(11bS)-4-Hydroxy-2,6-di(pyren-1-yl)dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide 1g

(11bS)-4-Hydroxy-2,6-di(pyren-1-yl)dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepine 4-oxide 1g