4 7-dimethyl-1 10-phenanthroline July 8, 2019 16 32 64 128 4 7 dimethyl 1 10 phenanthroline 2 9-dimethyl-4 7-diphenyl-1 10-phenanthroline 4 7-diphenyl-1 10-phenanthroline 9 10-dimethylanthracene
