydrodynamic removal of non-specific colloidal adsorption at electrode interfaces

14 April, 2014 - 15:17

Chem. Commun., 2014, 50,4813-4815
DOI: 10.1039/C4CC01357C, CommunicationSakandar Rauf, Muhammad J. A. Shiddiky, Matt Trau
This communication reports the use of an electrohydrodynamic surface shear force to selectively manipulate colloid-surface interactions. We demonstrate the selection of strongly (specifically) bound biomolecular-functionalized colloidal beads over more weakly (non-specifically) bound beads.
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Pillar[5]- and pillar[6]arene-based supramolecular assemblies built by using their cavity-size-dependent host-guest interactions

14 April, 2014 - 15:17

Chem. Commun., 2014, 50,4776-4787
DOI: 10.1039/C4CC00738G, Feature ArticleT. Ogoshi, T. Yamagishi
We discuss various pillar[5]- and pillar[6]arene-based supramolecular assemblies built using their host-guest interactions.
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Novel binding regioselectivity in the interpenetration of a non-symmetric axle into a non-symmetric pillar[5]arene wheel

14 April, 2014 - 15:17

Chem. Commun., 2014, 50,4820-4823
DOI: 10.1039/C4CC00800F, CommunicationXiaoyan Shu, Wei Chen, Dabin Hou, Qingbin Meng, Renlin Zheng, Chunju Li
A non-symmetric pillar[5]arene bearing methyl and pentyl rims can regioselectively bind 5-bromovaleronitrile, with the directionality of CN@methyl rim and Br@pentyl rim.
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Redox-active conjugated microporous polymers: a new organic platform for highly efficient energy storage

14 April, 2014 - 15:17

Chem. Commun., 2014, 50,4788-4790
DOI: 10.1039/C4CC01002G, CommunicationFei Xu, Xiong Chen, Zhiwei Tang, Dingcai Wu, Ruowen Fu, Donglin Jiang
Redox-active conjugated microporous polymers offer outstanding energy storage in lithium batteries via synergistic structural effects.
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Copper-mediated cross-coupling-cyclization-oxidation: a one-pot reaction to construct polysubstituted pyrroles

14 April, 2014 - 15:17

Chem. Commun., 2014, 50,4795-4798
DOI: 10.1039/C3CC48728H, CommunicationPei Liu, Jin-ling Liu, Heng-shan Wang, Ying-ming Pan, Hong Liang, Zhen-Feng Chen
The first copper catalyzed synthesis of polysubstituted pyrroles from terminal alkenes, amines and [small beta]-keto esters.
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Confinement stabilises single crystal vaterite rods

12 April, 2014 - 14:54

Chem. Commun., 2014, 50,4729-4732
DOI: 10.1039/C4CC01093K, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Anna S. Schenk, Eduardo J. Albarracin, Yi-Yeoun Kim, Johannes Ihli, Fiona C. Meldrum
Single-crystals of vaterite, the least-stable anhydrous polymorph of CaCO3, are rare in biogenic and synthetic systems. We here describe the synthesis of high aspect ratio single crystal vaterite rods under additive-free conditions by precipitating CaCO3 within the cylindrical pores of track-etch membranes.
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A stable Janus bis(maloNHC) and its zwitterionic coinage metal complexes

12 April, 2014 - 14:54

Chem. Commun., 2014, 50,4725-4728
DOI: 10.1039/C4CC01200C, CommunicationDaniela Tapu, Zachary McCarty, Colin McMillen
The first stable dianionic Janus-type ligand combining two facially opposed maloNHCs was isolated and incorporated into two new dinuclear zwitterionic metal complexes.
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Water-soluble pyrrolopyrrole cyanine (PPCy) NIR fluorophores

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4755-4758
DOI: 10.1039/C4CC01014K, CommunicationSimon Wiktorowski, Christelle Rosazza, Martin J. Winterhalder, Ewald Daltrozzo, Andreas Zumbusch
Water-soluble pyrrolopyrrole cyanines (PPCys) NIR fluorophores suited for live cell imaging have been synthesized.
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On the upconversion fluorescence in carbon nanodots and graphene quantum dots

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4703-4706
DOI: 10.1039/C4CC01213E, CommunicationXiaoming Wen, Pyng Yu, Yon-Rui Toh, Xiaoqian Ma, Jau Tang
So-called upconversion fluorescence in CNDs and GQDs is confirmed originating from a measurement mistake; therefore cross-check is very necessary.
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A sulfur mimic of 1,1-bis(diphenylphosphino)methane: a new ligand opens up

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4707-4710
DOI: 10.1039/C3CC49456J, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Peter E. Sues, Alan J. Lough, Robert H. Morris
Tetrasubstituted-diphosphine monosulfides "open up" and coordinate to Ru(II) as chelating bis(ditertiaryphosphino)thioethers.
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Fe-Catalysed oxidative C-H/N-H coupling between aldehydes and simple amides

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4736-4739
DOI: 10.1039/C4CC01447B, CommunicationJing Wang, Chao Liu, Jiwen Yuan, Aiwen Lei
Fe-catalyzed oxidative coupling of simple secondary amides with aldehydes to construct imides, most likely involving the benzoyl halide intermediate, was achieved.
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Axially chiral BODIPYs

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4714-4716
DOI: 10.1039/C4CC00851K, CommunicationReinner I. Lerrick, Thomas P. L. Winstanley, Karen Haggerty, Corinne Wills, William Clegg, Ross W. Harrington, Patrick Bultinck, Wouter Herrebout, Andrew C. Benniston, Michael J. Hall
The synthesis and resolution of a class of chiral organic fluorophores, axially chiral 4,4-difluoro-4-bora-3a,4a-diaza-s-indacenes (Ax*-BODIPY), is described. Ax*-BODIPYs were prepared through a modular synthesis, resolved by preparative chiral HPLC and absolute stereochemistry assigned by ECD.
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Direct N-acylation of azoles via a metal-free catalyzed oxidative cross-coupling strategy

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4751-4754
DOI: 10.1039/C4CC01587H, CommunicationJingjing Zhao, Pan Li, Chungu Xia, Fuwei Li
The KI-catalyzed N-acylation of azoles via direct oxidative coupling of C-H and N-H bonds has been developed. It could be smoothly scaled up to gram synthesis of acyl azoles. The reaction occurred by the coupling of acyl radicals and azoles to form the acyl azole radical anion, followed by its further oxidation.
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A novel oxidative procedure for the synthesis of benzamides from styrenes and amines under metal-free conditions

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4747-4750
DOI: 10.1039/C4CC01054J, CommunicationMuhammad Sharif, Jin-Long Gong, Peter Langer, Matthias Beller, Xiao-Feng Wu
An interesting procedure for the oxidative synthesis of amides from styrenes and amines under metal-free conditions has been developed. Various primary amides and secondary amides were formed in moderate yields.
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Cu(II)4L4 coordination-driven molecular container: a reusable visual colorimetric sensor for Ag(I) ions

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4721-4724
DOI: 10.1039/C4CC00118D, CommunicationJian-Ping Ma, Shen-Qing Wang, Chao-Wei Zhao, Hai-Ying Wang, Yu-Bin Dong
A Cu4L4 square-like molecular container which can be a reusable visual sensor for Ag+ is reported. The present results can be a useful stepwise approach for the construction of heterometallic supramolecular complexes with potential applications.
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A colloidal water-stable MOF as a broad-range fluorescent pH sensor via post-synthetic modification

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4711-4713
DOI: 10.1039/C4CC00659C, CommunicationJordi Aguilera-Sigalat, Darren Bradshaw
We report the pH dependent fluorescence of indole-functionalised UiO-66-NH2 across the pH range 1-12.
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Use of thiolated oligonucleotides as anti-fouling diluents in electrochemical peptide-based sensors

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4690-4692
DOI: 10.1039/C4CC01290A, CommunicationAdam McQuistan, Anita J. Zaitouna, Elena Echeverria, Rebecca Y. Lai
E-PB sensors passivated with oligothymine are more specific and selective than sensors passivated with 6-mercapto-1-hexanol only.
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Sensitive detection of polynucleotide kinase using rolling circle amplification-induced chemiluminescence

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4733-4735
DOI: 10.1039/C4CC00256C, CommunicationWei Tang, Guichi Zhu, Chun-yang Zhang
We develop a new chemiluminescence method for the sensitive detection of polynucleotide kinase and screening its inhibitors/activators.
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pH-Responsive and near-infrared-emissive polymer nanoparticles for simultaneous delivery, release, and fluorescence tracking of doxorubicin in vivo

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4699-4702
DOI: 10.1039/C3CC49870K, CommunicationJi-Cheng Yu, Yu-Lei Chen, Yu-Qi Zhang, Xi-Kuang Yao, Cheng-Gen Qian, Jun Huang, Sha Zhu, Xi-Qun Jiang, Qun-Dong Shen, Zhen Gu
pH-Responsive doxorubicin-loaded nanoparticles labelled with near-infrared-emissive conjugated polymers are able to track drug delivery and release at tumor sites in a non-invasive and real-time way.
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A lanthanide based sensor for the time-gated detection of hydrogen sulfide

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4696-4698
DOI: 10.1039/C4CC01095G, CommunicationManuel Tropiano, Stephen Faulkner
A long-lived europium complex capable of sensing sulfide in complex biological media using time gated detection is reported.
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