Patent ID: 7935960
Filing Date: 2011-05-03
Classification: C07C,C07D,C07F,H01L,Y02E

Abstract:
1. A polyacene compound selected from the following formulae wherein R X is halogen, R optionally two or more of the substituents R optionally one or more of the carbon atoms in the rings formed by R wherein the compound does not have a symmetry axis or symmetry plane perpendicular to its long molecular axis, R 5a , R 6a , R 11a and R 12a denote —C≡C-MR′R″R′″ or —C≡C-MR′R″″ M is Si or Ge, R′, R″ and R′″ are each independently H, a C R″″ forms a cyclic silyl alkyl group together with the M atom, wherein all these groups are optionally substituted, and R 13a and R 14a denote a C 1 -C 40 -alkyl group that is optionally substituted.