Royal Society of Chemistry: New Journal of Chemistry

RSC - New J. Chem. latest articles

• 2-Azetidinones: synthesis of new bis(indolyl)butyl-[small beta]-lactams
  New [small beta]-lactam compounds containing a bis(indolyl)-framework were synthesized.
  
  
• Intramolecular approach to some new D-ring-fused steroidal isoxazolidines by 1,3-dipolar cycloaddition: synthesis, theoretical and in vitro pharmacological studies
  Novel androstene-fused isoxazolidines have been obtained diastereoselectively via thermally induced and Lewis acid-catalysed intramolecular [3+2] cycloaddition of a D-secopregnene aldehyde and its aldoxime derivative.
  
  
• Basicity and bulkiness effects of 1,8-diaminonaphthalene, 8-aminoquinoline and their alkylated derivatives on the different efficiencies of [small eta]5-C5H5 and [small eta]5-C5Me5 ruthenium precatalysts in allylic etherification reactions
  N,N-Ligands with different basicity nitrogen donor atoms and bulkiness features were used in allylic etherification reactions of cinnamyl chloride catalyzed by [([small eta]5-C5R5)Ru(N,N)(NCMe)]PF6 (R = H, Me) complexes.
  
  
• The effect of the conformation of flexible carboxylate ligands on the structures of metal-organic supramolecules
  Three metal-organic supramolecules constructed from flexible dicarboxylate ligands have been synthesized, and the effect of the conformation of the ligands on the final structures has been discussed.
  
  
• One-pot preparation of graphene/Fe3O4 composites by a solvothermal reaction
  Graphene/Fe3O4 composites were prepared through a one-pot solvothermal reaction by using graphite oxide and FeCl3[middle dot]6H2O as starting materials. Fe3O4 microspheres were distributed on graphene sheets uniformly. The obtained composites show a considerable saturation magnetization and high doxorubicin hydrochloride loading.
  
  
• pH-stable hyperbranched poly(ethyleneimine)-maltose films for the interaction with phosphate containing drugs
  The uptake and release of ATP by hyperbranched poly(ethyleneimine)-maltose (PEI-Mal) hydrogel films is observable by in-situ ellipsometric measurements which can be intrigued with other potential bio-applications for establishing multifunctional thin PEI-Mal hydrogel films.
  
  
• Ruthenium porphyrin bound to a Merrifield resin as heterogeneous catalyst for the cyclooligomerization of arylethynes
  Ruthenium meso-tetraphenylporphyrin bound to the Merrifield resin has been used in the cyclooligomerization of arylethynes, giving heterobiaryl and triphenylbenzenes as final products with a complete recycling of the catalyst.
  
  
• Moisture-saturated zeolites - A new strategy for releasing nitric oxide
  Zeolite pre-adsorbed with nitric oxide, when added to a gastric juice mimic, releases NO and captures nitrosamines, making it a potential functional material for reducing the risk of ulcers and cancers in the digestive system.
  
  
• Fabrication of organogels composed from carbon nanotubes through a supramolecular approach
  A pyrene based low molecular gelator was synthesized and it was used to fabricate a stable organogel composed of pristine single-walled carbon nanotubes.
  
  
• "Pre-seeding"-assisted synthesis of a high performance polyamide-zeolite nanocomposite membrane for water purification
  A new type of polyamide-zeolite nanocomposite membrane has been fabricated for use in water purification by a "pre-seeding" method. The incorporated zeolite provides a preferential flow path for water permeability.
  
  
• J-aggregate formation in bis-(4-carboxyphenyl)porphyrins in water:pH and counterion dependence
  Self-assembly strategy: pH-induced self-aggregation of substituted carboxyphenyl porphyrins depend on the number, charge, relative position of the substituent units in the macrocycle core and on the acid or basic counterion agent.
  
  
• Silver pyrazole complexes with tunable liquid crystals and luminescent properties
  The luminescent and liquid crystal behaviour of ionic silver pyrazole-based complexes can be tuned by controlling the substitution on the pyrazole ring and the nature of the counteranion. Photophysical studies of mesomorphic compounds as a function of the temperature indicate that the emission is maintained in the liquid crystal state.
  
  
• Design of 3-D europium(iii)-organic frameworks based on pyridine carboxylate N-oxide and acyclic binary carboxylate: syntheses, structures, and luminescence properties
  The ligand coordination mode, the length of the acyclic binary carboxylate, the ligand conformation and the molar ratio of reactants decides the formation of four 3-D europium(iii) frameworks of different structures.
  
  
• Metalla-macro-tricyclic cryptands: anion encapsulation and selective separation of sulfate via in situ crystallization
  An in situ crystallization technique under competitive conditions proved to be viable for separating important anions such as SO42- as concomitantly formed neat crystals of metallacryptand 1a and 1D zig-zag coordination polymer 1b from a complex mixture of anions containing SO42-, NO3- and ClO4-.
  
  
• Single-color pseudorotaxane-based temperature sensing
  The continuous and reversible change in optical absorption of charge-transfer based colored pseudorotaxane solutions over large temperature windows suggests that these systems could be exploited in novel temperature sensors.
  
  
• Aerial oxidation of tetrahydrofuran to 2-hydroxotetrahydrofuran in the presence of a trimeric CuI complex [Cu3L3] (HL = tBuNHC(S)NHP(S)(OiPr)2) and trapping of the unstable product at recrystallization
  The reaction of the potassium salt of tBuNHC(S)NHP(S)(OiPr)2 (HL) with Cu(NO3)2 leads to [Cu3L3]. [Cu3L3] provokes the aerobic oxidation of tetrahydrofuran to 2-hydroxotetrahydrofuran.
  
  
• Fluoranthene-based triarylamines as hole-transporting and emitting materials for efficient electroluminescent devices
  Fluoranthene based triarylamines containing Mullen dendron-like structures have been successfully synthesized and demonstrated as hole-transporting and emitting materials in multi-layered organic light-emitting diodes.
  
  
• Synthesis, structural characterisation and bonding in an anionic hexavanadate bearing redox-active ferrocenyl groups at the periphery
  The salt (Bu4N)2[{FcC(O)NHC(CH2O)3}2V6O13] (Fc = ferrocenyl) comprising the first ferrocenyl-modified polyoxovanadate anion (see structure) has been prepared and characterised by a combination of spectroscopic methods, cyclic voltammetry and DFT calculations.
  
  
• Hydrophobic Cr-Si mixed oxides as a catalyst for visible light-induced partial oxidation of cyclohexane
  Hydrophobic Cr-Si mixed oxides prepared with an organosilane promote efficient and selective photocatalytic oxidation of cyclohexane to cyclohexanone and cyclohexanol with molecular oxygen under visible light irradiation.
  
  
• Homochiral column structure of rac- and [capital Lambda]-[MIII(tn)3]P3O9 (M = Co, Cr; tn = 1,3-diaminopropane; P3O9 = cyclotriphosphate(3-)) produced by multiple hydrogen bonds
  In rac-[Co(tn)3]P3O9[middle dot]7.3H2O, the [Co(tn)3]3+ cations with the same absolute configuration and the P3O93- anions are multiply hydrogen bonded to form a homochiral columnar structure.
  
  
• Synthesis and photophysics of a fullerene-triquinoxaline ensemble
  A photophysical investigation on a novel fullerene-triquinoxaline molecular ensemble shows that the light energy absorbed by the quinoxaline antennas is quantitatively transferred to the fullerene centre, which effectively photosensitizes the generation of singlet oxygen.
  
  
• Spectroscopic investigations of pyrene butanol encapsulated in C-hexylpyrogallol[4]arene nanocapsules
  A crystallographic perspective of PBOH encapsulated within PgC6.
  
  
• Stable hemiaminals containing a triazole ring
  The reaction of nitrobenzaldehyde derivatives with 4-amino-1,2,4-triazole show a new simple route to stable hemiaminals with two chiral centers, in which both conformation and configuration are highly correlated.
  
  
• New linker systems for superior immobilized catalysts
  A new linker scaffold prevents the immobilized Rh catalyst from getting deactivated by dimerization or contact with the support surface, and therefore the catalyst can be recycled for a record 30 times.
  
  
• Highly ordered mesoporous titania with semi crystalline framework templated by large or small nonionic surfactants
  Highly ordered mesoporous titania.
  
  
• Ultrasound-promoted hydrogelation of terpyridine derivatives
  Terpyridine derivatives gel water and capture some metal cations giving stable gels with different emissive properties.
  
  
• Amonocarboxylate-bridged diiron(iii) [small mu]-oxido complex that catalyzes alkane oxidation by hydrogen peroxide
  A new pivalate-bridged [small mu]-oxido diiron complex catalyzes the oxidation of cyclohexane or 1,2-cis-dimethylcyclohexane by hydrogen peroxide, forming the corresponding ketones and alcohols.
  
  
• 'Clicking' molecular hooks on silica nanoparticles to immobilize catalytically important metal complexes: the case of gold catalyst immobilization
  An Au(iii) complex has been "clicked" onto silica nanoparticles by using alkynalated picolinic acid as a "molecular hook", and this nano-conjugate's catalytic activity on furanyl propargyl ethers to give isobenzofurans has been investigated.
  
  
• Protein adsorption materials of the soluble conducting polymer poly(acryloyl chloride)-g-polypyrrole
  A soluble functionalized conducting graft copolymer of poly(acryoyl pyrrole) (PAP) and polypyrrole, PAP-g-PPy, was synthesized and protein adsorption onto this copolymer surface investigated in detail. The copolymer demonstrates a relative strong electroactivity and high protein fouling properties. The results show that the conducting copolymer PAP-g-PPy can be used as a protein or electrochemical biosensor.
  
  
• Synthesis and DNA cleavage activity of triazacrown-anthraquinone conjugates
  Two triazacrown-anthraquinone conjugates were synthesized as new metal-free DNA cleaving reagents, and their cleavage efficiency, interactions with DNA were studied by spectroscopic techniques and agarose gel electrophoresis.
  
  
• The ultrafast sonochemical synthesis of mesoporous silica MCM-41
  Well-ordered mesoporous silica MCM-41 has been synthesized using cetyltrimethylammonium bromide (CTMABr) as a template under basic media with the aid of ultrasonic irradiation in a very short time period of 5-50 min.
  
  
• A highly copper selective chromogenic calix[4]arene derivative
  The synthesized ligand 4 was found to be selective toward Cu2+ among a series of selected metal ions, which may be due to the compatibility between the metal and ligand. Moreover, ionic radii, nature, number of binding sites, cavity size and geometry of 4 play an important role in selective complexation.
  
  
• New heterometallic coordination polymers constructed from 3d-3d[prime or minute] binuclear nodes
  New heterometallic coordination polymers have been constructed by connecting binuclear nodes [CuIIMnII] and [CuIICoII], with polycarboxylato anions as spacers.
  
  
• Co-sensitized dye-sensitized solar cells based on d10 coordinate complexes towards their optoelectronic properties
  d10 transition metal complexes with a [bis(iminoalkyl)pyridine] ligand connected to N719 as a co-sensitized photoelectrode present an improved optoelectronic performance compared to single dyes in DSSCs.
  
  
• Fe3(BF)3(CO)8 structures with face-semibridging fluoroborylene ligands and a bicapped tetrahedral Fe3B3 cluster isoelectronic with Os6(CO)18
  Fifteen structures are found for Fe3(BF)3(CO)8 within 30 kcal mol-1 of the global minimum. None of these structures has any terminal BF groups. One of the singlet Fe3(BF)3(CO)8 structures has a B3F3 chain as part of an Fe3B3 bicapped tetrahedron analogous to Os6(CO)18.
  
  
• Size-effects in the chemical modification of carbon black nanoparticles with 4-nitroaniline
  A range of carbon black primary nanoparticle sizes were investigated; conditions required in order to obtain strongly bound redox compounds are discussed and size effects noted.
  
  
• Novel fluorinated amino-stilbenes and their solid-state photodimerization
  Solid state topochemical photodimerizations of polyfluoro-amino-stilbenes are driven by arene-fluoroarene interactions, promoting their reversible photochemical [2+2] cyclization in the solid state.
  
  
• A metal-organic framework with three cavities based on three-coloured square tiling derived from a cyclobutane constructed in the solid state
  A 2D MOF with a topology that conforms to 3-uniform colour tiling has been achieved using a ligand synthesized by a templated solid-state reaction.
  
  
• Self-assembly of amphiphilic calixarenes and resorcinarenes in water
  The present perspective article describes the developments of the chemistry of amphiphilic calixarenes and resorcinarenes with a clear focus on the synthetic paths used for their production and their self-assembly properties in water.
  
  
• MOFs, MILs and more: concepts, properties and applications for porous coordination networks (PCNs)
  This review (over 380 references) summarizes metal-organic frameworks (MOFs), Materials Institute Lavoisier (MILs), iso-reticular metal-organic frameworks (IR-MOFs), porous coordination networks (PCNs), zeolitic metal-organic frameworks (ZMOFs) and porous coordination polymers (PCPs) with selected examples of their structure and function.