DFT study of GaAs quantum dot and 5CB liquid crystal molecule interaction.

Liquid crystals (LC) are widely used in various optical devices due to their birefringence, dielectric anisotropy, and responsive behavior to external fields. Enhancing the properties of existing LCs through doping with nanoparticles, including semiconductor quantum dots, offers a promising route for improving their performance. Among various nanoparticles, QDs stand out for their high charge mobility, sensitivity in the near-infrared spectral region, and cost-effectiveness.

Decarboxylation of Aza-Annulation Products as a Synthetic Route to 3-Pyrrolin-2-ones and 1,2,3,4-Tetrahydropyridin-2-ones.

Aza-annulation of enamines derived from β-ketoesters with maleic and itaconic anhydrides proceeds with excellent diastereoselectivity to provide functionalized γ- and δ-lactams. Further hydrolysis of the aza-annulation products resulted in dicarboxylic acids that underwent spontaneous decarboxylation under ambient conditions. The decarboxylation of β-γ unsaturated carboxylic acids with an electron-rich enamide C═C bond proceeds with the migration of the C═C bond and serves as a practical synthetic entry into 3-pyrrolin-2-ones and 1,2,3,4-tetrahydropyridin-2-ones.

Two-dimensional pair-interacting hole gas thermodynamics: Exactly solvable Moshinsky model for lens-shaped quantum dots.

The thermodynamic characteristics of a pair-interacting hole gas localized in a Ge/Si lens-shaped quantum dot are studied. The pair-interaction potential is modeled by the oscillator function, which depends on the distance between the particles. The analytical form of the spectra makes it possible to calculate the partition function in Boltzmann approximation.

Electrochemical synthesis of spirocyclic morpholines and tetrahydrofurans an oxidative dearomatisation strategy.

Simple and scalable electrochemical oxidation of the electron-rich benzene ring followed by intramolecular capture of reactive cation-radical intermediates opens access to spirocyclic morpholines and tetrahydrofurans. The obtained molecules can be readily modified to value-added building blocks.