Chem. Commun.

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Multiplex Plasmonic Anti-counterfeiting Security Labels Based on Surface-enhanced Raman Scattering

26 November, 2014 - 22:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08596E, CommunicationYan Cui, In Yee Phang, Yih Hong Lee, Mian Rong Lee, Qi Zhang, Xing Yi Ling
We demonstrate a multiplex plasmonic anti-counterfeiting platform by embedding multiple molecules on a single substrate with superior nanometer scale spectral and spatial resolution. The encoded specific molecular information can only...
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Easy and Quantitative Access to Fe(II) and Fe(III) Diarylalkynyl-phosphine Oxides Featuring [Fe(dppe)Cp*] Endgroups: Terminal P=O Functionality Blocks the Dimerization of the Fe(III) Derivatives

26 November, 2014 - 22:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08993F, CommunicationAyham Tohme, Charles Thomas Hagen, Stephanie Labouille, Arnaud Bondon, Thierry Roisnel, Duncan Carmichael, Frederic Paul
A series of paramagnetic diarylalkynylphosphine oxides 3a-c[PF6] featuring an open-shell [Fe(eta5-dppe)(eta5-C5Me5)]+ endgroup were obtained by oxidation of their neutral Fe(II) parents 3a-c, themselves obtained in a simple and nearly quantitative...
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Gallium complexes with alpha-diimine and phenazine in various reduced states

26 November, 2014 - 22:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04128C, CommunicationYanxia Zhao, Yanyan Liu, Zeyi Wang, Wenhua Xu, Bin Liu, Ji-Hu Su, Biao Wu, Xiao-Juan Yang
Reactions of an alpha-diimine-stabilized "digallane" [Ga2L2] with phenazine (Phz) lead to gallium complexes in which the Phz and alpha-diimine show different reduced forms, demonstrating their noninnocence and diverse coordination modes.
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Efficient Hydration of Alkynes through Acid-Assisted Bronsted Acid Catalysis

26 November, 2014 - 22:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08938C, CommunicationG B Hammond, Bo Xu, Shengzong Liang
The combined acid catalyzed hydration of alkynes is an efficient one-step synthesis of carbonyl compounds. This atom-economical method is effective with a wide range of substrates, and the products are...
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Sulfide Synthesis through Copper-Catalyzed C-S Bonds Formation under Biomolecule-Compatible Conditions

26 November, 2014 - 22:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08367A, CommunicationYonghong Zhang, Yiming Li, Xiao-Mei Zhang, Xuefeng Jiang
We report here an efficient and mild method for constructing C-S bonds. The reactions were carried out with Na2S2O3 as sulfurating reagent, CuSO4 as catalyst, and water as solvent without...
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Concise Synthesis of the Tricyclic Skeleton of Crotobarin and Crotogoudin via a Gold-catalyzed Cycloisomerization Reaction

26 November, 2014 - 22:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C3CC48897G, CommunicationYanxing Jia, Yinliang Guo, Qiang Liu
A concise synthesis of the tricyclic skeleton of (+)-crotobarin and (+)-crotogoudin via gold-catalyzed 1,6-enyne cycloisomerization reaction is reported.
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Plasmonic metal scattering immunoassay by total internal reflection scattering microscopy with nanoscale lateral resolution

26 November, 2014 - 22:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07665F, CommunicationSeungah Lee, Hyunung Yu, Seong Ho Kang
Position estimation by the intensity of a plasmonic metal (i.e., silver) scattering in three dimensions (3D) on gold-nanopatterned chips was introduced to explore precise immunoassays within the evanescent field layer....
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One-step ultrasonic synthesis of graphene quantum dots with high quantum yield and its application in sensing of alkaline phosphatase

26 November, 2014 - 22:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07449A, Communicationxiaojun zhang, Yanhong Zhu, Ling Chen, Guangfeng Wang, hong jiang
With only graphene oxide and KMnO4, the luminescent graphene quantum dots (GQDs) in high quantum yield were prepared by one-step synthesis using ultrasonication, and applied it in the label-free, simple...
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Chemical controls on uranyl citrate speciation and the self-assembly of nanoscale macrocycles and sandwich complexes in aqueous solutions.

26 November, 2014 - 22:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08657K, CommunicationMadeline Basile, Daniel K Unruh, Kyle Gojdas, Erin Flores, Laura Streicher, Tori Forbes
Uranyl citrate forms trimeric species at pH>5.5, but exact structural characteristics of these important oligomers have not previously been reported. Crystallization and structural characterization of the trimers suggests the self-assembly...
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Signal-on Electrochemiluminescent Aptasensor Based on Target Controlled Permeable Films

26 November, 2014 - 22:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07699K, CommunicationLichan Chen, Xiaoting Zeng, Donghwan (Richie) Kim, Yuwu Chi, Abdul Rahim Ferhan, Guonan Chen
A novel permeability gate-based electrochemiluminescent (ECL) aptasensor has been constructed by utilizing target-responsive polyelectrolyte-aptamer film deposited on the solid-state ECL electrode to control the rate of diffusion of a coreactant...
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Light-induced structural evolution of photoswitchable carbohydrate-based surfactant micelles

26 November, 2014 - 22:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC07657E, CommunicationRico F. Tabor, Matthew J. Pottage, Christopher J. Garvey, Brendan L. Wilkinson
We report the light-induced structural evolution of photoswitchable carbohydrate-based surfactant micelles using time-resolved small-angle neutron scattering (TR-SANS), monitoring the structural changes in micellisation in situ over time and demonstrating for the first time the course and implications of this process.
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Application of a nucleophilic boryl complex in the frustrated Lewis pair: activation of H-H, B-H and C[double bond, length as m-dash]C bonds with B(C6F5)3 and boryl-borate lithium

26 November, 2014 - 22:54

Chem. Commun., 2015, Advance Article
DOI: 10.1039/C4CC07658C, CommunicationJunhao Zheng, Yuwen Wang, Zhen Hua Li, Huadong Wang
The frustrated Lewis pair (FLP) comprised of boryl-borate lithium [pinBB(Ph)pin]Li and B(C6F5)3 can efficiently activate H2, HBpin and C2H4.
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Oxidative Radical 1,2-Alkylarylation of Alkenes with -C(sp3)-H Bonds of Acetonitriles Involving 1,2-Aryl Migration

26 November, 2014 - 22:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08902B, CommunicationYang Li, Bang Liu, Hai-Bing Li, Qiuan Wang, Jin-Heng Li
A novel metal-free oxidative 1,2-alkylarylation of unactivated alkenes with the -C(sp3)-H bonds of acetonitriles for the synthesis of 5-oxo-pentanenitriles is presented. In the presence of TBPB (tert-butyl peroxybenzoate), a variety...
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Ni-Catalyzed [small alpha]-Arylation of Esters and Amides with Phenol Derivatives

24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08426H, CommunicationEva Koch, Ryosuke Takise, Armido STUDER, Junichiro Yamaguchi, Kenichiro Itami
A nickel-catalyzed [small alpha]-arylation of esters and amides with phenol derivatives has been accomplished. In the presence of our unique nickel catalyst, prepared in situ from Ni(cod)2 and 3,4-bis(dicyclohexylphosphino)thiophene (dcypt), and...
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Isoselective 3,4-(co)Polymerization of Biorenewable Myrcene Using NSN-Ligated Rare-earth Metal Precursors: Approach to New Elastomer

24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08962F, CommunicationBo Liu, Lei Li, Guangping Sun, Dongtao Liu, Shihui Li, Dongmei Cui
Polymerization of biorenewable myrcene (MY) by using the cationic [small beta]-diimidosulfonate lutetium catalyst in high activity, afforded the unprecedented isotactic 3,4-polymyrcene (PMY) with a low Tg (-42 [degree]C), based on which,...
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Role of Grafted Alkoxybenzylidene Ligand in Silica-Supported Hoveyda-Grubbs-Type Catalysts

24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08627A, CommunicationJian Liang Cheong, Daniel Wong, Song-Gil Lee, Jaehong Lim, Su Seong Lee
Using both circulating flow and batch reaction systems, we explored the role of immobilized alkoxybenzylidene ligands that is to capture and stabilize the active ruthenium species. The bidentate ligands considerably...
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Stepwise combination of NH3 with BH4- in metal borohydride ammoniate

24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08228A, CommunicationYuanzhou Song, Feilong Wu, Xiongfei Zheng, Xiaohua Ma, Fang Fang, Yanhui Guo
Step-wise combination of NH3 with BH4- was found proceeded on AlCl3[round bullet, filled]mNH3/nLiBH4 system. Firstly, only two N-H bonds of the NH3 groups combined with B-H bonds at low temperature. Secondly, the...
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Electrospun nanofibers-A prospective electro-active material for constructing high performance Li-ion batteries

24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07824A, Feature ArticleVanchiappan Aravindan, Sundaramurthy Jayaraman, Yun-Sung Lee, Madhavi Srinivasan, Seeram Ramakrishna, P Suresh Kumar
In the present review, we describe the development of high energy density LIB fabricated with all 1D nanofibers as anode, cathode and separator-cum-electrolyte prepared by electrospinning technique without compromising the...
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Structural requirements for anti-oxidant activity of calix[n]arenes and their associated anti-bacterial activity

24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08576K, CommunicationEmma K Stephens, Yannick Tauran, Anthony W Coleman, Melinda Fitzgerald
Treatment of neural cells with calix[n]arenes featuring sulphonate moieties and linked to Ag nanoparticles results in reduced reactive species. For gram+ bacteria there is an inverse correlation between anti-bacterial activity...
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Aromatic sulfonate anion-induced pseudorotaxanes: Environmentally benign synthesis, selectivity, and structural characterization

24 November, 2014 - 22:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08284B, CommunicationHanu-Yuan Gong, Feng Tang, Brett M Rambo, Rui Cao, Junfeng Xiang, Jonathan L Sessler
Anion-induced molecular threading is an emerging strategy for generating mechanically interlocked molecular architectures. Herein, we report the preparation of two pseudorotaxane structures generated from aromatic sulfonate anions and a tetraimidazolium-containing...
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