Abstract
Ruthenium(II) polypyridyl complexes are among the most studied metal
complexes, with numerous articles and book chapters dedicated to them due to their
properties being used in technological and medical fields, such as applications in
photocatalysis and dynamic phototherapy, among others.
Photochemistry is one of the most important processes for living beings due to
photosynthesis, which starts from simple molecules and sunlight to efficiently produce
a complex carbohydrate and oxygen gas, the last being essential for aerobic living
beings.
Ru(II) complexes with perylene diimide (PDI) ligands exhibit interesting
characteristics for studies of electron and charge transfer, such as long triplet state
lifetimes in the nanosecond range. Due to this long lifetime, the complexes can be
applied in the production of singlet oxygen and for photodynamic therapy.