Chem. Commun.

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Multiple GO-SELEX for efficient screening of flexible aptamers

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03953J, CommunicationVan-Thuan Nguyen, Young Seop Kwon, Jae Hoon Kim, Man Bock Gu
We describe a simple, high-speed, high-throughput flexible aptamer screening for a group of small molecules using graphene oxide (simple Multi-GO-SELEX) without immobilizing the targets.
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Ion-based assemblies of planar anion complexes and cationic PtII complexes

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04565C, CommunicationRyo Sekiya, Yusuke Tsutsui, Wookjin Choi, Tsuneaki Sakurai, Shu Seki, Yuya Bando, Hiromitsu Maeda
Because the metallophilicity of attractive PtIIPtII interactions helps in the fabrication of columnar structures, terpyridine-PtII complexes were used as planar counter cationic species for formation of charge-segregated assemblies using [small pi]-conjugated receptor-Cl- complexes as planar anions.
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The simplest method for fabrication of high refractive index polymer-metal oxide hybrids based on a soap-free process

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04471A, CommunicationHirokuni Jintoku, Hirotaka Ihara
We established a new strategy for fabricating high refractive index materials by using the tungsten heteropoly acid.
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Tuneable Fmoc-Phe-(4-X)-Phe-NH2 nanostructures by variable electronic substitution

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04926H, CommunicationCharalampos G. Pappas, Yousef M. Abul-Haija, Angela Flack, Pim W. J. M. Frederix, Rein V. Ulijn
We show enzymatic introduction of non-natural amino acids with different electronic substituents with a dramatic influence on morphology in self-assembled nanostructures.
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Pd nanoparticle concentration dependent self-assembly of Pd@SiO2 nanoparticles into leaching resistant microcubes

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04124K, CommunicationAbheek Datta, Anustup Sadhu, Subhankar Santra, S. M. Shivaprasad, Swadhin K. Mandal, Sayan Bhattacharyya
Leaching resistant Pd-SiO2 microcubes are obtained by self-assembly of Pd@SiO2 nanoparticles only above a threshold [greater-than-or-equal]0.2 wt% Pd.
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Copper-mediated C-H(sp2)/C-H(sp3) coupling of benzoic acid derivatives with ethyl cyanoacetate: an expedient route to an isoquinolinone scaffold

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03837A, CommunicationWei Zhu, Dengyou Zhang, Nan Yang, Hong Liu
An expedient, copper-mediated, direct C-H(sp2)/C-H(sp3) bond coupling of benzoic acid derivatives with ethyl cyanoacetate is disclosed.
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Metal-ligand bifunctional reactivity and catalysis of protic N-heterocyclic carbene and pyrazole complexes featuring [small beta]-NH units

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04457F, Feature ArticleShigeki Kuwata, Takao Ikariya
The metal-ligand bifunctional cooperation of protic N-heterocyclic carbene and pyrazole complexes bearing an NH unit at the position [small beta] to the metal is surveyed.
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Reactions of zirconium amide amidinates with dioxygen. Observation of an unusual peroxo intermediate in the formation of oxo compounds

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04032E, CommunicationAdam C. Lamb, Zheng Lu, Zi-Ling Xue
Reaction of d0 Zr(NMe2)2[MeC(NiPr)2]2 (1) with O2 gives peroxo trimer {([small mu ]-[small eta]2:[small eta]2-O2)Zr[MeC(NiPr)2]2}3 which reacts with the starting material 1 to give oxo dimer {([small mu ]-O)Zr[MeC(NiPr)2]2}2 and its polymer.
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A facile access to a novel NHC-stabilized silyliumylidene ion and C-H activation of phenylacetylene

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC05181E, CommunicationSyed Usman Ahmad, Tibor Szilvasi, Shigeyoshi Inoue
This work presents a facile access to a donor-stabilized monoarylsilyliumylidene ion and its unique reaction with a terminal alkyne.
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Formation of a nickel carbon dioxide adduct and its transformation mediated by a Lewis acid

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04800H, CommunicationYeong-Eun Kim, Jin Kim, Yunho Lee
The first 5-coordinate Ni-CO2 adduct (PPMeP)Ni([small eta]2-CO2) reveals a unique different character in structure and reactivity compared with previous 4-coordinate analogues.
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Fast response and highly selective sensing of amine vapors using a luminescent coordination polymer

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04614E, CommunicationJinlei Chen, Fei-Yan Yi, Hong Yu, Shihui Jiao, Guangsheng Pang, Zhong-Ming Sun
The first Eu-coordination polymer as a sensory material for the detection of amine vapors with high selectivity and rapid response.
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Methoxy functionalisation: exerting synthetic control of the supramolecular and electronic structure of nitrogen-doped nanographenes

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03577A, CommunicationLankani P. Wijesinghe, Buddhie S. Lankage, Gearoid M. O Maille, Sarath D. Perera, Deanne Nolan, Longsheng Wang, Sylvia M. Draper
Demonstrating the chemical control of band gap and supramolecular stacking in four N-doped methoxy-substituted nanographenes.
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Exfoliated layered copper phosphonate showing enhanced adsorption capability towards Pb ions

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03774J, CommunicationWei-Xuan Nie, Song-Song Bao, Dai Zeng, Li-Rong Guo, Li-Min Zheng
Copper 5-(2-bromothienyl)phosphonate (1) with a layered structure can be successfully exfoliated, showing an enhanced adsorption capability to the Pb(II) ions in aqueous solution compared with that of the bulk material.
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Guanidyl-functionalized graphene as a bifunctional adsorbent for selective enrichment of phosphopeptides

30 July, 2014 - 17:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04327H, CommunicationLin-Nan Xu, Li-Ping Li, Liang Jin, Yu Bai, Hu-Wei Liu
This novel bi-functional gfg provides two enriching performances, one is for global phosphopeptides, and the other is for multi-phosphopeptides with consecutive phosphorylated residues.
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The glyco-stereoisomerism effect on hydrogelation of polymers interacting via dynamic covalent bonds

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9779-9782
DOI: 10.1039/C4CC04735D, CommunicationMingchang Lin, Pengfei Sun, Guosong Chen, Ming Jiang
This work explores, for the first time, the stereoisomerism effect of sugar units of glycopolymers on hydrogelation.
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An efficient regioselective hydrodifluoromethylation of unactivated alkenes with TMSCF2CO2Et at ambient temperature

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9749-9752
DOI: 10.1039/C4CC04591B, CommunicationGuobin Ma, Wen Wan, Jialiang Li, Qingyang Hu, Haizhen Jiang, Shizheng Zhu, Jing Wang, Jian Hao
An efficient regioselective hydrodifluoromethylation of diverse unactivated vicinal alkenes is described. The primary mechanistic investigations indicate that a CF2COOEt radical species is involved.
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Rh(III)-Catalyzed synthesis of sultones through C-H activation directed by a sulfonic acid group

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9776-9778
DOI: 10.1039/C4CC03627A, CommunicationZisong Qi, Mei Wang, Xingwei Li
Rh(III)-Catalyzed oxidative coupling of sulfonic acids with alkynes affords sultones in high efficiency.
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Mechanochemical lithiation of layered polysilane

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9761-9764
DOI: 10.1039/C4CC03850A, CommunicationMasataka Ohashi, Hideyuki Nakano, Tetsuya Morishita, Michelle J. S. Spencer, Yuka Ikemoto, Chihiro Yogi, Toshiaki Ohta
Lithiated polysilane was synthesized by the mechanochemical reaction of layered polysilane with metallic lithium. The resulting dark green powder formed a Si-Li bond on the surface and demonstrated electroconductivity.
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A non-aqueous procedure to synthesize amino group bearing nanostructured organic-inorganic hybrid materials

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9753-9756
DOI: 10.1039/C4CC03640A, CommunicationM. Goring, A. Seifert, K. Schreiter, P. Muller, S. Spange
Amino group functionalized organic-inorganic hybrid materials are available in almost quantitative yields by a non-aqueous procedure using 2,2[prime or minute]-spirobi[4H-1,3,2-benzodioxazoiline] and 3-amino-functionalized n-propyl-2-methyl-4H-1,3,2-benzodioxazoilines.
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An efficient ruthenium(IV) catalyst for the selective hydration of nitriles to amides in water under mild conditions

30 July, 2014 - 17:17

Chem. Commun., 2014, 50,9661-9664
DOI: 10.1039/C4CC04058A, CommunicationEder Tomas-Mendivil, Francisco J. Suarez, Josefina Diez, Victorio Cadierno
A ruthenium catalyst able to promote the selective conversion of nitriles to amides in water, at low metal loadings and under mild conditions, is presented.
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