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Capturing by self-assembled block copolymer thin films: transfer printing of metal nanostructures on textured surfaces.
A method to fabricate metal nanostructures by transfer printing, applicable to textured surfaces, is described. The key is the use of self-assembled polystyrene-block-poly-2-vinylpyridine thin films as binding layers. The plasmonic properties of the obtained metal (Ag) nanostructures showed the pote...
Novel titanium-based O3-type NaTi0.5Ni0.5O2 as a cathode material for sodium ion batteries.
O3-type NaTi0.5Ni0.5O2 is explored as a titanium-based cathode material for sodium ion batteries. It delivers a reversible capacity of 121 mA h g(-1) at 0.2 C with smooth charge-discharge curves, and exhibits excellent cycling stability and good rate capability, indicating its superiority as a promi...
Intriguing mechanistic labyrinths in gold(i) catalysis.
We review the main mechanistic proposals in gold-catalysed activation of alkynes and allenes, in which this metal plays a central role by stabilising a variety of complex cationic intermediates....
Facile synthesis of nano-sized hollow single crystal zeolites under mild conditions.
We report a method to synthesize hollow ZSM-5 single crystals of a size below 100 nm that could function as nanoreactors with access through the zeolite micropores only. In the first step, ZSM-5 is synthesized with the respective crystal size. In the second, the zeolite is base leached and acid wash...
Colouring crystals with inorganic nanoparticles.
A simple, one-pot method is presented whereby gold nanoparticles coated with a zwitterionic diblock copolymer are incorporated within single crystals of calcite. This may provide a versatile alternative to dyeing crystal with organic molecules and could be extended to create a series of new nanocomp...
Phosphaalkene vs. phosphinidene: the nature of the P-C bond in carbonyl-decorated carbene → PPh adducts.
Treatment of dichlorophenylphosphine with two equivalents of carbonyl-decorated carbenes results in a two-electron reduction of the phosphorus centre concomitant with carbene oxidation to afford novel phosphaalkenes as confirmed via crystallographic, spectroscopic, and DFT analyses.
Oligomers based on weak hydrogen bond networks: a rotational study of the tetramer of difluoromethane.
We report the rotational spectrum of one conformer of the tetramer of difluoromethane (CH2F2)4 (the first pure rotational spectrum of a tetramer of an asymmetric rotor), and describe the network of weak hydrogen bonds which connect the four subunits.
Orientational variation, solvate composition and molecular flexibility in well-ordered cocrystals of the fullerene C70 with bis(ethylenedith...
Cocrystallization of C70 with bis(ethylenedithio)tetrathiafulvalene (ET) produces two different solvates, C70·ET·C6H6 and 2C70·2ET·CS2, which show distinctly different overlap between the fullerene and ET molecules.
Slow magnetic relaxation in radical cation tetrathiafulvalene-based lanthanide(iii) dinuclear complexes.
Lanthanide dinuclear complexes involving tetrathiafulvalene-based ligands in their radical cation form were synthesised and crystallised by a galvanostatic procedure. Dynamic magnetic measurements reveal an unprecedented slow magnetic relaxation for the Dy(iii) analogue in this kind of molecular edi...
Biomimetic artificial ion channels based on beta-cyclodextrin.
Star polymers based on β-cyclodextrin were synthesized by a ''click-chemistry'' process and characterized by NMR, SEC and BLM. The resulting triazole functional groups create, at a specific pH range, electrostatic hindrance between pores inserted in lipid bilayers, preventing their aggregation, allo...