| 主权项 |
1. A polycyclic aromatic compound represented by the following general formula (1), or an oligomer of a polycyclic aromatic compound having plural structures that are each represented by the following general formula (1):wherein in formula (1),
ring A, ring B and ring C each independently represent an aryl ring or a heteroaryl ring, while at least one hydrogen atom in these rings may be substituted; Y1 represents B, P, P═O, P═S, Al, Ga, As, —R or Ge—R, wherein R of the moieties Si—R and Ge—R represents an aryl or an alkyl; X1 and X2 each independently represent O, N—R, S or Se, wherein R of the moiety N—R represents an aryl or alkyl which may be substituted, and R of the moiety N—R may be bonded to the ring B and/or ring C by a linking group or a single bond; and at least one hydrogen atom in the compound or structure represented by formula (1) may be substituted by a deuterium atom. |
