You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a phosphorescent and a organic electroluminescent device, belonging to the phosphorescent emitter class of molecules, has an effect on electron transport, and is electroluminescent.
user
c1ccc(-c2cccc(-n3c4ccccc4c4cc(-c5ccc6c(c5)c5cc7c(cc5n6-c5ccccc5)C5(c6ccccc6-c6ccccc65)c5ccccc5-7)ccc43)c2)cc1
assistant