You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
It belongs to the light-emitting class of molecules. Use the above information to create a molecule.
user
CCCCc1ccc(N(c2ccc(-c3ccc(N(c4ccc(CCCC)cc4)c4ccc(C(C)(C)CCC)cc4)cc3)cc2)c2ccc(C(C)(C)CC)cc2)cc1
assistant