Synthesis of Four-Membered BN3 Heterocycles by the Borylation of Triazenes
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The Mulliken charges of the 12-metallacrown-3 complex (C6H6)Ru(C5H3NO2) were determined by a single point analysis at the HF level. For comparison, a Mulliken population analysis was carried out for the organic analogue 12-crown-3. The partial negativ ...
Nowadays, the use of micro- or nano-patterned surfaces is well established in wide fields of science and in numerous applications in the industry. Periodic surface-relief profiles with dimensions in the wavelength range of the light can act as diffractive ...
Institut de Microtechnique, Université de Neuchâtel2007
Au nano- and microstructures such as polyhedral crystals, large single-cryst. nanoplates, hollow trapeziform crystals, holey polyhedra, and dendrites were produced via microwave heating of HAuCl4·4H2O in a variety of ionic liqs. (ILs) in the absence of cap ...
Thick-film and LTCC (Low Temperature Cofired Ceramic) technologies find increasing use in meso-scale sensors, actuators and related devices that feature excellent dimensional, thermal and chemical stability at moderate cost. While several materials and pro ...
The extremely low permeability of Ultra High Performance Fibre Reinforced Concretes (UHPFRC) associated to their outstanding mechanical properties make them especially suitable to locally "harden" reinforced concrete structures in critical zones subjected ...
The work presented in this paper deals with the bonding of small structures, down to 1 mu m. Its aim is to evaluate the dimensional limits of anodic bonding between silicon and pyrex 7740 glass. Test structures consisting in silicon pillars with controlled ...
Superpositions of periodic dot screens are largely used in electronic imaging in the field of color printing. In such superpositions the interaction between the superposed layers may cause new structures to appear which did not exist in any of the original ...
The work presented in this paper deals with the bonding of small structures, down to 1 mu m. Its aim is to evaluate the dimensional limits of anodic bonding between silicon and pyrex 7740 glass. Test structures consisting in silicon pillars with controlled ...
Eight sesquiterpenes, four stilbene derivs. along with two lignans have been isolated from lipophilic fraction of stems of Dendrobium moniliforme (Orchidaceae). Among the eight sesquiterpenes, one allo-aromadendrane-type (I) and four picrotoxane-type sesqu ...
IB-LIGA (Ion Beam Lithographie, Galvanoformung and Abformung) is a new technique for the 3D structuring of photoresist materials. It is a direct-write (maskless) technique that uses high energy (0.5-3.5 McV) light ions (protons or helium ions) for the irra ...