Molecular Crystals and Liquid Crystals, Vol.390, 105-112, 2003
The influence of the substitution pattern of acridizinium salts on the regioselectivity of the solid-state photodimerization
Irradiation of 8-bromoacridizinium. bromide in the solid state gave preferentially the anti-head-to-head dimmer whereas a benzo-annelated acridizinium salt gives exclusively the corresponding anti-head-to-tail photodimer The results are discussed on the basis of X-ray diffraction analysis and DFT calculations.
Keywords:solid-state photochemistry;[4 divided by 4] photocycloaddition;acridizinium salts;DFT calculations