Density functional theory calculations are performed to explore the mechanisms of poorly understood monomolecular conversions isobutanol butenes, belonging an important class transformations biobased molecules into chemicals. Except for lowest reaction temperatures (<405 K), at which a conventional mechanism via alkoxide intermediates dominates, alkenes formation proceeds newly explored routes ...

Langmuir monomolecular layers, formed by amphiphilic molecules at liquid-air interfaces and containing a fraction of chiral molecules, are theoretically investigated. These monolayers can be brought out of thermal equilibrium by applying a gradient of small molecules across the interface, resulting in the leakage flow. We show that, when splay coupling between the orientation field and the loca...

1. The rate of the saponification of iodoacetic acid in sodium hydroxide and alkaline buffer solutions yielding glycollic acid was measured by means of Heyrovský's polarographic method. 2. From the bimolecular velocity constants, increasing with the ionic strength of the solution, the Brönsted factor, F, which characterizes the primary salt effect, was calculated. 3. In the borate buffer soluti...

In the last few years, interest in monomolecular layers of transition metal dichalcogenides (TMDs) has been driven by their unusual electronic and optical properties, which are very attractive for designing functional elements new generation nanoelectronics. Recently, experimental evidence appeared formation a high-temperature strongly bound electron-hole liquid (EHL) TMD monolayers. Strong bin...

Межфазные взаимодействия и цепная динамика были изучены в четко охарактеризованных наночастицах ядро-оболочка с ядрами из аморфного кремнезема кристаллического оксида алюминия оболочками не кристаллизуемого поли-(винил-1-пирролидона) (ПВП) поли(этиленгликоль) (ПЭГ). Варьирующийся состав частиц вызывал закономерные изменения толщины оболочки от 1-2 нм (мономолекулярный слой) до 90 нм. Спектроско...

Waveguide evanescent field fluorescence (WEFF) microscopy is a new development that allows the imaging of contact regions between biological cells and their substratum, as well as imaging of ultrathin films such as monomolecular Langmuir-Blodgett (LB) films. Mixed-lipid monolayer systems mimicking lung surfactant were fabricated on waveguides using the LB technique and imaged by both WEFF and s...