In a further aspect, the present invention relates to {TAIL ~ the use} of the novel diphenyl amine derivatives as fluorescent substance for {HEAD ~ electronic materials} such as an organic electroluminescence device or display 
In a further aspect , the present invention relates to { TAIL ~ the use } of the novel diphenyl amine derivatives as fluorescent substance for { HEAD ~ electronic materials } such as an organic electroluminescence device or display
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