| Abstract
| - Water soluble dinuclear Ru−arene complexes were synthesized and found to exert promising cytotoxic effects in human cancer cells, which could be increased to an IC50 of 0.29 μM by increasing the spacer length between the metal centers. Cytotoxicity could be correlated with lipophilicity (log P values) and water solubility. The most potent dinuclear compound, 1,12-bis{chlorido[3-(oxo-κO)-2-methyl-4-pyridinonato-κO4](η6-p-isopropyltoluene)ruthenium}dodecane, is at least 2−3 orders of magnitude more active than the mononuclear analogue chlorido[3-(oxo-κO)-2-methyl-4-pyronato-κO4](η6-p-isopropyltoluene)ruthenium.
- Water-soluble dinuclear Ru−arene complexes were synthesized and found to exert promising cytotoxic effects in human cancer cells, which could be increased to an IC50 of 0.29 μM by increasing the spacer length between the metal centers. Cytotoxicity could be correlated with lipophilicity (log P values) and water solubility. The most potent dinuclear compound, 1,12-bis{chlorido[3-(oxo-κO)-2-methyl-4-pyridinonato-κO4](η6-p-isopropyltoluene)ruthenium}dodecane, is at least 2−3 orders of magnitude more active than the mononuclear analogue chlorido[3-(oxo-κO)-2-methyl-4-pyronato-κO4](η6-p-isopropyltoluene)ruthenium.
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