| abstract |
PROBLEM TO BE SOLVED: To provide a highly reliable organic electroluminescent element material capable of emitting light with high luminance and high efficiency and having little degradation of light emission, and an organic electroluminescent element using the same. . SOLUTION: The organic electroluminescence device material of the general formula 1 is provided. [Ar 1 to Ar 6 are an aryl group, and X 1 to X 6 are each independently- O -, - S -,> C = O,> SO 2, -Si (B 1) B 2 -, - N (B 1 ) -, - PB 1 -, - P (= O) B 1 -(B 1 and B 2 represent an alkyl group or an aryl group), - (CH 2) X -O- ( CH 2) Y - (x, y is 0-2 Represents an integer of 0, but not x + y = 0. ), An alkylene group, or an aliphatic ring residue, and A represents a trivalent group. ] |