Chem. Commun.

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Redox-responsive thermal sensitivity based on a selenium-containing small molecule

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2585-2588
DOI: 10.1039/C3CC49753D, CommunicationYan Ding, Yu Yi, Huaping Xu, Zhiqiang Wang, Xi Zhang
Thermoresponsive spherical assemblies formed by a selenium-containing small molecule exhibit lower critical solution temperature (LCST) behavior in aqueous solution, which can be reversibly switched by mild redox treatment.
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Organometallic carbonyl clusters: a new class of contrast agents for photoacoustic cerebral vascular imaging

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2601-2603
DOI: 10.1039/C3CC48529C, CommunicationKien Voon Kong, Lun-De Liao, Zhiyong Lam, Nitish V. Thakor, Weng Kee Leong, Malini Olivo
The strong photoacoustic signal of a water soluble osmium carbonyl cluster allowed it to be employed as a contrast agent to image the cerebral vasculature of a rat. The high stability and low toxicity of such a compound make it an excellent candidate in such biomedical applications.
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Coupling of tyrosine deprotonation and axial ligand exchange in nitrocytochrome c

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2592-2594
DOI: 10.1039/C3CC47207H, CommunicationDaiana A. Capdevila, Damian Alvarez-Paggi, Maria A. Castro, Veronica Tortora, Veronica Demicheli, Dario A. Estrin, Rafael Radi, Daniel H. Murgida
Nitration of Tyr74 in cytochrome c triggers a Met/Lys ligand exchange that results in a gain-of-peroxidatic function.
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Design of a luminescence pattern via altering the crystal structure and doping ions to create warm white LEDs

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2635-2637
DOI: 10.1039/C3CC47946C, CommunicationWei Lu, Yongchao Jia, Qi Zhao, Wenzhen Lv, Hongpeng You
We have designed a luminescence pattern via controlling the crystal structure and doping ions, to create warm white LEDs phosphors.
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A graphene oxide and exonuclease-aided amplification immuno-sensor for antigen detection

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2679-2681
DOI: 10.1039/C4CC00128A, CommunicationYufei Liu, Ming Luo, Xia Xiang, Chaohui Chen, Xinghu Ji, Lu Chen, Zhike He
A highly sensitive protein biosensor based on Exo III-induced signal amplification, the biotin-streptavidin system and the fluorescence quenching ability of graphene oxide.
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Unstable-Fe-site-induced formation of mesopores in microporous zeolite Y without using organic templates

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2660-2663
DOI: 10.1039/C3CC49007F, CommunicationDongdong Guo, Baojian Shen, Guodong Qi, Liang Zhao, Jun Xu, Feng Deng, Yuchen Qin, Qiaoxia Guo, Shenyong Ren, Xionghou Gao, Song Qin, Baojie Wang, Hongjuan Zhao, Honghai Liu, Xinmei Pang
It is revealed that Fe3+ functioned as unstable-sites in the Fe-NaY zeolite, which promotes deferrization-dealumination to generate intra-crystalline mesopores during steaming.
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Highly enantioselective synthesis of [small alpha]-azido-[small beta]-hydroxy methyl ketones catalyzed by a cooperative proline-guanidinium salt system

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2598-2600
DOI: 10.1039/C3CC49371G, CommunicationAngel Martinez-Castaneda, Kinga Kedziora, Ivan Lavandera, Humberto Rodriguez-Solla, Carmen Concellon, Vicente del Amo
The combined action of (S)-proline and a guanidinium salt permits the first enantioenriched synthesis of [small alpha]-azido-[small beta]-hydroxy methyl ketones.
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A hybrid porous material from a pillar[5]arene and a poly(ionic liquid): selective adsorption of n-alkylene diols

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2595-2597
DOI: 10.1039/C3CC49108K, CommunicationZibin Zhang, Qiang Zhao, Jiayin Yuan, Markus Antonietti, Feihe Huang
A macro-/mesoporous polymeric network was prepared via ionic complexation between a polymerized ionic liquid and carboxylated pillar[5]arene. It was successfully applied as a selective absorbent for n-alklyene diols.
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Binding and activation of small molecules by a quintuply bonded chromium dimer

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2579-2581
DOI: 10.1039/C3CC48746F, CommunicationJingmei Shen, Glenn P. A. Yap, Klaus H. Theopold
A Cr-Cr quintuple bond undergoes [2+n] cycloadditions to generate dimetallacycles retaining Cr-Cr quadruple bonds.
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Rh(III)-Catalyzed intramolecular redox-neutral cyclization of alkenes via C-H activation

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2650-2652
DOI: 10.1039/C4CC00029C, CommunicationZhuangzhi Shi, Melissa Boultadakis-Arapinis, Dennis C. Koester, Frank Glorius
Biologically interesting fused oligocyclic lactams have been prepared via an intramolecular redox-neutral cyclization process.
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Janus molecularly imprinted polymer particles

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2646-2649
DOI: 10.1039/C3CC49586H, CommunicationChuixiu Huang, Xiantao Shen
Janus MIP particles were synthesized via a wax-water Pickering emulsion. The MIP microtransporter concept provided the Janus MIP particles with attractive capabilities for autonomous binding and controlled drug delivery.
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Functional dialkylimidazolium-mediated synthesis of silver nanocrystals with sensitive Hg2+-sensing and efficient catalysis

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2565-2568
DOI: 10.1039/C3CC48121B, CommunicationHucheng Zhang, Lu Ye, Xingang Wang, Fangfang Li, Jianji Wang
Thiol-functionalized dialkylimidazolium bromide was synthesized, and used as a stabilizer to prepare monodisperse silver nanocrystals through a facile one-pot aqueous approach.
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A triphenylamine-based benzoxazole derivative as a high-contrast piezofluorochromic material induced by protonation

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2569-2571
DOI: 10.1039/C3CC49208G, CommunicationPengchong Xue, Peng Chen, Junhui Jia, Qiuxia Xu, Jiabao Sun, Boqi Yao, Zhenqi Zhang, Ran Lu
A triphenylamine-based benzoxazole derivative (BVDP) as a typical D-[small pi]-A molecule could be used as a low contrast piezofluorochromic material with a spectral red-shift of 29 nm. However, when BVDP bound a proton to form BVDP+H, a high contrast piezofluorochromism ([capital Delta][small lambda] = 75 nm) could be observed.
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Autocatalytic one pot orchestration for the synthesis of [small alpha]-arylated, [small alpha]-amino esters

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2632-2634
DOI: 10.1039/C3CC48884E, CommunicationStephane P. Roche, Shyam S. Samanta, Marine M. J. Gosselin
[small alpha]-Arylated, [small alpha]-amino esters are synthesized in one pot, using an AcOH/AcCl autocatalytic system, which promotes simultaneous dehydration-activation before Friedel-Crafts functionalization.
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Observations on transition metal free biaryl coupling: potassium tert-butoxide alone promotes the reaction without diamine or phenanthroline catalysts

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2575-2578
DOI: 10.1039/C3CC49019J, CommunicationJ. Cuthbertson, V. J. Gray, Jonathan D. Wilden
Biaryl coupling of unactivated aromatic systems can be achieved by potassium tert-butoxide alone in the absence of any amine or bipyridine catalyst (1,10-phenanthroline or N,N[prime or minute]-dimethylethylenediamine being the most common).
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Zn-BTC MOFs with active metal sites synthesized via a structure-directing approach for highly efficient carbon conversion

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2624-2627
DOI: 10.1039/C3CC49187K, CommunicationXianqiang Huang, Yifa Chen, Zhengguo Lin, Xiaoqian Ren, Yuna Song, Zhenzhu Xu, Xinmei Dong, Xingguo Li, Changwen Hu, Bo Wang
BIT-101, BIT-102 and BIT-103 have been synthesized via a structure-directing strategy and exhibit extraordinary catalytic performance in the cycloaddition of CO2.
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Reconstitution of OmpF membrane protein on bended lipid bilayers: perforated hexagonal mesophases

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2642-2645
DOI: 10.1039/C3CC49590F, CommunicationAlexandru Zabara, Renata Negrini, Patric Baumann, Ozana Onaca-Fischer, Raffaele Mezzenga
Here we show that reconstitution of pore-forming membrane proteins can also occur on highly curved lipidic bilayers of reverse hexagonal mesophases, for which the mean-curvature is significantly different from zero.
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Synthesis of renewable high-density fuels using cyclopentanone derived from lignocellulose

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2572-2574
DOI: 10.1039/C3CC46588H, CommunicationJinfan Yang, Ning Li, Guangyi Li, Wentao Wang, Aiqin Wang, Xiaodong Wang, Yu Cong, Tao Zhang
A high-density bicyclic hydrocarbon was first synthesized in 80% overall yield by the solvent-free aldol condensation of cyclopentanone followed by hydrodeoxygenation.
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Formal hydration of non-activated terminal olefins using tandem catalysts

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2608-2611
DOI: 10.1039/C3CC48810A, CommunicationYongsheng Yang, Jiayi Guo, Huimin Ng, Zhiyong Chen, Peili Teo
Hydration of terminal olefins to secondary alcohols has been achieved using a Pd(II)/Ru(II) catalyst combination with high selectivity and yields.
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A computational study of the mechanism of the [(salen)Cr + DMAP]-catalyzed formation of cyclic carbonates from CO2 and epoxide

13 February, 2014 - 00:17

Chem. Commun., 2014, 50,2676-2678
DOI: 10.1039/C3CC48769E, CommunicationDebashis Adhikari, SonBinh T. Nguyen, Mu-Hyun Baik
Epoxide and CO2 coupling reactions catalyzed by (salen)CrIIICl have been modeled computationally to contrast a monometallic vs. bimetallic mechanism.
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