We have used the ionisation equilibrium equation to derive the electron density in in-terstellar clouds in the direction to 13 stars. A linear relation was found, that allows the determination of the electron density from the Mg I and Mg II column densities in interstel-lar medium. The comparison of normalised equivalent width of 12 DIBs with the electron density shows that the DIBs equivalent ...

An n→π* interaction stems from the delocalization of the electron pair (n) of a donor group into the antibonding orbital (π*) of a carbonyl group. Crystallographic analyses of five pairs of diastereoisomers demonstrate that an n→π* interaction can induce chirality in an otherwise planar, prochiral carbonyl group. Thus, a subtle delocalization of electrons can have stereochemical consequences.

In the beam pipe of the positron damping ring of the Next Linear Collider, electrons will be created by beam interaction with the surrounding vacuum chamber wall and give rise to an electron cloud. Several solutions are possible for avoiding the electron cloud, without changing the bunch structure or the diameter of the vacuum chamber. Some of the currently available solutions for preventing th...

The synthesis of four non-fullerene acceptors (NFAs) with a “A–π–D–π–A” structure, in which the electron-donating core is extended, was achieved. molecules differed by nature solubilizing groups on π-spacer and/or presence fluorine atoms peripheral electron-accepting units. optoelectronic properties were characterized solution, thin film, and photovoltaic devices. had minor influence but affect...