The compounds of the present invention show blue or blue green luminescence, and {HEAD ~ luminescence} of the compounds herein can be achieved by UV or visible light, thus being useful as {TAIL ~ a fluorescent dye or fluorescent material} for an organic electroluminescence device or display 
The compounds of the present invention show blue or blue green luminescence , and { HEAD ~ luminescence } of the compounds herein can be achieved by UV or visible light , thus being useful as { TAIL ~ a fluorescent dye or fluorescent material } for an organic electroluminescence device or display
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