Wang, Peng, et al. “Synthesis, 2D NMR, Electrochemistry and Luminescence Ruthenium(II) Complexes With 2,2’-Bipyridine and 5-(Ω-Bromoalkylamido)-1,10-Phenanthroline”. Asian Journal of Chemistry, vol. 12, no. 3, Mar. 2010, pp. 643-9, https://asianpubs.org/index.php/ajchem/article/view/23036.