You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
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Suppose there is a molecule that meets the following description: The molecule is a organic electroluminescent element and organic electroluminescent, with effects on both delayed fluorescence and organic electroluminescence. The molecule is a fluorescent and belongs to the electroluminescent class of molecules, impacting both electron-transporting and luminous efficiency. Please write the SMILES representation of it.
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