π-conjugated aromatic ring-containing compound and organic electroluminescent device
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United States of America Patent
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Mar 29, 2011
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Mar 8, 2005
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Mar 9, 2004
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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.independently represent an integer of 1-5.]
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