You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a organic electroluminescent device, electroluminescent device, and electroluminescent compound. Use the above information to create a molecule.
user
Clc1cc(-c2ccccc2-c2cnc3c(ccc4ccccc43)c2)cc(-c2ccccc2-c2cnc3c(ccc4cc(-c5ccc(-c6ccc7c(c6)ncc6cccnc67)c(-c6cc(Cl)cc(-c7ccccc7-c7ccc8c(c7)ncc7cccnc78)c6)c5)ccc43)c2)c1
assistant