... Journal of the ... Katsis, D.; Geng, YH; Ou, JJ; Culligan, SW; Trajkovska, A.; Chen, Shaw H.; Rothberg, LJ. Chemistry of Materials (2002), 14 (3 ... (American Chemical Society). A series of spiro-linked oligofluorenes, eg I (R = n-C8H17, n-C3H7), were synthesized that exhibit blue ...