You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Generate a molecule based on this description: The molecule is a organic electroluminescent element and electroluminescent, belonging to the organic electroluminescent device class of molecules, with effects on both low driving voltage and organic electroluminescence.
user
c1ccc(-c2ccc(N(c3ccccc3)c3ccc(-c4ccc5c(c4)Cc4cc(-c6cccc7ccccc67)ccc4N5c4ccc5ccccc5c4)cc3)cc2)cc1
assistant