π-conjugated aromatic ring-containing compound and...

Details π-conjugated aromatic ring-containing compound and... π-conjugated aromatic ring-containing compound and...

2011-03-29

2011-03-29

Tarazano, D. Lawrence (Department: 1786)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S917000, C313S504000, C252S301160, C564S433000, C556S413000, C556S431000, C546S286000

Reexamination Certificate

active

07914905

ABSTRACT:
A π-conjugated aromatic ring-containing compound represented by the formula (1) below is relatively stable and useful as a light-emitting material for light from blue-violet region to red region.[In the formula, R1-R6independently represent a hydrogen atom or the like; A and D independently represent a pyridine ring, pyrimidine ring, pyridazine ring, pyrazine ring, furan ring, pyrrole ring, pyrazole ring, imidazole ring, thiophene ring, benzothiadiazole ring, thieno[3,4-b]pyrazine ring, furo[3,4-b]pyrazine ring, 6H-pyrrolo[3,4-b]pyrazine ring or the like; a1, a2and a3independently represent 0 or 1; and n1and n2independently represent an integer of 1-5.]

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