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Contents list for Chemical Communications, issue 19, 2008
Front cover
Chem. Commun., 2008, 2169
DOI: 10.1039/b806335b
Contents
Chem. Commun., 2008, 2171
DOI: 10.1039/b806336m
Feature Article
Luminescent complexes beyond the platinum group: the d10 avenue
Andrea Barbieri, Gianluca Accorsi and Nicola Armaroli,
Chem. Commun., 2008, 2185
DOI: 10.1039/b716650h
The tuneability of the emission colour from red to blue, the variety of chemical structures, and significant progress in the emission performance make luminescent d10 complexes increasingly appealing as alternatives to traditional, but expensive, precious metal or rare earth emitting compounds.
Communications
The 8 : 1 : 1 ternary hybrid framework in the system [EDT-TTF
+][1,4-bis(iodoethynyl)benzene][Re6Se8(CN)6]4-: dual noncovalent expression of the octahedral halogen-bond hexa-acceptor nanonode
Anne-Lise Barrès, Abdelkrim El-Ghayoury, Leokadiya V. Zorina, Enric Canadell, Pascale Auban-Senzier and Patrick Batail,
Chem. Commun., 2008, 2194
DOI: 10.1039/b800571k
Three types of noncovalent interactions direct topology, achieve space partition.
Nanoparticle assisted magnetic resonance imaging of the early reversible stages of amyloid 
self-assembly
Jin-sil Choi, Hyuck Jae Choi, Dae Chul Jung, Joo-Hyuk Lee and Jinwoo Cheon,
Chem. Commun., 2008, 2197
DOI: 10.1039/b803294g
Enhanced HTML article available
Co@Pt–Au nanoparticles, which have enhanced magnetism and high stability in aqueous media, are utilized in conjunction with MRI to monitor the structural evolution of A assemblies, especially A protofibrils in the early reversible stages.
Synthesis, electronic properties and electropolymerisation of EDOT-capped 
3-phospholes
Vincent Lemau de Talancé, Muriel Hissler, Ling-Zhi Zhang, Tamás Kárpáti, László Nyulászi, Dolores Caras-Quintero, Peter Bäuerle and Régis Réau,
Chem. Commun., 2008, 2200
DOI: 10.1039/b801335g
The synthesis and physical properties of a new mixed 3–phosphole–EDOT oligomer are described. This compound self-rigidifies due to an unprecedented P–O interaction and can be electropolymerised affording polymers incorporating functionalizable 3–P moieties.
1,3-Dipolar cycloaddition of alkynes to azides. Construction of operationally functional metal responsive fluorophores
David Schweinfurth, Kenneth I. Hardcastle and Uwe H. F. Bunz,
Chem. Commun., 2008, 2203
DOI: 10.1039/b800284c
Click chemistry and metalloresponsive fluorophores: a copper catalyzed 1,3-dipolar cycloaddition of 4-butoxyphenylazide to 2-ethynylpyridine furnishes a dipolar cycloadduct that displays a strong fluorescence enhancement upon exposure to different divalent metal cations.
First demonstration of CdSe as a photocatalyst for hydrogen evolution from water under UV and visible light
F. Andrew Frame, Elizabeth C. Carroll, Delmar S. Larsen, Michael Sarahan, Nigel D. Browning and Frank E. Osterloh,
Chem. Commun., 2008, 2206
DOI: 10.1039/b718796c
CdSe nanoribbons show activity for photocatalytic H2 evolution from aqueous Na2S/Na2SO3 solution under visible light irradiation. The activity is due to a quantum size effect. This is the first metal selenide active for this reaction.
Unexpected kinetic complexity in the formation of a nonheme oxoiron(IV) complex
Xiaopeng Shan and Lawrence Que Jr. ,
Chem. Commun., 2008, 2209
DOI: 10.1039/b716036d
The stoichiometric formation of [FeIV(O)(L)(NCMe)]2+ from its iron(II) precursor and 1 equiv. peracid is kinetically more complex than expected, and an oxoiron(IV)–peracid adduct is proposed as the primary oxidant.
RhI-catalyzed aldol-type reaction of organonitriles under mild conditions
Akihiro Goto, Kohei Endo, Yu Ukai, Stephan Irle and Susumu Saito,
Chem. Commun., 2008, 2212
DOI: 10.1039/b800634b Enhanced HTML article available
An aldol-type reaction of organonitriles with aldehydes was catalyzed by a RhI(OR) species under ambient conditions, with the loading of catalyst precursor (as low as 0.005 molar equiv.) and organonitrile (as low as 2 molar equiv.) lower than previously reported.
Template synthesis of water-dispersible and magnetically responsive carbon nano test tubes
Hironori Orikasa, Nobuhiro Inokuma, Somlak Ittisanronnachai, Xiao-Hui Wang, Osamu Kitakami and Takashi Kyotani,
Chem. Commun., 2008, 2215
DOI: 10.1039/b800475g
Water-dispersible and magneto-responsive carbon nano test tubes with a uniform size were synthesized, and the effect of magnetic interaction on the water dispersibility was analyzed in a semi-quantitative manner.
Kinetic resolution of racemic pyrrolidine-2,5-diones using chiral oxazaborolidine catalysts
Mike D. Barker, Rachel A. Dixon, Simon Jones and Barrie J. Marsh,
Chem. Commun., 2008, 2218
DOI: 10.1039/b800510a Enhanced HTML article available
Chiral oxazaborolidine catalysts derived from cis-1-amino-indan-2-ol have been shown to be highly effective catalysts for the kinetic resolution of racemic pyrrolidine-2,5-diones with selectivity factors of up to 23 obtained with 0.5 mol% catalyst. The selectivity of the catalyst was very sensitive to the nature of the nitrogen protecting group.
A 280 µW cm-2 biofuel cell operating at low glucose concentration
Nicolas Mano,
Chem. Commun., 2008, 2221
DOI: 10.1039/b801786g
We report the highest power biofuel cell, 280 µW cm-2, operating at the lowest concentration to date: 5 mM glucose concentration.
Zinc ferrite nanoparticles as MRI contrast agents
Carlos Bárcena, Amandeep K. Sra, Girija S. Chaubey, Chalermchai Khemtong, J. Ping Liu and Jinming Gao,
Chem. Commun., 2008, 2224
DOI: 10.1039/b801041b
Mixed spinel hydrophobic ZnxFe1-xO·Fe2O3 (up to x = 0.34) nanoparticles encapsulated in polymeric micelles exhibited increased T2 relaxivity and sensitivity of detection over clinically used Feridex®.
Time-dependent amplification of helical bias in self-assembled dye nanorods directed by the sergeants-and-soldiers principle
Andreas Lohr and Frank Würthner,
Chem. Commun., 2008, 2227
DOI: 10.1039/b802696c
A pronounced sergeants-and-soldiers directed chiral amplification is observed for the self-assembly of merocyanine dye nanorods and the amplification process is shown to become slower for decreasing fraction of sergeant molecules.
Fine-tuning the transition temperature of a stimuli-responsive polymer by a simple blending procedure
Francisco Fernández-Trillo, Jan C. M. van Hest, Jens C. Thies, Thierry Michon, Ralf Weberskirch and Neil R. Cameron,
Chem. Commun., 2008, 2230
DOI: 10.1039/b800266e Enhanced HTML article available
Binary mixtures of well-defined, stimuli-responsive elastin-based side-chain polymers show a single transition temperature that depends on blend composition.
Unusual parallel and inclined interlocking modes in polyrotaxane-like metal–organic frameworks
Jin Yang, Jian-Fang Ma, Stuart R. Batten and Zhong-Min Su,
Chem. Commun., 2008, 2233
DOI: 10.1039/b800199e
We report here two unusual polyrotaxane-like metal–organic frameworks of [Co2(1,3-bix)2(bpea)2] 1 and [Cd4(1,4-bix)4(bpea)4]·4H2O 2, where both species contain loops and rods that are interlaced in a highly rare 
parallel
fashion in 1, but, uniquely, in an inclined fashion in 2.
Sequence recognition and self-sorting of a dipeptide by cucurbit[6]uril and cucurbit[7]uril
Mikhail V. Rekharsky, Hatsuo Yamamura, Young Ho Ko, N. Selvapalam, Kimoon Kim and Yoshihisa Inoue,
Chem. Commun., 2008, 2236
DOI: 10.1039/b719902c Enhanced HTML article available
Cucurbit[7]uril forms very strong complex with zwitterionic dipeptide Phe–Gly with affinity exceeding 107 M-1.
Reversible shrinkage and expansion of a blue photofluorescent cadmium coordination polymer and in situ tetrazole ligand synthesis
Hong Deng, Yong-Cai Qiu, Ying-Hua Li, Zhi-Hui Liu, Rong-Hua Zeng, Matthias Zeller and Stuart R. Batten,
Chem. Commun., 2008, 2239
DOI: 10.1039/b800938d
The metal–organic framework [Cd15(5MT)18(OH)4(SO4)4] with an unprecedented Cd3(µ3-OH)(µ3-SO4) core and two kinds of tetrazole coordination modes was formed by self-assembly and in situ synthesis of the 5-MT tetrazole ligand.
Detection of mercury(II) based on Hg2+–DNA complexes inducing the aggregation of gold nanoparticles
Chi-Wei Liu, Yi-Ting Hsieh, Chih-Ching Huang, Zong-Hong Lin and Huan-Tsung Chang,
Chem. Commun., 2008, 2242
DOI: 10.1039/b719856f
A DNA–Au NP probe for sensing Hg2+ using the formation of DNA–Hg2+ complexes through T–Hg2+–T coordination to control the negative charge density of the DNA strands—thereby varying their structures—adsorbed onto Au NPs.
Defection-selective solubilization and chemically-responsive solubility switching of single-walled carbon nanotubes with cucurbit[7]uril
Tomoki Ogoshi, Ayumi Inagaki, Tada-aki Yamagishi and Yoshiaki Nakamoto,
Chem. Commun., 2008, 2245
DOI: 10.1039/b801546e
Single-walled carbon nanotubes (SWCNTs) were homogeneously suspended in aqueous media with cucurbit[7]uril (CB7).
Metastable two-component gel—exploring the gel–crystal interface
Jamie R. Moffat and David K. Smith,
Chem. Commun., 2008, 2248
DOI: 10.1039/b801913d
A two-component system in which molecular recognition rapidly leads to the formation of a homogeneous molecular gel that subsequently aggregates via fibre–fibre interactions to yield microcrystals.
Synthesis and structure of the Li13 cage [{[O
P(µ-NtBu)]2Li2}3(LiCl)6Li(Cl/OnBu)0.5(thf)7], containing a [OP(µ-NtBu)]22- dianion
Wesley Ting Kwok Chan, Dana Eisler, Felipe García, Silvia Gonzalez-Calera, Mary McPartlin, James V. Morey, Robert E. Mulvey, Sanjay Singh, Alexander Steiner and Dominic S. Wright,
Chem. Commun., 2008, 2251
DOI: 10.1039/b800051d Enhanced HTML article available
The first complex containing the [OP(µ-NtBu)]22- dianion has been obtained.
A jellyfish shaped green emitting gallium(III)-containing metallomesogen
Daniela Pucci, Iolinda Aiello, Anna Bellusci, Alessandra Crispini, Irene De Franco, Mauro Ghedini and Massimo La Deda,
Chem. Commun., 2008, 2254
DOI: 10.1039/b800030a
The first example of a gallium(III)-based liquid crystal has been synthesized and structurally characterized, giving rise to a new smart multifunctional complex being also a good emitting species.
Control of electronic structure of a six-coordinate iron(III) porphyrin radical by means of axial ligands
Akira Ikezaki, Hideyuki Tukada and Mikio Nakamura,
Chem. Commun., 2008, 2257
DOI: 10.1039/b800674a
Addition of tert-butylisocyanide (tBuNC) to a CD2Cl2 solution of the iron(III) tetramesitylporphyrin (TMP) radical cation Fe(TMP)(ClO4)2 at 195 K leads to the formation of [Fe(TMP)(tBuNC)2]2+ with an S = 0 (dxy, dyz)4 (dxy, a2u)2 ground state.
Two-photon absorption enhancement induced by aggregation due to intermolecular hydrogen bonding in V-shaped 2-hydroxypyrimidine derivatives
Zijun Liu, Pin Shao, Zhenli Huang, Bo Liu, Tao Chen and Jingui Qin,
Chem. Commun., 2008, 2260
DOI: 10.1039/b718147g Enhanced HTML article available
The aggregation-induced large enhancement of two-photon absorption due to intermolecular hydrogen bonding is observed in solution.
D-Camphor-derived triazolium salts for catalytic intramolecular crossed aldehyde–ketone benzoin reactions
Yi Li, Zhen Feng and Shu-Li You,
Chem. Commun., 2008, 2263
DOI: 10.1039/b801004h Enhanced HTML article available
A series of triazolium salts has been synthesized from D-camphor and the N-heterocyclic carbene derived from 1d and DBU could catalyze the intramolecular crossed aldehyde–ketone benzoin reaction in excellent yields with high ees.
Structural diversity of 1,2,4-diazaphospholide complexes with alkali metals
Li Wan, Chengfu Pi, Lan Zhang, Wenjun Zheng, Linhong Weng, Zhenxia Chen and Yong Zhang,
Chem. Commun., 2008, 2266
DOI: 10.1039/b800222c
Several alkali metal complexes bearing 1,2,4-diazaphospholide ligands have been investigated and they represent novel structural motifs with -, 
-bonding between the metal and the ligands.
Side-effect of ancillary ligand on electron transfer and photodynamics of a dinuclear valence tautomeric complex
Bao Li, Jun Tao, Hao-Ling Sun, Osamu Sato, Rong-Bin Huang and Lan-Sun Zheng,
Chem. Commun., 2008, 2269
DOI: 10.1039/b801171k
A cobalt complex was prepared and studied by X-ray diffraction, electrochemistry, ESR, thermally and photo-induced magnetic measurements. The results show that the ancillary ligand finely tuned structural factors and intermolecular interactions.
Chemosensor for the optical detection of aliphatic amines and diamines
Susanne Reinert and Gerhard J. Mohr,
Chem. Commun., 2008, 2272
DOI: 10.1039/b717796h
Two new chemosensor dyes with either one or two trifluoroacetophenone recognition moieties have been investigated in terms of reversibly interacting with amines and diamines to form hemiaminals causing changes in absorbance. The pre-organised structure of one of these chemosensors enhanced the selectivity towards diamines..
Back cover
Chem. Commun., 2008, 2275
DOI: 10.1039/b806338a
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