Chem. Commun.

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Copper-Catalyzed Intermolecular Azidocyanation of Aryl Alkenes

22 July, 2014 - 15:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04640D, CommunicationLi Xu, Xue-Qing Mou, Zhi-Min Chen, Shao-Hua Wang
A copper-catalyzed Markovnikov-type intermolecular azidocyanation of aryl alkenes has been developed to give a series of [small alpha]-azido-propanenitrile in moderate to good yields. This method might provide a potential strategy for...
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Guest-induced supramolecular chirality in a ditopic azoprobe-cyclodextrin complex in water

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04227A, CommunicationKentaro Nonaka, Mai Yamaguchi, Masashi Yasui, Shoji Fujiwara, Takeshi Hashimoto, Takashi Hayashita
The novel supramolecular sensors induced by the clockwise twisted structures due to multi-point recognition in water.
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A Novel Single-Side Azobenzene-Grafted Anderson-Type Polyoxometalate for Recognition-Induced Chiral Migration

22 July, 2014 - 15:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04442H, CommunicationLixin Wu, Bin Zhang, Liang Yue, Yang Wang, Yang Yang
A three-component supramolecular hybrid system based on host-guest recognition and electrostatic interaction has been realized for consecutive chiral transfer from an alpha-cyclodextrin to cationic dyes via the bridge of a...
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Molecular Doping of Graphene as Metal-free Electrocatalyst for Oxygen Reduction Reaction

22 July, 2014 - 15:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05055J, CommunicationShuangyin Wang, Shuo Dou, Anli Shen, Li Tao
In this work, we successfully, for the first time, realize the molecular doping of graphene as metal-free electrocatalysts for oxygen reduction reaction. The doped small molecule onto graphene could induce...
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Bio-specific and bio-orthogonal chemistries to switch-off the quencher of a FRET-based fluorescent probe: application to living-cell biothiol imaging

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03548H, CommunicationC. Egloff, S. A. Jacques, M. Nothisen, D. Weltin, C. Calligaro, M. Mosser, J.-S. Remy, A. Wagner
A quencher sensitive to both a biological metabolite (biothiols) and a bio-orthogonal reagent (dithionite) was developed.
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Regioselective alkylation of a methylene group via meta-bridging of calix[4]arenes

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04356A, CommunicationPetr Slavik, Hana Dvorakova, Vaclav Eigner, Pavel Lhotak
The presence of a fluorene moiety possessing acidic CH2 protons enables the regio- and stereo-selective alkylation of calixarenes at a specific position.
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Organic-inorganic mixed-valence systems with strongly-coupled triarylamine and cyclometalated osmium

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04268A, CommunicationHai-Jing Nie, Jiang-Yang Shao, Chang-Jiang Yao, Yu-Wu Zhong
Organic-inorganic mixed-valence systems with strongly-coupled triarylamine and cyclometalated osmium and redox-switchable NIR absorptions have been developed.
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Adaptive behavior of a redox-active gallium carbenoid in complexes with molybdenum

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04019H, CommunicationIgor L. Fedushkin, Vladimir G. Sokolov, Alexander V. Piskunov, Valentine M. Makarov, Eugeny V. Baranov, Gleb A. Abakumov
A gallium-nitrogen heterocycle derived from 1,2-bis(imino)acenaphthene may serve either as a neutral or an anionic two-electron donor depending on the electronic state of the transition metal.
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Imaging, photophysical properties and DFT calculations of manganese blue (barium manganate(VI) sulphate) - a modern pigment

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC01986E, CommunicationGianluca Accorsi, Giovanni Verri, Angela Acocella, Francesco Zerbetto, Giovanni Lerario, Giuseppe Gigli, David Saunders, Rachel Billinge
Photophysical properties, DFT calculations and imaging studies of manganese blue as analytical tools to record the spatial distribution of the pigment in works of art.
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Synthesis, solution-processed thin film transistors and solid solutions of silylethynylated diazatetracenes

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04627G, CommunicationXiaomin Xu, Bowen Shan, Sergii Kalytchuk, Minghua Xie, Shuaijun Yang, Danqing Liu, Stephen V. Kershaw, Qian Miao
Silylethynylated diazatetracenes function as solution-processed n-type semiconductors with a field effect mobility of 0.65 cm2 V-1 s-1, and co-crystallize with silylethynylated tetracene forming solid solutions.
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Mesityllithium and p-(dimethylamino)phenyllithium for the selective alternate trilithiation of the hexaphenylbenzene framework

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04520C, CommunicationTatsuo Kojima, Shuichi Hiraoka
Mesityllithium and p-(dimethylamino)phenyllithium are new valuable lithiating reagents for the selective alternate trilithiation of the hexaphenylbenzene framework.
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A one-pot, three-component reaction for the synthesis of novel 7-arylbenzo[c]acridine-5,6-diones

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03079F, CommunicationShivani Mahajan, Sadhika Khullar, Sanjay K. Mandal, Inder Pal Singh
A one pot domino protocol for an efficient synthesis of 7-arylbenzo[c]acridine-5,6-diones, with a novel nucleus, has been developed by reacting 2-hydroxynaphthalene-1,4-dione, aromatic aldehydes and aromatic amines using environmentally benevolent p-toluene sulphonic acid as a catalyst.
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The ring opening reaction of 1,3-dithiol-2-one systems is fully reversible

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04414B, CommunicationAshta Chandra Ghosh, Jakob Klaus Reinhardt, Markus Karl Kindermann, Carola Schulzke
The deprotection of a common precursor moiety in dithiolene chemistry was discovered to be fully reversible, which, besides being relevant for researchers working in very different fields with these non-innocent ligand systems, may even have an impact on CO2 housekeeping, as the deprotected ligand acts as an efficient trap.
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Thin films of spin-crossover coordination polymers with large thermal hysteresis loops prepared by nanoparticle spin coating

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04123B, CommunicationDaisuke Tanaka, Naoki Aketa, Hirofumi Tanaka, Takashi Tamaki, Tomoko Inose, Tomoki Akai, Hirotaka Toyama, Osami Sakata, Hiroo Tajiri, Takuji Ogawa
Spin-crossover nanoparticles form homogeneous thin films on substrates, which show abrupt spin transitions with large thermal hysteresis loops.
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Ammonium betaines: efficient ionic nucleophilic catalysts for the ring-opening polymerization of L-lactide and cyclic carbonates

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03347G, CommunicationBrieuc Guillerm, Vincent Lemaur, Jerome Cornil, Roberto Lazzaroni, Philippe Dubois, Olivier Coulembier
Ammonium betaines: the missing piece between hydrogen-bonding and nucleophilic-based ROP catalysts.
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Ligand-controlled divergent formation of alkenyl- or allylboronates catalyzed by Pd, and synthetic applications

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC04092A, CommunicationAlicia Martos-Redruejo, Ruth Lopez-Duran, Elena Bunuel, Diego J. Cardenas
Pd-catalysed reactions of allyl carbonates containing alkynes with B2(pin)2 afford either alkenylboronates by cascade borylative cyclisation, or allylboronates. The reaction outcome is controlled by a suitable choice of ligands. Boronates have been applied to a number of synthetic applications.
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Structural elucidation of foldamers with no long range conformational order

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03822C, CommunicationMayumi Kudo, Victor Maurizot, Hyuma Masu, Aya Tanatani, Ivan Huc
How do partly folded foldamers look like?
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A saponification-triggered gelation of ester-based Zn(II) complex through conformational transformations

22 July, 2014 - 15:17

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03537B, CommunicationAshish Kumar, Mrigendra Dubey, Amit Kumar, Daya Shankar Pandey
Novel saponification-triggered gelation of an ester-based bis-salen Zn(II) complex (1) has been described. Strategic structural modifications in 1 by NaOH, tunes dipolar-/[small pi]-interactions leading to J-aggregation, in turn creation of an inorganic gel material (IGM).
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Stepwise modulation of the electron-donating strength of ancillary ligands: understanding the AIE mechanism of cationic iridium(III) complexes

22 July, 2014 - 15:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC03423F, CommunicationYong Wu, haizhu sun, Hongtao Cao, Haibin Li, Guogang Shan, Yu-Ai Duan, Yun Geng, Zhong-Min Su, Yi Liao
Combining the experimental and computational study, AIE mechanism for cationic Ir(III) complexes with triazole-pyridine type ligand has been deciphered for the first time. Larger structural relaxation and weak emissive excited-state...
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Excited state electron transfer after visible light absorption by the Co(I) state of Vitamin B12

22 July, 2014 - 15:17
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC02221A, CommunicationDarren Achey, Erinn C Brigham, Brian N DiMarco, Gerald John Meyer
The first example of excited state electron transfer from cob(I)alamin is reported herein. Vitamin B12 was anchored to a mesoporous TiO2 thin film and electrochemically reduced to the cob(I)alamin form....
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