2 9 bis 4 methoxyphenyl )- 1 10 phenanthroline July 8, 2019 16 32 64 128 9 10-bis(phenylethynyl)anthracene 2 2-dimethoxy-2-phenylacetophenone 99 2 4-bis(1-methyl-1-phenylethyl)phenol 2 9-dimethyl-4 7-diphenyl-1 10-phenanthroline 9 9-bis 4-(2-hydroxyethoxy)phenyl fluorene