4 4 methylphenyl 2 2 6 2 terpyridine July 8, 2019 16 32 64 128 4'-(4 '-pyridyl)- 2 2'-6' 2''- terpyridine 2 2 6 6-tetramethyl-4-piperidinone 2 4 6-trimethylpyridine
