Synthesis, Crystal Structure, and Polymerization of 1,2:5,6:9,10-Tribenzo-3,7,11,13-tetradehydro[14]annulene - Baldwin, Kyle P; Matzger, Adam J; Scheiman, Daniel A; Tessier, Claire A; Vollhardt, K Peter C; Youngs, Wiley J (Synlett, 1995)