T. Takase and D. Oyama, “Synthesis and structural analysis of cis-bis(1,10-phenanthroline)dicarbonyl ruthenium(II) 1.72-trifluoromethanesulfonate 0.28-hexafluoridophosphate”, Eur. J. Chem., vol. 12, no. 4, pp. 389–393, Dec. 2021.