Chem. Commun.

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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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A two-ring interlocked DNA catenane rotor undergoing switchable transitions across three states

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4717-4720
DOI: 10.1039/C4CC00880D, CommunicationXiu-Juan Qi, Chun-Hua Lu, Alessandro Cecconello, Huang-Hao Yang, Itamar Willner
Fluorophore-quencher or Au nanoparticles-fluorophore conjugates probe the cyclic switchable reconfiguration of a DNA catenane rotor across three states.
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Glycans in pathogenic bacteria - potential for targeted covalent therapeutics and imaging agents

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4659-4673
DOI: 10.1039/C4CC00660G, Feature ArticleVan N. Tra, Danielle H. Dube
Distinctive bacterial glycans can be metabolically labeled and covalently targeted to form the basis of therapeutic and diagnostic strategies.
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Uncommon patterns in Nafion films loaded with silver nanoparticles

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4693-4695
DOI: 10.1039/C4CC01285B, CommunicationBerta Domenech, Maria Munoz, Dmitri N. Muraviev, Jorge Macanas
The synthesis of Ag-NPs inside Nafion produced unexpected patterns that can reveal the real morphology of the polymer.
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Organic-free colloidal semiconductor nanocrystals as luminescent sensors for metal ions and nitroaromatic explosives

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4743-4746
DOI: 10.1039/C4CC00829D, CommunicationAbhishek Swarnkar, G. Shiva Shanker, Angshuman Nag
Organic-free colloidal semiconductor nanocrystals with an exposed surface act as generic luminescent sensors for toxic Cd2+ ions and explosive 2,4,6-trinitrophenol.
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Palladium-catalyzed R2(O)P directed C(sp2)-H acetoxylation

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4686-4689
DOI: 10.1039/C4CC01238K, CommunicationHeng Zhang, Rong-Bin Hu, Xiao-Yu Zhang, Shi-Xia Li, Shang-Dong Yang
A novel and efficient Pd-catalyzed C-H acetoxylation is described. The approach uses R2(O)P as a directing group to synthesize various substituted 2[prime or minute]-phosphoryl biphenyl-2-OAc compounds.
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"Click"-extended nitrogen-rich metal-organic frameworks and their high performance in CO2-selective capture

10 April, 2014 - 14:17

Chem. Commun., 2014, 50,4683-4685
DOI: 10.1039/C3CC49457H, CommunicationPei-Zhou Li, Xiao-Jun Wang, Kang Zhang, Anjaiah Nalaparaju, Ruyi Zou, Ruqiang Zou, Jianwen Jiang, Yanli Zhao
"Click"-extended metal-organic frameworks incorporating CO2-philic exposed metal sites and nitrogen-rich triazole units exhibit high performance in CO2-selective capture.
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