Molecular stacking and solid state spectra of 2,5-bis (1-aza-1-cycloalkyl)-3,6-dicyanopyrazines and their X-ray crystal structures

摘要

Solid state absorption and fluorescence spectra of 2,5-bis (1-aza-1-cycloalkyl)-3,6-dicyanopyrazines were correlated in terms of intermolecualr pi-pi interactiosn with their differences in molecular stacking evaluated by X-ray structure analyses and MOPAC methods.