MeSH headings : Antineoplastic Agents / chemistry; Antineoplastic Agents / metabolism; Antineoplastic Agents / pharmacology; Cell Hypoxia; Coordination Complexes / chemistry; Oxygen / metabolism; Ruthenium Compounds / chemistry; Ruthenium Compounds / metabolism; Ruthenium Compounds / pharmacology; Spectrum Analysis / methods

TL;DR: The structure and nature of the aromatic group had a subtle impact on photochemistry, altering environmental sensitivity, and had a significant impact on cellular cytotoxicity and photobiology. (via Semantic Scholar)