Chem. Commun.

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Optical bleaching of perovskite (CH3NH3)PbI3 through room-temperature phase transformation induced by ammonia

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1605-1607
DOI: 10.1039/C3CC48522F, CommunicationYixin Zhao, Kai Zhu
Ammonia induces a phase transformation of perovskite (CH3NH3)PbI3, leading to a rapid reversible change in its color from brown to colorless.
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An acido-triggered reversible luminescent and nonlinear optical switch based on a substituted styrylpyridine: EFISH measurements as an unusual method to reveal a protonation-deprotonation NLO contrast

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1608-1610
DOI: 10.1039/C3CC48149B, CommunicationElena Cariati, Claudia Dragonetti, Elena Lucenti, Filippo Nisic, Stefania Righetto, Dominique Roberto, Elisa Tordin
DPVPA as reversible luminescent and NLO switch.
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Functional disruption of HypB, a GTPase of Helicobacter pylori, by bismuth

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1611-1614
DOI: 10.1039/C3CC47644H, CommunicationWei Xia, Hongyan Li, Hongzhe Sun
Bismuth (Bi3+) binds equal molar amounts of HypB from Helicobacter pylori at the conserved metal site, and concomitantly induces the protein dimerization and excess Bi3+ causes further oligomerization of HypB, resulting in HypB GTPase dysfunction.
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A sandwich complex with axial symmetry for harnessing the anisotropy in a prolate erbium(III) ion

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1602-1604
DOI: 10.1039/C3CC48557A, CommunicationJennifer J. Le Roy, Ilia Korobkov, Muralee Murugesu
Magnetic remanence and coercivity of up to 8 K with an energy barrier (Ueff) of 187(1) K, for a unique sandwich type Er(III) single-ion magnet.
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A fluorescence assay that detects long branches in the starch polysaccharide amylopectin

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1530-1532
DOI: 10.1039/C3CC48163H, CommunicationSophie R. Beeren, Ole Hindsgaul
Regions of consecutive [small alpha](1-4)-glucopyranose units in amylopectin are detected by turn-on fluorescence by extraction of amphiphilic probes from fluorescence-quenched spermidine-stabilised micelles.
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Intriguing Diels-Alder products: chiral centres with an added twist

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1599-1601
DOI: 10.1039/C3CC48641A, CommunicationColm Delaney, Sarath D. Perera, Gearoid M. O. Maille, Sylvia M. Draper
Two chiral fluoranthene-based polyaromatics were isolated from a Diels-Alder cycloaddition between two molecules of 7,9-diphenylcyclopenta[a]acenapthylene-8-one.
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Self-assembled multicomponent Pd6 aggregates showing low-humidity proton conduction

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1595-1598
DOI: 10.1039/C3CC47965J, CommunicationDipak Samanta, Partha Sarathi Mukherjee
Two Pd6 aggregates, self-sorted via a multi-component self-assembly process, represent a new generation of materials exhibiting proton conductivity under ambient conditions with activation energy comparable to that of Nafion.
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Rational molecular engineering towards efficient non-fullerene small molecule acceptors for inverted bulk heterojunction organic solar cells

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1591-1594
DOI: 10.1039/C3CC47289B, CommunicationYu-Qing Zheng, Ya-Zhong Dai, Yan Zhou, Jie-Yu Wang, Jian Pei
Two non-fullerene small molecules were designed as acceptors in organic solar cells and both showed high PCEs.
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Better understanding of mechanochemical reactions: Raman monitoring reveals surprisingly simple 'pseudo-fluid' model for a ball milling reaction

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1585-1587
DOI: 10.1039/C3CC47898J, CommunicationXiaohe Ma, Wenbing Yuan, Steven E. J. Bell, Stuart L. James
A kinetic model for mechanochemical for ball milling reactions is proposed based on Raman monitoring.
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Stereocontrolled generation of nucleophilic (Z)- or (E)-[small alpha]-fluoroalkenylchromium reagents via carbon-fluorine bond activation: highly stereoselective synthesis of (E)- or (Z)-[small beta]-fluoroallylic alcohols

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1543-1545
DOI: 10.1039/C3CC47219A, CommunicationTakashi Nihei, Saya Yokotani, Takashi Ishihara, Tsutomu Konno
(E)- or (Z)-[small beta]-fluoroallylic alcohol derivatives were prepared in a highly stereoselective manner via a novel carbon-fluorine bond activation.
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New routes towards reutericyclin analogues

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1588-1590
DOI: 10.1039/C3CC47867J, CommunicationRaymond C. F. Jones, James P. Bullous, Carole C. M. Law, Mark R. J. Elsegood
N-Acylpyrrolo[3,4-c]isoxazoles and N-acyltetramides are prepared as analogues of acyltetramic acid metabolite reutericyclin, which has potential against bacteria including Clostridium difficile.
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Opening an Aladdin's cave: the Suzuki coupling in a room-temperature ionic liquid

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1515-1518
DOI: 10.1039/C3CC44932G, ViewpointNicholas E. Leadbeater
This viewpoint will discuss the impact of the 2000 Chem. Commun. report that the palladium-catalysed Suzuki coupling can be performed quickly and easily in a room-temperature ionic liquid.
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A T7 exonuclease-assisted cyclic enzymatic amplification method coupled with rolling circle amplification: a dual-amplification strategy for sensitive and selective microRNA detection

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1576-1578
DOI: 10.1039/C3CC48707E, CommunicationLiang Cui, Zhi Zhu, Ninghang Lin, Huimin Zhang, Zhichao Guan, Chaoyong James Yang
A T7 exonuclease-assisted cyclic enzymatic amplification method (CEAM) was combined with rolling circle amplification (RCA) to develop a RCA-CEAM dual amplification method for ultrasensitive detection of microRNA with excellent selectivity.
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Highly emissive deoxyguanosine analogue capable of direct visualization of B-Z transition

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1573-1575
DOI: 10.1039/C3CC48297A, CommunicationSoyoung Park, Haruka Otomo, Linjie Zheng, Hiroshi Sugiyama
A 2-aminothieno[3,4-d]pyrimidine G-mimic deoxyribonucleoside, thdG, was synthesized and incorporated readily into oligonucleotides as a versatile fluorescent guanine analogue. We demonstrate that thdG enables the visual detection of Z-DNA successfully based on different [small pi]-stacks of B- and Z-DNA.
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Rationale for the sluggish oxidative addition of aryl halides to Au(I)

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1533-1536
DOI: 10.1039/C3CC48914K, CommunicationMadeleine Livendahl, Charles Goehry, Feliu Maseras, Antonio M. Echavarren
Linear 2-coordinate d10 Au(I) complexes could form Au(III) species by oxidative addition with reasonable energies, although the barriers to access them are prohibitively high.
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Multistate self-assembled micro-morphology transitions controlled by host-guest interactions

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1567-1569
DOI: 10.1039/C3CC48491B, CommunicationQiwei Zhang, Xuyang Yao, Da-Hui Qu, Xiang Ma
Multistate self-assembled micro-morphology transitions controlled by host-guest interactions between bis-sulfonatocalix[4]arene, [gamma]-CD and a ditopic guest.
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Metal-free cascade radical cyclization of 1,6-enynes with aldehydes

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1564-1566
DOI: 10.1039/C3CC48339H, CommunicationJian-Yi Luo, Hui-Liang Hua, Zi-Sheng Chen, Zhao-Zhao Zhou, Yan-Fang Yang, Ping-Xin Zhou, Yu-Tao He, Xue-Yuan Liu, Yong-Min Liang
A new and efficient metal-free cascade cyclization of 1,6-enynes with aldehydes is developed for the synthesis of tricyclic fluorene derivatives.
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A disk-aromatic bowl cluster B30: toward formation of boron buckyballs

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1558-1560
DOI: 10.1039/C3CC48392D, CommunicationTruong Ba Tai, Long Van Duong, Hung Tan Pham, Dang Thi Tuyet Mai, Minh Tho Nguyen
The B30 cluster is a bowl-shape structure, rather than a double-ring tubular form and exhibits disk-aromatic features similar to those of B19- and B202-. It suggests a consistent route for the formation of boron buckyballs such as B80 and B92 from multiple B30 units.
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Efficient synthesis of 1,2-bis(alkoxycarbonyl)pyrazol-3-ones from 2,3-allenoic acids, azodicarboxylates and PPh3

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1537-1539
DOI: 10.1039/C3CC48215D, CommunicationRuizhi Lu, Xin Cheng, Xingliang Zheng, Shengming Ma
The reaction of 2,3-allenoic acids with dialkyl azodicarboxylate in the presence of PPh3 affords 1,2-bis(alkoxycarbonyl)pyrazol-3-ones in moderate yields. A mechanism involving intramolecular Michael addition of the expected 2,3-allenoyl hydrazines has been proposed.
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Sequential formation of N-doped nanohelicenes, nanographenes and nanodomes by surface-assisted chemical (cyclo)dehydrogenation of heteroaromatics

19 January, 2014 - 18:17

Chem. Commun., 2014, 50,1555-1557
DOI: 10.1039/C3CC47399F, CommunicationAnna Lisa Pinardi, Jose Ignacio Martinez, Andrej Jancarik, Irena G. Stara, Ivo Stary, Maria Francisca Lopez, Javier Mendez, Jose Angel Martin-Gago
Stepwise formation of N-doped nanostructures from the same heteroaromatic precursor through subsequent on-surface dehydrogenations on Pt(111).
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