Patent ID: 7947826

Claim:
An organic semiconductor comprising at least one compound represented by formula (PC-2): wherein M represents a metallic atom or two hydrogen atoms, the two hydrogen atoms bond respectively to a nitrogen atom of an isoindole ring and to a nitrogen atom of an isoindoline ring when M represents two hydrogen atoms, and the metal atom represented by M is selected from the group consisting of Li, Na, K, Be, Mg, Ca, Ba, Al, Si, Hg, Cr, Fe, Co, Ni, Cu, Zn, Ge, Pd, Cd, Sn, Pt, Pb, Sr, V, Mn, Ti, In or Ga; R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , and R 16 each independently represents a hydrogen atom or a substituent selected from the group consisting of a fluorine atom, an alkyl group, an aryl group, —SO 2 R 17 and —SO 2 N(R 17 ) 2 with the proviso that at least the one substituent is —SO 2 R 17 or —SO 2 N(R 17 ) 2 , and R 17 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group.