New Journal of Chemistry.... the home of new and emerging multidisciplinary work in the chemical sciences.
NJC Cover Gallery 2008
Cover Gallery
The pseudo-micropore structure in a low dimensional caesium silicate LDS-1 is composed of strong hydrogen bonding between adjacent terminal silanols, which was elucidated by the MEM electron density analysis.
DOI: 10.1039/B819121M
Surprising geometries are proposed here for the aqueous species of protactinium, based on quantum mechanics.
DOI: 10.1039/B819120B
The reactivity of E-E in sigma(E2E'2 4c-6e) of 1-(8-PHE'C10H6)EE(C10H6 E'Ph-8')-1' is controlled by E': The E-E bonds are reduced by NaBH4 when E' = Se but not if E' = S.
DOI: 10.1039/B818003M
Immobilization and release of single and double strand DNA is achieved by exploiting the light-controlled electrostatic interactions with the two-isomeric forms of a cationic azobenzene self-assembled on transparent platinum electrodes.
DOI: 10.1039/B818002B
Two polymorphs of aprepitant differ only in alternatively stacked units (2D fragment) with molecular units of the same geometry, in spite of six freely rotatable bonds (packing polymorphism).
DOI: 10.1039/B816165H
Melt co-crystallisation from the eutectic mixture of the components: isonicotinamide and benzoic acid. The 1:1 co-crystal phase is shown growing from the interface of the melted benzoic acid and melting isonicotinamide.
DOI: 10.1039/B816164J
Hydrogen bond donor (HBD) strength parameters of 1-butyl-3-methylimidazolium-based ionic liquids with various anions were determined by means of Fe(phen)2(CN)2 as the solvatochromic UV/Vis probe.
DOI: 10.1039/B813965M
Knotted and linked structures are challenging targets for chemical syntheses due to the inherent connections between tangling, chirality and molecular properties. The image shows a simple example of a "ravelled" structure that is tangled, but contains neither knots nor links. This example is a ravelled tetrahedron.
DOI: 10.1039/B719665B
The image shows a blue phosphorescent organic light emitting diode (OLED) device using new host material TCTEB, with a sterically bulky structure due to nonbonded conformational locking interactions, and Firpic as dopant.
DOI: 10.1039/B812061G
Advanced functional materials having hierarchical structures can be tailor-made via the smart integration of soft chemistry-based pathways and the versatile processing conditions offered by soft-matter physico-chemistry.
DOI: 10.1039/B812060A
The cover image shows oligomeric structures being deposited onto a platinum electrode, represented here as a shiny disk. This depiction is housed in a cube formed by some of the cyclic voltammograms recorded during the electrodeposition process. The slight transparency of the frame allows the gorgeous mountains surrounding Grenoble to be viewed in the background.
DOI: 10.1039/B803360A
The cover page illustrates the staining of HeLa (cervix cancer) cells stained by a bimetallic europium helicate, which penetrates into their cytoplasm, as demonstrated by the nucleus-staining agent acridine orange (AO, in green).
DOI: 10.1039/B810204J
Photochromic hybrid Langmuir-Blodgett films composed of polyoxometalate and gemini amphiphiles were fabricated. A slight dependence of the coloration of the hybrid films on the spacer length was observed.
DOI: 10.1039/B808518H
Synthetic bacteriochlorins substituted with auxochromes exhibit sharp absorption and emission bands in the NIR (713-777 nm), enabling diverse applications (polychromatic flow cytometry, photodynamic therapy, solar energy conversion).
DOI: 10.1039/B808517J
The cover displays the structure of a molecule containing the first unsupported group 13-hafnium bonds (pink orbs = group 13 elements; blue orb = hafnium). Two identical group 13 metals are bonded to the central hafnium atom resulting in a "V-shaped" core architecture.
DOI: 10.1039/B806310A
The cover image shows two viologen-based colourimetric anion sensors that respond to different amounts of anion depending on internal competition within the molecules. They are superimposed on an image of flowers taken in Tachikawa, Japan. The colours reflect the colour changes undergone by the anion sensors.
DOI: 10.1039/B806309P
Helical structures persist in Nature from macroscopic vines to the well-known alpha-helix. Inspired by folded macromolecules, we have studied synthetic abiotic foldamers based on phenylene ethynylene.
DOI: 10.1039/B804582H
The cover shows a supramolecular electronic junction of redox-active ferrocene dendrimers inserted between metal electrodes in a crossed-bar configuration. The dendrimers are held in place by host-guest interaction with cyclodextrins adsorbed on the electrodes.
DOI: 10.1039/B804581J
Acid/base controlled encapsulation of a fluorescent guest into a photoactive dendritic box.
DOI: 10.1039/B802826P
Space filling model of a molecule, whose fluorescence depends on input information. The logic behaviour is compatible with a half-subtractor, represented in the right corner. The background shows a drawing of the calculating clock (1623) by Wilhelm Schickard.
DOI: 10.1039/B802825G
The ethanol content of hydroalcoholic beverages (like the whisky in these barrels) and gasoline-ethanol blends can be accurately determined thanks to a fluorous colorimetric copper (II)-based indicator-displacement assay.
DOI: 10.1039/B801002C
300 years after the discovery of Prussian blue, cyano-bridged metal coordination polymers are synthesised as nanoparticles and organised by using meso-structured hybrid silica hosts.
DOI: 10.1039/B709490F
Proposed model structure for a hypothetical porous polymer where "naked fluoride" moieties are site isolated and available for H2 physisorption.
DOI: 10.1039/B719057N
The scaffold from blister beetle, cantharidin, is modified to a bulky cation with associated anion-an ionic liquid. Surprisingly, it blocks the GTPase activity of the endocytosis protein dynamin.
DOI: 10.1039/B707092F
