Materials Literature
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We report a general strategy for the spontaneous segregation of electron-rich and electron-poor pi-conjugated moieties using mutually phobic aliphatic fluorocarbon-hydrocarbon interactions.
Layer-by-layer self-assembly can be used to incorporate amphiphilic molecules into multilayered polyelectrolyte architectures. This review examines equilibrium LbL assemblies constructed by direct adsorption from aqueous solution. LbL systems have not only provided fundamental insight into the nature of polyion-surfac…
New organic–inorganic hybrid molecular films, consisting of a Keggin-type polyoxometalate PW12 and a series of gemini amphiphiles with various lengths of the flexible spacers, have been fabricated using the Langmuir–Blodgett (LB) technique and the electrochemical properties of the hybrid films were investigated. When…
[Pt II (CH 3 )Cl 3 ] 2- ( 1 ), generated at 95 °C in situ from Cs 2 [Pt IV (CH 3 ) 2 Cl 4 ] in an aqueous solution of high chloride concentration and [H + ] = 0.2 M, undergoes competitive oxidation versus protonation ( k ox / k H + ) with several oxidants. A first-order dependence on oxidant concentration was determin…
Reaction of iron(II) and the 3 : 1 Schiff base condensate of 5-methylpyrazole-3-carboxaldehyde and tris(2-aminoethyl)amine in air gives a pseudo-dimer complex with a triple helix structure made of Delta-Delta and Lambda-Lambda pairings of spin crossover iron(II) and low spin iron(III) cations that are held together by…
The new hybrid inorganic–organic solids [Mo8O26][H2bpe]2 (1), {[Mo8O26(μ-bpe)][H2bpe]2}n (2), [Mo8O26(Hbpe)2][H2bpe] (3), and {[Mo8O26][H2bpe]2}n (4) were synthesized under hydrothermal conditions. The crystal structure of 1 contains the discrete octamolybdate β-isomer, whereas in 3 the inorganic building unit is a fu…
Metal-substituted hexaaluminates are highly active, selective, stable, and inexpensive catalytic materials for high-temperature N2O abatement in the chemical industry, such as in nitric acid and caprolactam plants, and in combustion processes.
The synthesis and electropolymerisation of a new terthiophene, 1,3-di-2-thienylthieno[3′,4′:5,6][1,4]dithiino[2,3-b]quinoxaline, is reported. The compound bears a quinoxaline unit fused to the central thiophene ring via a 1,4-dithiin ring; the latter unit ensures a non-planar structure for the molecule. The correspond…
Organic–inorganic hybrid Ti-functionalized mesostructured materials have been synthesized from titanocene dichloride in the presence of non-ionic surfactants as structure directing agents in acidic media. The organic functionalization of the mesoporous silica based materials has been accomplished by different techniqu…
A {Mn(III)4} distorted cube has been synthesized that possesses an S = 8 ground state and single-molecule magnetism behaviour.
High-resolution X-ray diffraction experiments and state-of-the-art density functional theory calculations have been performed. The validity of the atoms-in-molecules approach is tested for the neutral-ionic transition of TTF-CA which involves a transfer of less than one electron between the donor and acceptor molecule…
Reaction of UO2(OTf)2 with 5 molar equivalents of NEt4CN in acetonitrile led to the formation of the pentacyano uranyl complex [NEt4]3[UO2(CN)5] which is monomeric in the solid state with the five C-coordinated cyanide ions lying in the equatorial plane perpendicular to the linear {UO2} axis.
This paper describes the direct synthesis of bifunctional organosilica containing chelating groups in the framework and reactive functional groups in the channel pores. These materials were obtained in one step by direct synthesis using co-condensation of a bridged organosilica with chelating properties, tetraethylort…
As Jørgensen pointed out in 1966 (Coord. Chem. Rev., 1966, 1, 164), a ligand is to be regarded as 'innocent' if it allows the oxidation state of a metal in a complex to be defined. In this respect, the vast majority of ligands are 'innocent' and, therefore, ligands that are 'non-innocent' have received special attenti…
The air/water/air interface was employed as a platform for the self-assembly of colloidal microspheres, leading to planar and curved free-standing colloidal crystal films with sizes in excess of several square millimeters. In the resulting crystal films, few cracks were observed. The confinement of the air/water/air i…
Pyrene mediated noncovalent attachment of a chlorophyll derivative, pyro-pheophorbide a, to a soluble single wall carbon nanotube is reported and the resultant CD, UV-Vis absorbance, fluorescence and 1H NMR spectra are discussed.
Diblock and multiblock copolymers composed of a poly(D,L-lactide) (PLA) or poly(trimethylene carbonate) (PTMC) core with a hydrophilic chain of poly(ethylene glycol) (PEG) were prepared. These copolymers, in which the core is connected to PEG through a polyfunctional molecule such as citric, mucic, or tartaric acid, m…
The first paramagnetic homo- and hetero-metallic trinuclear complexes with redox active ligands derived from TTF are synthesized, the central metal ion has an octahedral coordination sphere while the outer CoII ions are in a distorted bipyramidal surrounding, bearing TTF-ligands, the magnetic properties show antiferro…
Electrophoretic deposition of donor–acceptor nanostructures onto electrodes is reviewed in terms of light-to-electrical energy conversion. Various donors and acceptors and their composites have been deposited electrophoretically onto a nanostructured SnO2 or TiO2 electrode which exhibits photocurrent generation. In pa…
Bent-core molecules based on a bent 2,7-disubstituted naphthalene unit and heptamethyltrisiloxane units at one or both ends of the aliphatic side chains were synthesized and investigated by polarized light microscopy, differential scanning calorimetry, X-ray scattering and electrooptical investigations. The effect of…