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Contents list for Chemical Communications, issue 20, 2008
Front cover
Chem. Commun., 2008, 2277
DOI: 10.1039/b806461j
Contents
Chem. Commun., 2008, 2279
DOI: 10.1039/b806462h
Feature Article
para-Acylcalix[n]arenes: from molecular to macroscopic assemblies
Anthony W. Coleman, Said Jebors, Patrick Shahgaldian, Gennady S. Ananchenko and John A. Ripmeester,
Chem. Commun., 2008, 2291
DOI: 10.1039/b717495k
The para-acylcalix[n]arenes possess a very rich capacity to self-assemble into a wide variety of structures and sizes ranging from molecular assemblies through dimeric capsules, molecular sheets to nanoparticles.
Communications
Directing two-dimensional molecular crystallization using guest templates
Matthew Blunt, Xiang Lin, Maria del Carmen Gimenez-Lopez, Martin Schröder, Neil R. Champness and Peter H. Beton,
Chem. Commun., 2008, 2304
DOI: 10.1039/b801267a
Enhanced HTML article available
The use of a coronene guest template directs the formation of a 2D Kagomé network in preference to alternative close packed and parallel hydrogen-bonded structures of tetracarboxylic acid tectons self-assembled from solution on a graphite surface.
DNA that is dispersed in the liquid crystalline phases of phospholipids is actively transcribed
Josephine Corsi, Marcus K. Dymond, Oscar Ces, Joscha Muck, Daniele Zink and George S. Attard,
Chem. Commun., 2008, 2307
DOI: 10.1039/b801199k Enhanced HTML article available
Optical texture of the HII phase of DOPE containing lin-T7-Luc DNA. This is the first observation of transcription of DNA that is confined within the aqueous domains of a lyotropic liquid crystalline phase.
An ultrasensitive method: surface-enhanced Raman scattering of Ag nanoparticles from 
-silver vanadate and copper
Ming-Wang Shao, Lei Lu, Hong Wang, Sheng Wang, Ming-Liang Zhang, Dorothy-Duo-Duo Ma and Shuit-Tong Lee,
Chem. Commun., 2008, 2310
DOI: 10.1039/b802405g
Ultrasensitive surface-enhanced Raman scattering signals were observed on Ag nanoparticles from -silver vanadate and copper with low concentrations of four typical analytes.
Indium(I) iodide-catalyzed regio- and diastereoselective formal 
-addition of an -methylallylboronate to N-acylhydrazones
Sh
Kobayashi, Hideyuki Konishi and Uwe Schneider,
Chem. Commun., 2008, 2313
DOI: 10.1039/b802153h
Indium(I)-catalyzed addition of an -methylallylboronate to N-acylhydrazones proceeded smoothly to give formal -adducts with high anti-selectivity.
Partial oxidations with NO2 catalyzed by large gold particles
Mark Turner, Owain P. H. Vaughan and Richard M. Lambert,
Chem. Commun., 2008, 2316
DOI: 10.1039/b803828g Enhanced HTML article available
Large gold particles catalyze alkene epoxidation by NO2 under mild conditions, oxygen adatoms being the likely active species.
A tetra-substituted chrysene: orientation of multiple electrophilic substitution and use of a tetra-substituted chrysene as a blue emitter for OLEDs
Alex S. Ionkin, William J. Marshall, Brian M. Fish, Lois M. Bryman and Ying Wang,
Chem. Commun., 2008, 2319
DOI: 10.1039/b715386d Enhanced HTML article available
The first tetra-substituted non-fused chrysene was synthesized and incorporated in an OLED that shows blue electroluminescence at 450 nm, with radiance of 500 cd m-2.
Spectral observation of conversion between ionized vs. non-ionized proton-coupled electron transfer interfaces
Elizabeth R. Young, Joel Rosenthal and Daniel G. Nocera,
Chem. Commun., 2008, 2322
DOI: 10.1039/b717747j
The balance between the ionized and non-ionized tautomers of an amidinium–carboxylate interface is reported as the pKas of the carboxylic acid binding moieties are varied.
A recyclable copper(II) catalyst for the annulation of phenols with 1,3-dienes
Luis A. Adrio and King Kuok (Mimi) Hii,
Chem. Commun., 2008, 2325
DOI: 10.1039/b719465j
Cu(OTf)2 and 2,2
-bipyridine form an air- and moisture-stable catalyst for the annulation reaction between phenol/naphthol with 1,3-dienes, and can be recycled at least four times without any loss of catalytic activity.
Three-metal-center spin interactions through the intercalation of metal azaporphines and porphines into an organic pillared coordination box
Kosuke Ono, Michito Yoshizawa, Tatsuhisa Kato and Makoto Fujita,
Chem. Commun., 2008, 2328
DOI: 10.1039/b801701h
Discrete homo Cu–Cu–Cu and hetero Cu–Pd–Cu or Cu–Co–Cu metal arrays are prepared within an organic-pillared coordination box by inserting M(II)-azaporphine/porphine cartridges (M = Cu(II), Pd(II) or Co(II)), where the metal arrays show unique spin interactions in ESR: in particular, 
ms = 3 for the Cu–Cu–Cu array.
Quantum dot probes for bacteria distinguish Escherichia coli mutants and permit in vivo imaging
W. Matthew Leevy, Timothy N. Lambert, James R. Johnson, Joshua Morris and Bradley D. Smith,
Chem. Commun., 2008, 2331
DOI: 10.1039/b803590c Enhanced HTML article available
Fluorescent quantum dots coated with zinc(II)-dipicolylamine coordination complexes can selectively stain a rough Escherichia coli mutant that lacks an O-antigen element and permit optical imaging in a mouse leg infection model.
Direct synthesis of bicyclic guanidines through unprecedented palladium(II) catalysed diamination with copper chloride as oxidant
Claas H. Hövelmann, Jan Streuff, Lydia Brelot and Kilian Muñiz,
Chem. Commun., 2008, 2334
DOI: 10.1039/b719479j Enhanced HTML article available
Palladium catalysed intramolecular guanidine transfer to alkenes can be accomplished with copper chloride as the oxidant to give bicyclic guanidines with complete selectivity and in high yields.
Component exchange as a synthetically advantageous strategy for the preparation of bicyclic cage compounds
Mateo Alajarín, José Berná, Carmen López-Leonardo and Jonathan W. Steed,
Chem. Commun., 2008, 2337
DOI: 10.1039/b801299g
Macrobicyclic triphosphazides are able to reversibly exchange one of their tripodal components by means of a dynamic disassembly–reassembly process. Surprisingly this strategy provides better yields of cage compounds than a direct tripod–tripod coupling.
A designed metal–organic framework based on a metal–organic polyhedron
Yang Zou, Mira Park, Seunghee Hong and Myoung Soo Lah,
Chem. Commun., 2008, 2340
DOI: 10.1039/b801103f
A C3 symmetric ligand has been used to construct a (3,24)-connected metal–organic framework, where metal–organic cuboctahedra have been incorporated into a covalently networked cubic close packing arrangement, which led to superoctahedral and supertetrahedral cavities.
Chiral tertiary 2-furyl alcohols: diversified key intermediates to bioactive compounds. Their enantioselective synthesis via (2-furyl)aluminium addition to ketones catalyzed by a titanium catalyst of (S)-BINOL
Kuo-Hui Wu, Da-Wei Chuang, Chien-An Chen and Han-Mou Gau,
Chem. Commun., 2008, 2343
DOI: 10.1039/b802441c
Novel asymmetric 2-furyl additions to aromatic ketones and one ,-unsaturated ketone are reported to afford tertiary furyl alcohols in enantioselectivities of 87–93% ee.
Addition polymerization of 1,1-dimesitylneopentylgermene: synthesis of a polygermene
Laura C. Pavelka, Simon J. Holder and Kim M. Baines,
Chem. Commun., 2008, 2346
DOI: 10.1039/b801762j
A new polymer with an alternating germanium–carbon backbone has been synthesized from 1,1-dimesitylneopentylgermene via addition polymerization using an anionic initiator.
Formation of bicyclic pyrroles from the catalytic coupling reaction of 2,5-disubstituted pyrroles with terminal alkynes, involving the activation of multiple C–H bonds
Chae S. Yi and Jie Zhang,
Chem. Commun., 2008, 2349
DOI: 10.1039/b804263b
Substituted bicyclic pyrroles are produced directly from the coupling reaction of pyrroles with terminal alkynes, involving the activation of multiple C–H bonds and regioselective cyclisation.
Borononucleotides: synthesis, and formation of a new reversible boronate internucleosidic linkage
Delphine Luvino, Carine Baraguey, Michael Smietana and Jean-Jacques Vasseur,
Chem. Commun., 2008, 2352
DOI: 10.1039/b802098a Enhanced HTML article available
The synthesis of a borononucleotide analogue of thymidine and its association towards the formation of new borono-linked dimers is described.
9-Thiourea Cinchona alkaloid supported on mesoporous silica as a highly enantioselective, recyclable heterogeneous asymmetric catalyst
Peng Yu, Jing He and Canxiong Guo,
Chem. Commun., 2008, 2355
DOI: 10.1039/b800640g
A highly enantioselective and readily recycled asymmetric catalyst was achieved by immobilizing 9-thiourea Cinchona alkaloid in the nano-sized channels of SBA-15 through a bottom–up approach with a mercapto group as a linker.
Chiral dendrimer encapsulated Pd and Rh nanoparticles
Michael Pittelkow, Theis Brock-Nannestad, Kasper Moth-Poulsen and Jørn B. Christensen,
Chem. Commun., 2008, 2358
DOI: 10.1039/b801215f
Chiral poly(amido amine) PAMAM dendrimers were designed, synthesised and used as macromolecular ligands for metal ions. Monodisperse chiral Pd and Rh particles were prepared inside the 5 largest dendrimers, as shown by TEM. The chiral nature of the metal particles was studied with circular dichroism and a Cotton effect in the region where the metal particle absorbs was observed.
Proton chemical shift anisotropy measurements of hydrogen-bonded functional groups by fast magic-angle spinning solid-state NMR spectroscopy
Luminita Duma, Daniel Abergel, Piotr Tekely and Geoffrey Bodenhausen,
Chem. Commun., 2008, 2361
DOI: 10.1039/b801154k
The suitability of fast MAS solid-state NMR spectroscopy for probing 1H chemical shift anisotropy of hydrogen-bonded species has been demonstrated.
Gelation-induced fluorescence enhancement of benzoxazole-based organogel and its naked-eye fluoride detection
Tae Hyeon Kim, Moon Soo Choi, Byeong-Hyeok Sohn, Soo-Young Park, Won Seok Lyoo and Taek Seung Lee,
Chem. Commun., 2008, 2364
DOI: 10.1039/b800813b
The benzoxazole derivative gelator 1 forms a stable DMF/toluene cosolvent gel, which showed naked-eye fluoride anion detection.
LNA functionalized gold nanoparticles as probes for double stranded DNA through triplex formation
Fiona McKenzie, Karen Faulds and Duncan Graham,
Chem. Commun., 2008, 2367
DOI: 10.1039/b802163e Enhanced HTML article available
LNA functionalized nanoparticles have been used to target double stranded DNA resulting in triplex formation. Colorimetric detection takes place by addition of the target polypurine–polypyrimidine sequence to the nanoparticle probes at room temperature without prior denaturation of the duplex.
A rigid sublimable naphthalenediimide cyclophane as model compound for UHV STM experiments
Sandro Gabutti, Marco Knutzen, Markus Neuburger, Guillaume Schull, Richard Berndt and Marcel Mayor,
Chem. Commun., 2008, 2370
DOI: 10.1039/b719796a
A cyclophane consisting of two spatially fixed chromophores has been synthesized and its self-assembly on an Au(111) surface has been investigated by low temperature UHV-STM.
Synthesis of hybrid nanowire arrays and their application as high power supercapacitor electrodes
Manikoth M. Shaijumon, Fung Suong Ou, Lijie Ci and Pulickel M. Ajayan,
Chem. Commun., 2008, 2373
DOI: 10.1039/b800866c
Ultra-high power electrochemical double layer capacitors have been fabricated using arrays of multi-segmented hybrid nanowires of carbon nanotube and gold nanowire, synthesized by a combination of electrodeposition and chemical vapour deposition techniques.
Following protein kinase acivity by electrochemical means and contact angle measurements
Agnieszka Wieckowska, Di Li, Ron Gill and Itamar Willner,
Chem. Commun., 2008, 2376
DOI: 10.1039/b800247a Enhanced HTML article available
The electrochemical analysis of the protein kinase, casein kinase, is accomplished by the voltammetric response of Ag+ ions associated with the phosphorylated product. The sensing surface is regenerated by the cleavage of the phosphorylated product with alkaline phosphatase, and the phosphorylation/de-phosphorylation processes are monitored by XPS and contact angle measurements.
Efficient total synthesis of (+)-negamycin, a potential chemotherapeutic agent for genetic diseases
Yoshio Hayashi, Thomas Regnier, Shigenobu Nishiguchi, Magne O. Sydnes, Daisuke Hashimoto, Junya Hasegawa, Takahiro Katoh, Tetsuya Kajimoto, Masataka Shiozuka, Ryoichi Matsuda, Manabu Node and Yoshiaki Kiso,
Chem. Commun., 2008, 2379
DOI: 10.1039/b801498a
(+)-Negamycin, a potential chemotherapeutic agent for genetic diseases, was synthesized using a highly efficient strategy from commercially available achiral N-Boc-2-aminoacetaldehyde with 42% overall yield in only eight steps.
Dehydroalkylation of toluene with ethane in a packed-bed membrane reactor with a bifunctional catalyst and a hydrogen-selective membrane
Seyed Alireza Sadat Rezai and Yvonne Traa,
Chem. Commun., 2008, 2382
DOI: 10.1039/b800486b
A new dehydrogenative-type reaction is performed in a membrane reactor. Since the number of moles does not change, improved yields at high pressures are possible in the membrane reactor.
Tetrakis(trifluoromethanesulfonyl)propane: highly effective Brønsted acid catalyst for vinylogous Mukaiyama–Michael reaction of ,-enones with silyloxyfurans
Arata Takahashi, Hikaru Yanai and Takeo Taguchi,
Chem. Commun., 2008, 2385
DOI: 10.1039/b800815a
1,1,3,3-Tetrakis(trifluoromethanesulfonyl)propane was found as an excellent Brønsted acid catalyst for the vinylogous Mukaiyama–Michael reaction of ,-enones with 2-silyloxyfurans.
Cobalt/rhodium heterobimetallic nanoparticle-catalyzed carbonylative [2+2+1] cycloaddition of allenes and bisallenes to Pauson–Khand-type reaction products
Ji Hoon Park, Eunha Kim, Hyeong-Mook Kim, Soo Young Choi and Young Keun Chung,
Chem. Commun., 2008, 2388
DOI: 10.1039/b718107h
The first catalytic intra- and intermolecular [2+2+1] cocyclization reactions of allenes and carbon monoxide have been developed. In the Co2Rh2 heterobimetallic nanoparticle-catalyzed carbonylative [2+2+1] cycloaddition of allenes and carbon monoxide, the allenes formally serve both as an excellent alkene and alkyne moiety.
Back cover
Chem. Commun., 2008, 2391
DOI: 10.1039/b806463f
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