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FREE articles for FIGIPAS 2009
A selection of articles describing work related to the topics covered at FIGIPAS are collected here, and these are free for the month of July.
Hot article: Molecular machines changing faces
02 July 2009
Face selective translation of a cyclodextrin ring along an axle has been developed by Japanese scientists.
ChemComm continues to make an impact!
24 June 2009
ChemComm's 2008 impact factor rises to 5.340 - that's a growth of 20.7% over the last 3 years.
Contents list for Chemical Communications, issue 27, 2009
Front cover
Chem. Commun., 2009, 3969
DOI: 10.1039/b911783k

Inside front cover
Chem. Commun., 2009, 3970
DOI: 10.1039/b911784a
Contents and Chemical Science
Chem. Commun., 2009, 3971
DOI: 10.1039/b911785g
Feature Articles
Boryl ligands and their roles in metal-catalysed borylation reactions
Li Dang, Zhenyang Lin and Todd B. Marder,
Chem. Commun., 2009, 3987
DOI: 10.1039/b903098k
Enhanced HTML article available

Boryl ligands are exceptionally strong
-donors which can display nucleophilic behaviour in various catalytic processes.
Metalloporphyrin-based oxidation systems: from biomimetic reactions to application in organic synthesis
Chi-Ming Che and Jie-Sheng Huang,
Chem. Commun., 2009, 3996
DOI: 10.1039/b901221d
Enhanced HTML article available

Ruthenium porphyrins are among the most extensively studied metalloporphyrin oxidation catalysts. This article provides a brief outline of the metalloporphyrin-based oxidation systems and is focused on the oxidation reactions catalyzed by ruthenium porphyrins performed in the author
s laboratory.
Communications
Selective ion probe for Mg2+ based on Au(I)
Au(I) interactions in a tripodal alkynylgold(I) complex with oligoether pendants
Xiaoming He, Eddie Chung-Chin Cheng, Nianyong Zhu and Vivian Wing-Wah Yam,
Chem. Commun., 2009, 4016
DOI: 10.1039/b902690h
Enhanced HTML article available

A simple but novel tripodal alkynylgold(I) complex with oligoether pendants has been synthesized and demonstrated to be a selective ion probe for Mg2+ based on Au(I)
Au(I) interactions.
Fabrication and gas sensing properties of hollow SnO2 hemispheres
Young-Eun Chang, Doo-Young Youn, Guy Ankonina, Dae-Jin Yang, Ho-Gi Kim, Avner Rothschild and Il-Doo Kim,
Chem. Commun., 2009, 4019
DOI: 10.1039/b902542a
Enhanced HTML article available

Close packed arrays of hollow SnO2 hemispheres were synthesized through the combination of colloidal sacrificial templates and physical vapor deposition, leading to a threefold enhancement in the NO2 gas sensitivity of the templated films compared to their non-templated counterparts.
Clickable
elastins: elastin-like polypeptides functionalized with azide or alkyne groups
Rosalie L. M. Teeuwen, Sander S. van Berkel, Tim H. H. van Dulmen, Sanne Schoffelen, Silvie A. Meeuwissen, Han Zuilhof, Frits A. de Wolf and Jan C. M. van Hest,
Chem. Commun., 2009, 4022
DOI: 10.1039/b903903a
Enhanced HTML article available

Elastin-like peptides were functionalized with alkyne or azide groups using molecular biology techniques, and subsequently conjugated to a variety of (bio)molecules.
Color-tunable fluorescent–magnetic core/shell multifunctional nanocrystals
Zhi-Quan Tian, Zhi-Ling Zhang, Jinhao Gao, Bi-Hai Huang, Hai-Yan Xie, Min Xie, Héctor D. Abruña and Dai-Wen Pang,
Chem. Commun., 2009, 4025
DOI: 10.1039/b906149e

Color-tunable fluorescent–magnetic core/shell multifunctional nanocrystals were synthesized by coating a magnetic CoPt core inside a fluorescent CdSe shell. The photoluminescence is tunable by modifying the shell thickness.
Photoactivable bioluminescent probes for imaging luciferase activity
Qing Shao, Tingting Jiang, Gang Ren, Zhen Cheng and Bengang Xing,
Chem. Commun., 2009, 4028
DOI: 10.1039/b908346d

A set of stable and efficient photoactivable bioluminescent probes for imaging luciferase activity has been developed, which displayed robust fluorescent and bioluminescent signals after brief UV illumination. This system will offer new opportunities for real-time monitoring the dynamics of the cellular functions in vitro and in vivo.
Efficient near infrared D–
–A sensitizers with lateral anchoring group for dye-sensitized solar cells
Yan Hao, Xichuan Yang, Jiayan Cong, Haining Tian, Anders Hagfeldt and Licheng Sun,
Chem. Commun., 2009, 4031
DOI: 10.1039/b908396k
Enhanced HTML article available

A new strategy in which the anchoring group is separated from the acceptor groups of D–
–A organic dyes was developed.
One-pot, in situ synthesis of ZnO-carbon nanotube–epoxy resin hybrid nanocomposites
Arántzazu González-Campo, Katherine L. Orchard, Norio Sato, Milo S. P. Shaffer and Charlotte K. Williams,
Chem. Commun., 2009, 4034
DOI: 10.1039/b905353k

This simple, efficient method generates zinc oxide nanoparticle–polymer composites, by hydrolysis of an organometallic zinc precursor in situ within the prepolymer matrix. The same, one-pot strategy generates hybrid, hierarchical structures when combined with carbon nanotubes.
In vitro biosynthesis of bacterial peptidoglycan using D-Cys-containing precursors: fluorescent detection of transglycosylation and transpeptidation
Virginie Vinatier, Carl B. Blakey, Darren Braddick, Benjamin R. G. Johnson, Stephen D. Evans and Timothy D. H. Bugg,
Chem. Commun., 2009, 4037
DOI: 10.1039/b819869a
Enhanced HTML article available

Peptidoglycan precursors containing D-Cys at position 4 were polymerised to form a synthetic peptidoglycan layer, which could be fluorescently labelled.
Cell-based in vivo dual imaging probes using genetically expressed tags and chemical contrast agents
Yuki Hasegawa, Aki Honda, Keitaro Umezawa, Yusuke Niino, Kotaro Oka, Tomohiro Chiba, Sadakazu Aiso, Akihiro Tanimoto, Daniel Citterio and Koji Suzuki,
Chem. Commun., 2009, 4040
DOI: 10.1039/b904055b

We report a method for specifically labelling the surface of cells with two kinds of chemical probes via two genetically expressed tags, and demonstrate the application for in vitro and in vivo dual imaging.
N-Triphenylboryl- and N,N
-bis(triphenylboryl)benzo-2,1,3-telluradiazole
Anthony F. Cozzolino, Alex D. Bain, Stephanie Hanhan and Ignacio Vargas-Baca,
Chem. Commun., 2009, 4043
DOI: 10.1039/b904713a

Triphenylborane adducts of benzo-2,1,3-telluradiazole are isoelectronic and isostructural analogues of N-alkyl-substituted telluradiazolyl cations.
Gold-catalyzed oxidative cleavage of aryl-substituted alkynyl ethers using molecular oxygen. Simultaneous degradation of C–H and single and triple carbon–carbon bonds under ambient conditions
Arindam Das, Rupsha Chaudhuri and Rai-Shung Liu,
Chem. Commun., 2009, 4046
DOI: 10.1039/b908338c
Enhanced HTML article available

We report the gold-catalyzed oxidative cleavage of aryl-substituted alkynyl ethers using molecular oxygen under ambient conditions; the transformation involves a remarkable cleavage of C–H, C–C and C
C bonds simultaneously.
A nanotubular metal–organic framework with permanent porosity: structure analysis and gas sorption studies
Shengqian Ma, Jason M. Simmons, Daqiang Yuan, Jian-Rong Li, Wei Weng, Di-Jia Liu and Hong-Cai Zhou,
Chem. Commun., 2009, 4049
DOI: 10.1039/b906605e

A nanotubular metal–organic framework with permanent porosity was constructed based on a
3-oxo-trinickel basic carboxylate secondary building unit and demonstrates substantial H2 uptake at 77 K.
Ethenylene-bridged periodic mesoporous organosilicas with ultra-large mesopores
Carl Vercaemst, Petra E. de Jongh, Johannes D. Meeldijk, Bart Goderis, Francis Verpoort and Pascal Van Der Voort,
Chem. Commun., 2009, 4052
DOI: 10.1039/b907631j

Isomeric ethenylene-bridged periodic mesoporous organosilicas with ultra-large mesopores, unprecedented pore volumes, and various pore systems are presented.
Straightforward green synthesis of
naked
aqueous silver nanoparticles
Salvatore Giuffrida, Giorgio Ventimiglia and Salvatore Sortino,
Chem. Commun., 2009, 4055
DOI: 10.1039/b907075c

Water-soluble, exceptionally stable,
naked
silver nanoparticles were obtained in a single step by simple decomposition of a commercial silver complex at room temperature without the need of external reducing agents and conventional stabilizing ligands.
Green one-pot assembly of iron-based nanomaterials for the rational design of structure
HoSeok Park, Young-Chul Lee, Bong Gill Choi, Yeong Suk Choi, Ji-Won Yang and Won Hi Hong,
Chem. Commun., 2009, 4058
DOI: 10.1039/b906464h

Green one-pot ionothermal synthesis could delicately manipulate the size and shape of iron oxyhydroxide nanocrystals, even in the aqueous phase, and easily derive a family of iron-based nanomaterials.
Large-scale graphene production by RF-cCVD method
Enkeleda Dervishi, Zhongrui Li, Fumiya Watanabe, Abhijit Biswas, Yang Xu, Alexandru R. Biris, Viney Saini and Alexandru S. Biris,
Chem. Commun., 2009, 4061
DOI: 10.1039/b906323d

This work reports a low-cost facile method for the production of few-layer graphene sheets in large quantities through radio-frequency chemical vapor deposition.
White-light emission from an upconverted emission with an organic triplet sensitizer
Hung-Cheng Chen, Chen-Yen Hung, Kuan-Hsiang Wang, Hsin-Liang Chen, W. S. Fann, Fan-Ching Chien, Peilin Chen, Tashin J. Chow, Chao-Ping Hsu and Shih-Sheng Sun,
Chem. Commun., 2009, 4064
DOI: 10.1039/b905572j

An energy upconversion system based on triplet–triplet annihilation exploiting an organic triplet sensitizer is devised and has achieved a white-light emission with a low power laser excitation.
A new C–C bond forming annulation reaction leading to pH switchable heterocycles
Philip J. Kitson, Alexis D. C. Parenty, Craig J. Richmond, De-Liang Long and Leroy Cronin,
Chem. Commun., 2009, 4067
DOI: 10.1039/b905383b

A C–C bond forming reaction resulting from the
-addition of carbon based nucleophiles to N-bromoethyl phenanthridinium leads to the formation of 2,3-dihydro-12H-pyrrolo[1,2-f]phenanthridine-based derivatives which undergo reversible ring-opening and ring-closing processes under pH control.
Controlled polymerization and self-assembly of a supramolecular star polymer with a guanosine quadruplex core
Asawin Likhitsup, Shan Yu, Yeap-Hung Ng, Christina L. L. Chai and Eric Kwok Wai Tam,
Chem. Commun., 2009, 4070
DOI: 10.1039/b904867g

A novel supramolecular star polymer is reported, which can be prepared either from atom-transfer radical polymerization (ATRP) of a self-assembled initiator or from self-assembly of a guanosine-capped linear polymer.
Facile synthetic strategy for efficient and multi-color fluorescent BCNO nanocrystals
Xiaofeng Liu, Song Ye, Yanbo Qiao, Guoping Dong, Qiang Zhang and Jianrong Qiu,
Chem. Commun., 2009, 4073
DOI: 10.1039/b904567h

A facile strategy based on the reaction of urea and boric acid is developed for the synthesis of toxicity-free BCNO nanocrystals containing carbon impurities and which exhibit efficient multi-color fluorescence under both single-photon and two-photon excitation.
Guest replacement in a flexible single-crystal host by mixing the surrounding gas
Satoshi Takamizawa and Ryosuke Miyake,
Chem. Commun., 2009, 4076
DOI: 10.1039/b904160e

The adsorption behavior of a single-crystal host [Cu2(bza)4(pyz)]n under vapor was studied by adsorption measurements and single-crystal X-ray analyses, demonstrating the sharp replacement of the included guest by mixing the surrounding vapor.
Supramolecular architecture-directed synthesis of a reactive and purely inorganic ladder polyhydrosilsesquioxane
Zhongjie Ren, Xinyu Cao, Ping Xie, Rongben Zhang, Shouke Yan and Yongmei Ma,
Chem. Commun., 2009, 4079
DOI: 10.1039/b904057a

A perfect, reactive, purely inorganic ladder polyhydrosilsesquioxane ( H-LPSQ) was prepared by supramolecular architecture-directed synthesis and the reactivity and ladder regularity was characterized and confirmed by Si NMR, X-ray diffraction and other techniques.
A bimetallic endohedral fullerene: PrSc@C80
Simon R. Plant, Tsz Cheong Ng, Jamie H. Warner, Géraldine Dantelle, Arzhang Ardavan, G. Andrew D. Briggs and Kyriakos Porfyrakis,
Chem. Commun., 2009, 4082
DOI: 10.1039/b902520k

A novel bimetallic endohedral fullerene, PrSc@C80, has been synthesized and isolated in high purity using an efficient purification scheme. This paves the way for a whole family of bimetallic endohedral fullerenes in useful quantities.
Bimodal three-membered valence tautomerism of an alkyl chain-functionalized manganese dioxolene complex
Daisuke Kiriya, Kohei Nakamura, Ho-Chol Chang and Susumu Kitagawa,
Chem. Commun., 2009, 4085
DOI: 10.1039/b901939a

A novel alkyl chain-functionalized manganese complex with dioxolene ligands shows a bimodal three-membered valence tautomerism, one of which synchronizes with a cooperative solid–melt phase transition and the other occurs in the melt noncooperatively.
Evidence of asymmetric cation solvation from the instability of [Pb(H2O)n]2+ complexes
Keri McQuinn, Fraser Hof, J. Scott McIndoe, Xiaojing Chen, Guohua Wu and Anthony J. Stace,
Chem. Commun., 2009, 4088
DOI: 10.1039/b901368g

A study of [Pb(H2O)n]2+ complexes suggests that the stereochemistry of Pb2+ is responsible for the unusually large number of water molecules (eleven) required to stabilize the ion against charge (proton) transfer.
Unexpected fluorescent behavior of a 4-amino-1,8-naphthalimide derived
-cyclodextrin: conformation analysis and sensing properties
Cheng Zhong, Tong Mu, Lei Wang, Enqin Fu and Jingui Qin,
Chem. Commun., 2009, 4091
DOI: 10.1039/b902132a

A new fluorescent cyclodextrin shows strong fluorescence enhancement upon binding of organic molecules.
Highly sensitive mutation detection based on digital amplification coupled with hydrogel bead-array
Huan Huang, Zongtai Qi, Lili Deng, Guohua Zhou, Tomoharu Kajiyama and Hideki Kambara,
Chem. Commun., 2009, 4094
DOI: 10.1039/b902196e
Enhanced HTML article available

Low levels of mutants were detected by coupling microbead-based emPCR with hydrogel bead-array for digitally amplifying DNAs in water-in-oil emulsions and digitally counting the beads hybridized with target-specific probes labeled with different dyes.
Biaryl polyamides as a new class of DNA quadruplex-binding ligands
Khondaker M. Rahman, Anthony P. Reszka, Mekala Gunaratnam, Shozeb M. Haider, Philip W. Howard, Keith R. Fox, Stephen Neidle and David E. Thurston,
Chem. Commun., 2009, 4097
DOI: 10.1039/b902359c

A novel class of biaryl polyamides selectively stabilize G-quadruplex versus duplex DNA, and show significant cytotoxicity in tumour cell lines. The shape of the ligands allows them to stack against a terminal G-quartet.
Self-assembly of peptide-based multi-colour gels triggered by up-conversion rare earth nanoparticles
Junchen Wu, Qiwei Tian, He Hu, Qian Xia, Ying Zou, Fuyou Li, Tao Yi and Chunhui Huang,
Chem. Commun., 2009, 4100
DOI: 10.1039/b907517h

UCNPs (NaYF4) were efficiently converted to a self-assembled network of a peptide-based gelator, thus producing a hybrid multi-colour system through excitation by NIR light.
DNAzyme catalytic beacon sensors that resist temperature-dependent variations
Nandini Nagraj, Juewen Liu, Stephanie Sterling, Jenny Wu and Yi Lu,
Chem. Commun., 2009, 4103
DOI: 10.1039/b903059j

The temperature-dependent variability of a Pb2+-specific 8–17E DNAzyme catalytic beacon sensor has been addressed through the introduction of mismatches in the DNAzyme, and the resulting sensors resist temperature-dependent variations from 4 to 30 °C.
Construction, DNA wrapping and cleavage of a carbon nanotube–polypseudorotaxane conjugate
Yong Chen, Lu Yu, Xi-Zeng Feng, Sen Hou and Yu Liu,
Chem. Commun., 2009, 4106
DOI: 10.1039/b906794a

A supramolecular architecture was constructed by non-covalently wrapping cyclodextrin-based polypseudorotaxanes on single wall carbon nanotubes, which showed good abilities in wrapping and cleaving double-stranded DNA.
Library assembly of mono-, di- and tri-O-sulfated
-D-xylopyranosides; effect of O-sulfation on pyranose ring conformation
Takehiro Nagatsuka, Hirotaka Uzawa and Yoshihiro Nishida,
Chem. Commun., 2009, 4109
DOI: 10.1039/b907059a

With sulfatase-catalyzed de-O-sulfations, a series of O-sulfated p-nitrophenyl
-D-xylopyranosides were assembled and applied to 1H NMR studies to examine the effect of O-sulfate groups on the equilibration between pyranose 4C1 and 1C4 conformations.
A heterogeneous Ru/CeO2 catalyst effective for transfer-allylation from homoallyl alcohols to aldehydes
Hiroki Miura, Kenji Wada, Saburo Hosokawa, Masahiro Sai, Teruyuki Kondo and Masashi Inoue,
Chem. Commun., 2009, 4112
DOI: 10.1039/b901830a
Enhanced HTML article available

A simple heterogeneous Ru/CeO2 catalyst was found to be effective for transfer-allylation from homoallyl alcohols to aldehydes, followed by isomerization to give the saturated ketones in high yields.
Stereocontrolled lactide polymerisation determined by the nuclearity of the yttrium initiator
Rachel H. Platel, Andrew J. P. White and Charlotte K. Williams,
Chem. Commun., 2009, 4115
DOI: 10.1039/b903784e

Two very rapid yttrium initiators for lactide polymerisation are reported; the nuclearity (monomer vs. dimer) of the initiator controls the stereochemistry of the polylactide produced.
Generation of potent and selective kinase inhibitors by combinatorial biosynthesis of glycosylated indolocarbazoles
César Sánchez, Aaroa P. Salas, Alfredo F. Braña, Martina Palomino, Antonio Pineda-Lucena, Rodrigo J. Carbajo, Carmen Méndez, Francisco Moris and José A. Salas,
Chem. Commun., 2009, 4118
DOI: 10.1039/b905068j

Novel glycosylated indolocarbazoles were generated by combinatorial biosynthesis and tested against a panel of kinases, the most selective being two compounds specifically targeting kinases Ikkb and JAK2.
Tailoring carbon nanotube surfaces with glyconanorings: new bionanomaterials with specific lectin affinity
Noureddine Khiar, Manuel Pernia Leal, Rachid Baati, Christine Ruhlmann, Charles Mioskowski, Patrick Schultz and Inmaculada Fernández,
Chem. Commun., 2009, 4121
DOI: 10.1039/b904717d

The self organization and photopolymerization of neutral diacetylene-based glycolipids onto carbon nanotube surfaces gave stable, water-soluble nanoconstructs that could engage in specific ligand–lectin interactions.
Copper-catalyzed aerobic phosphonation of sp3
C–H bonds
Olivier Baslé and Chao-Jun Li,
Chem. Commun., 2009, 4124
DOI: 10.1039/b905275e

An efficient cross-dehydrogenative-coupling (CDC) between sp3
C–H and H–P bonds was developed using copper salt as catalyst and molecular oxygen as terminal oxidant. This new methodology provides an easy access to biologically important
-aminophosphonates.
Sonopotential: a new concept in electrochemistry
Elena Marchante, Teresa Lana-Villarreal, Verónica Sáez, José González-García and Roberto Gómez,
Chem. Commun., 2009, 4127
DOI: 10.1039/b908094e

The application of ultrasound to a solution in contact with a semiconductor electrode leads to a change in its open circuit potential (sonopotential) sensitive to both ultrasonic power and solution composition.
Back matter
Chem. Commun., 2009, 4130
DOI: 10.1039/b911843h
Back cover
Chem. Commun., 2009, 4131
DOI: 10.1039/b911786p




