(11bR)-4-Hydroxy-2,6-bis(5'-phenyl-[1,1':3',1''-terphenyl]-4'-yl)dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide

(11bR)-4-Hydroxy-2,6-bis(5'-phenyl-[1,1':3',1''-terphenyl]-4'-yl)dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide,