| abstract |
A compound comprising a structure represented by the following formula (1) (including a structure of residues excluding at least one hydrogen atom from the structure represented by the following formula (1)). (In Formula (1), A ring, B ring, and C ring each independently represent a monocyclic aromatic ring or a condensed aromatic ring, R 1 and R 4 each independently represent a monovalent group, and R 2 , R 3 , R 5 and R 6 each independently represent a hydrogen atom, an alkyl group, an aryl group, an arylalkyl group, an alkenyl group or an alkynyl group) |